Entries |
Document | Title | Date |
20080223111 | SYSTEM FOR DETECTING HYDRAULIC FLUID LEAKS - A control system and method for detecting a hydraulic system leak in an engine includes a pressure sensor that senses a first pressure reading of a hydraulic fluid supply at a first time and a second pressure reading of said hydraulic fluid supply at a second time. A comparison module calculates a pressure ratio based on the first and second pressure readings and signals a fault condition based on a relationship between the pressure ratio and a pressure threshold. | 09-18-2008 |
20080236252 | Micronaire Measurement - A method of determining a testing volume for a micronaire measurement by containing a fiber sample within a micronaire chamber having a length and at least one movable end wall. A flow is initiated along the length of the micronaire chamber. The fiber sample is compressed within the micronaire chamber by advancing the movable end wall, and the advancement of the movable end wall is stopped when at least one property of the flow attains a set point. The position of the movable end wall defines the testing volume. In this manner, there is provided a convenient method of setting a testing volume and acquiring the information needed to take a micronaire measurement. | 10-02-2008 |
20080289398 | Method For Determining a Pressure That Corresponds to a Flow Rate Through a Check Valve - The present invention accommodates differences in cracking pressures between check valves by determining a pressure on the input of a check valve that corresponds to a predetermined flow rate at the output of the check valve. A container is incrementally pressurized and the vacuum at a point on the output side of the check valve is monitored. Once fluid begins to pass through the check valve, the vacuum drops. At the predetermined flow rate, the pump cannot maintain a predetermined vacuum level since it cannot exceed a maximum speed. At this point the pressure applied to the container corresponds to the predetermined flow rate. An offset is added to the pressure to determine the minimum operating pressure. | 11-27-2008 |
20080314119 | DEVICE FOR MEASURING BACK PRESSURE IN CHEMICAL REACTOR TUBES - A device and method for measuring the back pressure in chemical reactor tubes includes many automated features. Inflatable tube seals may be automatically inflated. The device may measure several tubes at once. It may transmit data electronically to a remote computer for analysis and graphic display. | 12-25-2008 |
20090031788 | Hydraulic scale for determing seeding density of a planter and method - A hydraulic scale for planter calibration is disclosed. The hydraulic scale includes a tube having indicia disposed thereon. The tube has a substantially closed bottom and a substantially open top. The indicia disposed on the tube include at least one scale having a zero line. The tube is configured to float substantially upright when positioned in a liquid, such that the zero line is substantially aligned with the surface of the liquid. A non-zero line portion of the scale is configured to align with the surface of the liquid when at least one of seeds and feed are placed within the tube. | 02-05-2009 |
20090064763 | PRESSURIZED OXYGEN FOR EVALUATION OF MOLDING COMPOUND STABILITY IN SEMICONDUCTOR PACKAGING - A test environment and an associated method of testing and analyzing a semiconductor package material containing a molding compound, for stability in a sustained oxygen environment. Test samples are exposed to a pressurized gas containing oxygen, under elevated temperature below the glass transition temperature of the molding compound. Control samples are exposed to a pressurized inert gas under similar or more severe conditions of gas pressure, temperature, and humidity. At least one characteristic common to the test samples and the control samples is measured. A determination is made as to whether there exists at least one significant difference between the at least one measured characteristic of the test samples and the control samples. | 03-12-2009 |
20090308138 | PROCESS FOR MEASURING THE UNIFORM FILLING OF REACTORS WITH SOLID BODIES - The invention relates to a process for measuring the uniform filling of reactors or columns with solid bodies and to an apparatus for performing the process. | 12-17-2009 |
20100037680 | METHODS AND APPARATUSES FOR DETECTING OCCLUSIONS IN AN AMBULATORY INFUSION PUMP - An improved pump, reservoir and reservoir piston are provided for controlled delivery of fluids. A motor is operably coupled to a drive member, such as a drive screw, which is adapted to advance a plunger slide in response to operation of the motor. The plunger slide is removably coupled to the piston. Methods, systems, and articles of manufacture for automatically detecting an occlusion in a medication infusion pump are provided. The electrical current to an infusion pump may be measured. Based on measurements of one or more variables, and/or multiple measurements of a single variable, such as force, the infusion pump detects whether there is an occlusion in the system. The methods of detecting occlusions may be dynamic. | 02-18-2010 |
20100147053 | BREAKAWAY TOOLING APPARATUS - A breakaway tooling apparatus connectable to a manipulator and at least one tool for limiting the amount of damage to the associated manipulator and tool when the apparatus accidentally engages an obstacle. The detection mount has a narrowed neck region and stepped throughbore adjacent the narrowed neck region for creating a weakened portion that will fracture upon the realization of a predetermined force to the detection mount. An air passageway extends from an outer portion of the detection mount to an inner portion of the detection mount, wherein the air passageway is connectable to a supply of pressurized air. A blocking member prevents the pressurized air from passing through the air passageway in the detection mount when the detection mount is not fractured at the weakened portion, and the blocking member allows pressurized air to flow through the air passageway in the detection mount when the detection mount is fractured at the weakened portion. A pressure indicator determines whether the air pressure in the air passageway is above or below a predetermined air pressure level, thereby indicating whether the detection mount is fractured at the weakened portion. | 06-17-2010 |
20100218596 | METHODS AND APPARATUS FOR TESTING A HONEYCOMB BODY - Methods are provided for testing a honeycomb body comprised of a core portion comprising honeycomb cell walls and a circumferential skin portion overlying at least some outer honeycomb cell walls. The circumferential skin portion includes a cement mixture layer. The method comprises the step of directing a fluid stream from a pressurized fluid source at the honeycomb body. The fluid stream is capable of separating at least part of the skin portion from the outer honeycomb cell walls when the adherence between at least part of the skin portion and the outer honeycomb cell walls is below a minimum threshold. In one example, the method further comprises the step of inspecting at least part of the interface between the honeycomb body and the skin portion during or after directing the fluid stream at the honeycomb body. In further examples, an apparatus is provided for testing the honeycomb body. | 09-02-2010 |
20110061448 | HYDRAULIC SYSTEM CALIBRATION METHOD AND APPARATUS - A ground engaging vehicle including a frame, an engine connected to the frame, a controller, and a hydraulic system powered by the engine. The hydraulic system includes a plurality of actuators, a plurality of valves, and at least one sensor. The plurality of valves include a first valve associated with a corresponding one of the plurality of actuators. Each of the plurality of valves is operatively connected to the controller. The at least one sensor is adapted to send a signal to the controller indicating a hydraulic connectivity through the first valve. The controller is adapted to open the first valve allowing hydraulic fluid to pressurize a first actuator until the first actuator is driven to an end of its stroke. The controller is further adapted to close the valve and send an increasing current to the valve. The at least one sensor detects a hydraulic connectivity through the valve and the controller is adapted to establish a threshold current value as the value of the increasing current when the at least one sensor detects the hydraulic connectivity through the valve. | 03-17-2011 |
20110094294 | Duct Smoke Detection System and Method - An assembly for testing of smoke detectors, installed to detect the presence of smoke in ductwork or through a smoke protected opening, and includes a plenum rated hose assembly having a duct end and a smoke end. The hose assembly smoke end is extendable to within the duct and is terminated with a nozzle directable at an inlet tube of a smoke detector associated with the duct, or to the detector protecting a smoke protected opening. A duct mounting plate is adapted to be sealingly installed to cover an aperture formed within the duct and to retain the hose assembly duct end. Smoke is directed into the hose smoke end. The smoke exits the hose through the nozzle and towards the inlet tube of the duct-mounted smoke detector, or towards the detector for a smoke protected opening, for testing of the smoke detector. | 04-28-2011 |
20110132073 | Fatigue Testing System for Prosthetic Devices - A fatigue testing system provides simultaneous cycle testing for a plurality of prosthetic devices under simulated physiological loading conditions. A plurality of sample holders containing test samples of prosthetic devices is positioned between a distribution chamber and a return fluid chamber to form an integrated test chamber. A reciprocating linear drive motor operates a rolling bellows diaphragm to cyclically pressurize fluid within the test chamber and drive the pressurized fluid through the prosthetic devices being tested. The test chamber defines a return flow conduit in fluid communication with each of the sample holders, the return fluid chamber, and the distribution chamber. Compliance chambers and throttle valves associated with each of the sample holders regulate the pressure gradient and back pressure across the prosthetic devices being tested. | 06-09-2011 |
20110146385 | Fatigue evaluation of prostheses by radial excitation of tubular structures - Prostheses are fatigue tested using an apparatus under simulated physiological loading conditions. A fluid housing defines an entrance chamber having fluid outflow ports and an exit chamber having opposing fluid inflow ports and a central flow conduit in communication with the entrance chamber and the exit chamber. A plurality of housing tubes into which prosthesis are deployed may extend between the fluid outflow and inflow ports. Alternatively, tubular prostheses may be connected directly between the inflow and outflow ports. A reciprocating linear drive pump having a flexible diaphragm is provided to cyclically pressurize fluid through a common closed loop within the fluid housing and drive the pressurized fluid through the prosthesis being tested. The test system is capable of rotation independent of the motor drive for accurate diameter measurements of all test samples at elevated frequencies. | 06-23-2011 |
20110232368 | PRESSURIZED AND HEATED TESTING CHAMBER - An apparatus and process for testing a sample of a hydraulic fracturing fluid is provided. A small quantity of a fracturing fluid sample to be observed and/or tested is placed in a chamber designed with suitable heat and pressure simulation apparatus. With the sample chamber, the efficacy of the fracturing fluid can be ascertained, improper fracturing fluid compositions and/or mixtures, e.g., caused by human error, can be detected, and contamination of the frac-tank can be determined. The overall apparatus is portable and can be transported to the site of the fracturing fluid tank, thereby allowing testing immediately prior to introduction into the well. The samples in the test chamber can be observed for quality control and quality assurance prior to, or during stimulation and water shutoff treatments in the field. | 09-29-2011 |
20110232369 | PRESSURE GUIDING TUBE BLOCKAGE DIAGNOSING DEVICE AND BLOCKAGE DIAGNOSING METHOD - A pressure transmitting device detects, through a pressure guiding tube, a pressure of a liquid, slurry, gas, or the like to be measured, wherein there are fluctuations in the pressure; where the pressure guiding tube blockage diagnosing device comprises: a rising/falling frequency detecting portion for segmenting into a plurality of continuous intervals a time series of pressure values detected by the pressure transmitting device, and for detecting, in each time interval, the rising/falling frequency of the fluctuations; and an evaluating portion for evaluating the state of blockage of the pressure guiding tube through comparing, to a specific threshold value, the rising/falling frequency of the fluctuations. | 09-29-2011 |
20110308299 | PRESSURE GUIDING TUBE BLOCKAGE DIAGNOSING DEVICE AND BLOCKAGE DIAGNOSING METHOD - A pressure transmitting device detects, through a pressure guiding tube, a pressure of a liquid, slurry, gas, or the like to be measured, wherein there are fluctuations in the pressure; where the pressure guiding tube blockage diagnosing device comprises: a rising/falling frequency detecting portion for segmenting into a plurality of continuous intervals a time series of pressure values detected by the pressure transmitting device, and for detecting, in each time interval, the rising/falling frequency of the fluctuations; an evaluating portion for evaluating the state of blockage of the pressure guiding tube through comparing, to a specific threshold value, the rising/falling frequency of the fluctuations; and a detecting interval adjusting portion for adjusting a detecting interval for the rising/falling frequency of the fluctuations based on an autocorrelation coefficient for the pressure value. | 12-22-2011 |
20120031172 | Device and method for applying a force to a planar surface - A device for applying a force to a planar surface includes a tub, a cavity, a membrane, and an opening. The tub includes a bottom wall, at least one sidewall, and a cavity defined between the bottom and sidewalls. The membrane is disposed within the cavity and a perimeter edge of the membrane is fixed to the tub. The opening is formed in the tub and adapted to receive a pressurized fluid to fill a portion of the cavity below the membrane to displace at least a portion of the membrane away from the bottom wall to apply a force to the planar surface. | 02-09-2012 |
20120060588 | HUMIDITY AND OSMOTIC SUCTION-CONTROLLED BOX - Described herein are systems, apparatuses and methods for the design and use of a suction-controlled box for the measurement of stress-dependent soil and water characteristics, shear strength, volume changes and consolidation characteristics from a single unsaturated soil specimen. The suction-controlled box can include a suction control part and a mechanical loading part, which can apply various suctions and mechanical loadings to test a specimen for a full range of suctions. The suction-controlled box can also include a helical water compartment that can flush diffused air bubbles. | 03-15-2012 |
20120174654 | Hydrostatic Test Tool and Method of Use - Hydrostatic testing tool and methods for testing a test article, such as a hose or container having an external threaded aperture. The preferred testing tool includes a housing, a piston and a collet body having a plurality of collet segments collectively forming a cylindrical inner perimeter having a variable diameter, each collet segment having a threaded surface on the inner perimeter such that the piston can selectively actuate the collet body to vary the diameter of the inner perimeter. In preferred embodiments, the hydrostatic testing tool utilizes a handle assembly that is arranged and configured such that only one hand is needed to operate the hydrostatic testing tool. | 07-12-2012 |
20130055792 | HYGIENIC INTEGRITY TEST IN ULTRAFILTRATION SYSTEMS - A method for testing the integrity of a hollow fibre membrane includes inserting a sterile, monomolecular gas into an interior of the hollow fibre membrane, applying a starting gas pressure on the gas in the interior of the hollow fibre membrane at a first point in time, and measuring the pressure of the gas at a second point in time after the first point in time so as to determine a final gas pressure. | 03-07-2013 |
20130055793 | FILTER CLOGGING DETECTION APPARATUS - There is provided a filter clogging apparatus capable of detecting clogging of an individual filter without being limited to the direction in which cooling air is taken in. There is provided a filter clogging detection apparatus for detecting clogging in filter ( | 03-07-2013 |
20130104628 | CONDITION DETERMINING | 05-02-2013 |
20130133405 | SHUT-OFF VALVE TESTING SYSTEM - The shut-off valve testing system provides for the testing of the main shut-off valve of a combustible gas supply line in such facilities as refineries, factories, or other plants utilizing such gaseous fuel. The system includes a combination hydraulic-pneumatic cylinder receiving pneumatic pressure from a suitable source, the cylinder communicating hydraulically with a hydraulic actuator for the main shut-off valve. The system provides for testing of the shut-off valve by actuating the valve through a portion of its full travel, thus confirming that the valve is free. This is accomplished by shutting off the pneumatic pressure to one side of the hydraulic-pneumatic cylinder, and opening the hydraulic line between the cylinder and the actuator. Thus, hydraulic pressure from the actuator can bleed to the cylinder, allowing the actuator to move to the extent of the limiting spring and/or pneumatic pressure to the opposite side of the cylinder. | 05-30-2013 |
20130152668 | METHODS FOR DETERMINING WETTABILITY ALTERATION - A protocol for determining the effect of water composition on surface alteration is described using simple and less preparation sensitive, brine/oil and rock/brine/air systems when compared to conventional rock/brine/oil measurement methods. A model glass/brine/oil system is described and it is demonstrated that experimental measurements of contact angle obtained using a conventional approach agree well with the contact angles predicted using the proposed protocol. | 06-20-2013 |
20130152669 | HOSE TESTER INTENSIFIER - This disclosure relates generally to systems and methods for testing hoses, and also to a configuration for an intensifier for increasing the pressure and temperature of oil within the hoses to be tested. | 06-20-2013 |
20130213119 | SAFETY SYSTEM - A safety system for testing high-pressure devices comprising an explosion-proof safety housing; a high-pressure pneumatics testing equipment located within the housing; a closeable access opening in the housing for inserting a high-pressure device for testing within the housing; a device located within the housing for coupling the high-pressure pneumatics testing equipment to the high-pressure device for testing; a control panel located outside the housing; and a device linking the high-pressure pneumatics testing equipment to the control panel for operating the high-pressure pneumatics testing equipment within the safety housing from the control panel. | 08-22-2013 |
20130213120 | APPARATUS FOR AND A METHOD OF CHARACTERISING MECHANICAL PROPERTIES OF A SAMPLE - The present disclosure provides an apparatus for characterising mechanical properties of a sample. The apparatus comprises a structure for supporting the sample and applying a first pressure in a first direction to the sample and an actuator for modulating the first pressure. The apparatus also comprises a pressure applicator containing a liquid and arranged to apply a second pressure to the sample in a second direction that is transversal to the first direction. Further, the apparatus comprises a pore pressure applicator arranged to apply a flow of a fluid through a porous sample such that a pore pressure is applied to the porous sample. In addition, the apparatus comprises a sensor for sensing a change in the sample in response to a change in a pressure experienced by the sample. | 08-22-2013 |
20130228005 | DIAGNOSTIC METHOD FOR POPPET VALVES AND MEASURING DEVICE FOR CARRYING OUT SAID METHOD - The invention relates to diagnostic methods according to the preamble of the equivalent claims | 09-05-2013 |
20130269418 | METHOD FOR MONITORING AN SCR SYSTEM - A method for detecting whether an injector with a valve controlled by a PWM signal of an SCR system is at least partially clogged, the system including a pump, or a positive-displacement pump, driven by a motor and pressure of which is controlled by a controller that continuously measures the pressure and/or another parameter characteristic of energy transmitted by the motor to the pump. According to the method, during normal operation of the SCR system, specific portions of one of the measurements are compared with equivalent portions stored in a memory. | 10-17-2013 |
20130269419 | SENSOR DEVICE FOR DETECTING A FLOW PROPERTY OF A FLUID MEDIUM - A sensor device for detecting at least one flow property of a fluid medium. The sensor device includes at least one sensor housing, in which at least one electronic module having at least one flow sensor for detecting the flow property is accommodated. The electronic module is at least partially accommodated in at least one electronic space. Furthermore, at least one pressure sensor and at least one humidity sensor are accommodated inside the sensor housing. The pressure sensor and also the humidity sensor are at least partially accommodated in at least one sensor space, which is designed separately from the electronic space. | 10-17-2013 |
20130276516 | ACTUATOR PREDICTIVE SYSTEM - An actuator system includes a piston-cylinder arrangement including a piston that is movable with respect to a cylinder. A first flow path is in fluid communication with the piston-cylinder arrangement and a second flow path is in fluid communication with the piston-cylinder arrangement. A control system is operable to fluidly connect the first flow path to a source of high-pressure fluid and to connect the second flow path to a drain to move the piston in a first direction. A pressure sensor is fluidly connected to the first flow path and is operable to measure sufficient pressure data during the movement of the piston to generate a pressure versus time curve. The control system is operable to compare the generated pressure versus time curve to a known standard pressure versus time curve stored in the control system to determine the condition of the piston-cylinder arrangement. | 10-24-2013 |
20130319084 | Method and Apparatus of Flush Pump Feature for Portable Liquid Purifying Filter - A flush pump feature on a liquid purifying filter includes a segment of flexible tubing containing a small bulb pump is described. Two check valves are positioned upstream and downstream of the bulb pump which then terminates with a simple manually operated open/closed valve. The addition of this flush pump feature enables the filter unit to be easily purged of air at first use and also will make the filter easier to clean and maintain without the need to remove it from a hydration carrier. In addition, the flush bulb feature can also be used to perform a simple visual integrity test of filter while out in a remote location and also can be used to effectively remove bulk water from the filter for lighter storage when not in use which also minimizes freeze related damage when used in a cold environment. | 12-05-2013 |
20130340503 | Pressure Monitor Optimizaiton Of Fluid Path Utilization - A device comprising a pressure monitor and a control means that receives a signal representing measured pressure at the pressure monitor and controls the controllable elements of a fluid system is utilized to monitor a fluid system for error conditions, to optimize operations and to diagnose the fluid system. By following a testing protocol that selectively enables parts of the system, the control means narrows the list of possible failing components. Comparing the measured pressure against normal pressures allows the device to identify error conditions. Determining the volume of fluid being transported and controlling the duration of the flow optimizes operation of the fluid system. | 12-26-2013 |
20140033798 | INTEGRATED SAFETY AND MOTION CONTROL TESTING DEVICE - In accordance with some implementations of the described invention, a testing device is provided which includes a safety shield having one or more motion control cam tracks, wherein the cam tracks are configured to receive a cam follower that is connected to a mounting member onto which is mounted one or more testing modules. The testing modules perform specific functions for testing a sample product. The mounting member is moved within the safety shield as the cam follower tracks within the motion control cam tracks. In such implementations, the mounting member is further connected to two or more hydraulic cylinders or other actuators which are configured to move the mounting member to various positions within an x-axis and a y-axis. The integrated safety and motion control features of the safety shield provide precise, repeatable movement of the mounting member while preventing injuring to a user. Other implementations are also described. | 02-06-2014 |
20140033799 | METHOD AND APPARATUS FOR THE REMOTE NONDESTRUCTIVE EVALUATION OF AN OBJECT - A method and apparatus for the remote nondestructive evaluation of an object such as a wind turbine blade involves applying mechanical and/or thermal stress to the object and then scanning the object using long-range thermographic and/or laser interferometric imaging. The laser interferometric imaging is preferably performed by a long range shearography camera capable of imaging deformation derivatives at long distances coupled with a blade stressing mechanism incorporating either thermal or internal blade pressurization for the purpose of detecting remotely and at high speed, changes in the structural integrity of an installed wind turbine blade. | 02-06-2014 |
20140053632 | SCANNING PROBE WITH TWIN-NANOPORE OR A-SINGLE-NANOPORE FOR SENSING BIOMOLECULES - A mechanism is provided for sensing molecules. A twin-nanopore probe includes a first channel and a second channel. A first pressure-controlled reservoir is connected to the first channel to generate a positive pressure. A second pressure-controlled reservoir is connected to the second channel to generate a negative pressure. A container includes ionic solvent with molecules, and a tip of the twin-nanopore probe is submerged in the container of the ionic fluid with the molecules. The first channel, the second channel, the first pressure-controlled reservoir, and the second pressure-controlled reservoir are filled with the ionic fluid. The first pressure-controlled reservoir drives the ionic fluid out of the first channel and the second pressure-controlled reservoir draws in the ionic fluid with the molecules and solvent through the second channel. A flow of ionic current in the twin-nanopore probe is measured to differentiate the molecules that flow through the second channel. | 02-27-2014 |
20140069172 | Hydrostatic Test Tool and Method of Use - Hydrostatic testing tool and methods for testing a test article, such as a hose or container having an external threaded aperture. The preferred testing tool includes a housing, a piston and a collet body having a plurality of collet segments collectively forming a cylindrical inner perimeter having a variable diameter, each collet segment having a threaded surface on the inner perimeter such that the piston can selectively actuate the collet body to vary the diameter of the inner perimeter. In preferred embodiments, the hydrostatic testing tool utilizes a handle assembly that is arranged and configured such that only one hand is needed to operate the hydrostatic testing tool. | 03-13-2014 |
20140076029 | LOAD-CONTROLLED ACCELERATED WEAR TESTING SYSTEM FOR HEART VALVE PROSTHESES AND OTHER CARDIOVASCULAR DEVICES - A load-controlled accelerated wear testing system to test cardiovascular prostheses that enables a user to tune pulse waveform by adjusting the output loading pressure of a linear motor driving the testing system. A portion of the testing system is open to the atmosphere during testing, allowing a relatively lower threshold pressure necessary to drive fluid across the prosthesis during testing. The contemplated tester can be set up in an array of multiple testers each capable of individual tuning and data-collection without undesirably cross-talking. Its novel feature of single-block construction out of a transparent material also allows direct visualization of the prosthesis during testing. | 03-20-2014 |
20140096593 | SYSTEM AND METHOD FOR RAPID MEASUREMENT OF THE AIR VOID DISTRIBUTION OF FRESH CONCRETE - According to an embodiment, there is provided herein a method of determining the air void distribution in a sample of fresh concrete. One embodiment of the invention determines a parameter related to air void distribution by applying a known pressure to a fresh concrete sample, measuring a first value representative of the volume under compression, releases at least a portion of the pressure, reapplies the same pressure to the sample, measures a second value representative of the volume under the second compression, and uses differential between the first and second values to estimate a parameter related to the air void distribution. | 04-10-2014 |
20140109650 | DISSOLVED GAS CONTENT MEASUREMENT APPARATUS AND LIQUID TREATMENT APPARATUS - A dissolved gas content measurement apparatus, which measures dissolved gas content in a liquid, includes: a flow path which includes a flow path resistance; a liquid containing chamber which communicates with the flow path; a pressure changing unit which changes inner pressure of the liquid containing chamber; a measurement unit which measures a pressure vibration cycle of the liquid, which is caused when the pressure changing unit operates, in a state where the liquid is contained in the flow path and the liquid containing chamber; and an obtaining unit which obtains the dissolved gas content based on the cycle. | 04-24-2014 |
20140109651 | Fatigue testing system for prosthetic devices - A fatigue testing system provides simultaneous cycle testing for a plurality of prosthetic devices under simulated physiological loading conditions. A plurality of sample holders containing test samples of prosthetic devices is positioned between a distribution chamber and a return fluid chamber to form an integrated test chamber. A reciprocating linear drive motor operates a rolling bellows diaphragm to cyclically pressurize fluid within the test chamber and drive the pressurized fluid through the prosthetic devices being tested. The test chamber defines a return flow conduit in fluid communication with each of the sample holders, the return fluid chamber, and the distribution chamber. Compliance chambers and throttle valves associated with each of the sample holders regulate the pressure gradient and back pressure across the prosthetic devices being tested. | 04-24-2014 |
20140130576 | SYSTEM AND METHOD FOR MONITORING CONDITION OF AT LEAST ONE NOZZLE - A two- or three-phase mixture is sprayed using at least one nozzle which has associated therewith at least one structure-borne sound sensor for detecting a sound power level signal in the region of the nozzle and also at least one gas and/or liquid meter for detecting a volumetric flow of gas and/or liquid directed through the nozzle. | 05-15-2014 |
20140144210 | PNEUMATIC TIRE - A pneumatic tire includes: one fastener among a pair of mechanical fasteners that are separated into two in a region of a range from a bead tip to the maximum width position of a tire at a tire inner surface; and an electronic circuit device with another fastener that is to be engaged with the one fastener, the electronic circuit device being secured to the tire inner surface by fitting the two fasteners. In the pneumatic tire with such a configuration, even in the case where the electronic circuit device is mounted on the tire inner surface and liquid such as puncture repair liquid is injected in the tire at puncture, there is no possibility of damaging the electronic circuit device due to adhesion of the liquid to the electronic circuit device such as an air pressure sensor. | 05-29-2014 |
20140150530 | METHOD OF ENHANCING THE DETECTABILITY OF A HEIGHT CHANGE WITH AN AIR PRESSURE SENSOR AND A SENSOR UNIT FOR DETERMINING A HEIGHT CHANGE - A sensor unit ( | 06-05-2014 |
20140157873 | TESTING APPARATUS FOR AN OUTER HOUSING OF A PUMP AND METHOD FOR THE TESTING OF AN OUTER HOUSING OF A PUMP - Disclosed is a testing apparatus for an outer housing of a pump, wherein the testing apparatus includes a separation element; a first and a second closure element, wherein the first and second closure element respectively close an axial end of the outer housing in a sealing manner; a middle pressure line which is arranged in the first or the second closure element; and a bounding element, wherein the bounding element closes the outlet outside of the outer housing, and wherein a high pressure line is arranged in the bounding element. The separation element is configured and arranged in the outer housing such that the separation element bounds the outlet of the outer housing and the outer housing is divided into a first pressure region and a second pressure region, wherein the first pressure region and the second pressure region are configured as pressure regions independent from one another. | 06-12-2014 |
20140238109 | FLEXIBLE CONTACT ARRANGEMENT FOR HOSE ASSEMBLY - An integrated hose assembly, as well as a monitoring assembly and method of its use are disclosed. The integrated hose assembly includes a hose assembly with a hose having a first conductive layer electrically connected to a nipple and a second conductive layer electrically connected to a socket. The first and second conductive layers are separated by an insulating layer. The integrated hose assembly further includes a monitoring assembly that includes a housing rotatably mounted around at least a portion of the hose assembly, a first flexibly resilient conductive lead seated within the housing and electrically contacting a first outer surface of the hose assembly such that the first flexibly resilient conductive lead is electrically connected to a nipple, and a second flexibly resilient conductive lead seated within the housing and electrically contacting a second outer surface of the hose assembly such that the second flexibly resilient conductive lead is electrically connected to a socket. The monitoring assembly includes a monitoring circuit electrically connected to the first flexibly resilient conductive lead and the second flexibly resilient conductive lead. | 08-28-2014 |
20140290341 | Detection of a Compromised Flow Line in a Laboratory Instrument - Provided herein are systems and methods for detecting a compromised flow line in a laboratory instrument. In one embodiment, for example, the system includes: (1) a wash station in fluid communication with a sample probe; (2) a fluid line coupled to the wash station to withdraw fluid from the wash station and deliver the fluid to a waste tank; and (3) a vacuum transducer, coupled to the fluid line, to measure vacuum pressure per unit time within the fluid line. The vacuum pressure per unit time is then used to detect a compromised flow line (e.g., a clog, occlusion, opening, etc. in the flow line). | 10-02-2014 |
20140298891 | DETECTING BLOOD PATH DISRUPTION IN EXTRACORPREAL BLOOD PROCESSING - A device monitors a blood path from a blood vessel access of a human subject through an extracorporeal blood processing apparatus and back to the blood vessel access. A pumping device in the blood path is operable to pump blood through the blood path from the blood withdrawal device to the blood return device. The monitoring device obtains pressure data from a pressure sensor arranged upstream of the pumping device in the blood path, and processes the pressure data for detection of a disruption of the blood path downstream of the pumping device, e.g. caused by VND (Venous Needle Dislodgement). The disruption is detected by evaluating presence/absence of cross-talk pulses at the pressure sensor, where the cross-talk pulses originate from one or more pulse generators in the extracorporeal blood processing apparatus and have propagated on a propagation path in a direction downstream of the pumping device through the blood return device, the blood vessel access and the blood withdrawal device to the pressure sensor. | 10-09-2014 |
20140326050 | PRESSURE TEST CONTAINMENT VESSEL - A portable containment vessel to perform a pressure test to a test specimen includes a base skid, a ballistic outer enclosure connected to the base skid and comprising a plurality of walls, a door, and a lock to maintain the door in a closed position, a sample tray configured to support the test specimen, wherein the sample tray is operable through a doorway of the ballistic outer enclosure between a retracted position and an extended position, a containment fluid to surround the test specimen while a pressurized test fluid is applied to the test specimen, and a sensor to indicate a failure of the pressure test. | 11-06-2014 |
20150007637 | METHOD AND APPARATUS FOR TESTING LOAD-BEARING CAPACITY - In an embodiment, a hydraulic jack is provided having a first portion and a second portion. The first portion attached to a first section of a structure and the second portion attached to a second section of the structure. When a pressurized fluid is forced between the first portion and the second portion, a load is transferred to the first section and the second section by the pressure of the fluid on the first portion and the second portion. The first section and the second section are forced apart by the load, thus creating or enlarging at least one void in the structure. The pressurized fluid fills or partially fills one or more of the at least one void, thereby increasing the surface area effectively normal to the direction of the load in contact with the pressurized fluid. | 01-08-2015 |
20150013432 | Method of Monitoring Wear in a Diaphragm Valve Using Pressure Detection - A system for detecting wear in a flush valve includes at least one pressure sensor adapted to measure a water pressure within the flush valve and at least one microprocessor in communication with the at least one pressure sensor. The at least one microprocessor is configured to determine the water pressure within the flush valve measured by the at least one pressure sensor at or after a predetermined time following operation of the flush valve that is equal to or exceeding a known time required to reseal the flush valve during normal operation, compare the determined water pressure with a pressure value sufficient to reseal the flush valve during normal operation, and determine if the flush valve is worn based at least partially on the comparison. A method and apparatus is also disclosed. | 01-15-2015 |
20150040643 | APPARATUS AND METHOD FOR TESTING A CLIMATE CONTROLLED VEHICLE SEAT - A climate controlled seat test apparatus is provided. The test apparatus may have a pump arrangement configured to alter a pressure within a vicinity of a climate controlled portion of a vehicle seat. A controller may be programmed to detect airflow obstructions or losses within the climate controlled portion of the seat. The climate controlled portion may include a blower motor. The controller may detect airflow obstructions and/or losses based on a change in current consumed by the blower motor caused by the pump arrangement altering the pressure within the vicinity of the climate controlled portion. | 02-12-2015 |
20150040644 | Fatigue testing system for prosthetic devices - A fatigue testing system provides simultaneous cycle testing for a plurality of prosthetic devices under simulated physiological loading conditions. A plurality of sample holders containing test samples of prosthetic devices is positioned between a distribution chamber and a return fluid chamber to form an integrated test chamber. A reciprocating linear drive motor operates a rolling bellows diaphragm to cyclically pressurize fluid within the test chamber and drive the pressurized fluid through the prosthetic devices being tested. The test chamber defines a return flow conduit in fluid communication with each of the sample holders, the return fluid chamber, and the distribution chamber. Compliance chambers and throttle valves associated with each of the sample holders regulate the pressure gradient and back pressure across the prosthetic devices being tested. | 02-12-2015 |
20150052977 | APPARATUS, SYSTEM AND METHOD FOR MEASURING RESISTANCE OF AN INHALER - An apparatus, a closed-loop system and method for measuring the resistance of inhalation systems and/or devices are disclosed. | 02-26-2015 |
20150068284 | Semi-Opened Hydrodynamic Testing Device Having Reverse Pumping Return Unit - The present invention is aimed to improve the conventional plane-opened hydrodynamic testing device, one or more than one reverse pumping return units ( | 03-12-2015 |
20150090003 | POSRV PERFORMANCE EVALUATION TEST APPARATUS AND CONTROL SYSTEM OF THE SAME - Disclosed are a pilot operated safety and relief valve (POSRV) performance evaluation test apparatus, which can test performance evaluation of a POSRV in a structurally stable state, and cope with various sizes of a lift cylinder or a spring-loaded pilot valve, and a control system of the POSRV performance evaluation test apparatus, which can prevent an inside of the lift cylinder from being suddenly pressed and thus damaged and at the same time more precisely evaluate the performance of the POSRV. | 04-02-2015 |
20150090004 | Electrical Conductor and Method of Making Same - An electrical conductor includes an electrically non-conductive plate, an electrically conductive pin extending through the plate, and a frame member fitted around an outer edge of the plate. The frame member is configured to pre-load the plate with a compressive stress. In particular, the frame member may pre-load the plate with the compressive stress that is sufficiently high enough such that a sum of the compressive stress, tensile stress, and shear stress components generated in the plate under high-pressure conditions is compressive overall. | 04-02-2015 |
20150128684 | HEART VALVE TESTING APPARATUS AND METHODS - Methods and apparatus for accelerated wear testing of prosthetic heart valves apply non-sinusoidal pressure waveforms. The waveforms may maintain a threshold reverse pressure for a desired duration while limiting a peak reverse pressure. Apparatus may include a fluid impeller such as a bellows or a piston driven by an actuator having a position controlled by a motion control system. The apparatus may include a pressure control system comprising one or more bypass channels and bypass valves controlling a resistance of the bypass channels to fluid flow. The bypass valves may be controlled in real time. | 05-14-2015 |
20150300861 | DEVICE FOR FLOW MEASUREMENT IN HOSE AND/OR PLASTIC PIPE SYSTEMS - The present invention relates to a device for installation into a hose and/or plastic pipe system and mounting of flow measurement sensors which comprises a plastic flow part as a hollow body with a centrally arranged and deformable region with a rectangular cross section. The present invention further relates to the use of the abovementioned device as well as to a method of flow measurement using the device. | 10-22-2015 |
20150300863 | METHOD OF DETERMINING AN INTERNAL VOLUME OF A FILTER OR BAG DEVICE, COMPUTER PROGRAM PRODUCT AND A TESTING APPARATUS FOR PERFORMING THE METHOD - A method of determining an internal volume (V) of a filter or bag device includes pressurizing the device to a first pressure (p | 10-22-2015 |
20150308914 | Hydrotesting and Mothballing Composition and Method of using Combination Products for Multifunctional Water Treatment - This invention relates to a composition, comprising
| 10-29-2015 |
20150315908 | DEVICE FOR SAMPLING FLUID UNDER PRESSURE FOR GEOLOGICAL SITE DEVELOPMENT MONITORING - The invention is a device for sampling fluids under pressure from a well which comprises a chamber for retaining the fluid within a sample chamber ( | 11-05-2015 |
20150330960 | METHOD AND ARRANGEMENT FOR DETERMINING A FUEL QUALITY - In a method and an arrangement for determining a fuel quality of a fuel for a combustion engine fuel is conveyed from a low pressure fuel tank to a high-pressure volume, and injected into at least one cylinder of the combustion engine. A control valve is provided for controlling directly or indirectly the amount of fuel injected into the at least one cylinder. An actual value of a timing signal of the control valve is compared to a reference value of the timing signal of the control valve and a fuel quality parameter is derived from a difference between the actual value and the reference value of the timing signal of the control valve and/or that a fuel quality parameter is derived from a gradient of the pressure increase during a build-up phase of the pressure in the high-pressure volume compared to a reference value of the gradient of the pressure increase in the high-pressure volume. | 11-19-2015 |
20150337524 | SYSTEM, METHOD, AND APPARATUS FOR MONITORING WEAR IN A FLUSH VALVE USING PRESSURE DETECTION - An apparatus for detecting wear in a flush valve includes at least one programmed controller. The flush valve comprises at least one pressure sensor and a valve element, and operates when an internal pressure causes the valve element to open. The controller is programmed to record at least one water pressure detected within the flush valve with the at least one pressure sensor after at least one operation of the flush valve, record a water pressure detected within the flush valve after a subsequent operation of the flush valve, and determine if the flush valve is faulty based at least partially on a comparison between the at least one water pressure detected after the at least one operation of the flush valve and the water pressure detected after the subsequent operation of the flush valve. | 11-26-2015 |
20150338329 | BULK MODULUS MEASUREMENT AND FLUID DEGRADATION ANALYSIS - An apparatus and method to analyze fluid degradation in a closed system is disclosed. The method includes collection of a sample fluid from the closed system. The sample fluid collected is maintained at a sample fluid pressure, which is substantially equivalent to a pressure of the closed system. Thereafter, a change of a volume of the sample fluid is caused, which generates a change in the sample fluid pressure. A series of sample fluid pressures and volumes of the sample fluid are taken. Next, a bulk modulus of the sample fluid is determined. The bulk modulus of the sample fluid is compared with a baseline bulk modulus. Lastly, the method involves generation of a communication when the bulk modulus of the sample fluid breaches a tolerance. | 11-26-2015 |
20150346173 | TOTAL PRESSURE AND TOTAL TEMPERATURE MEASUREMENT IN WET GAS CONDITION - The present probes are miniaturized, total pressure and total temperature, probes able to measure in wet gas conditions, two phase flow, inside pipes or compressor. When measuring in wet gas conditions, the probe measures accurately with a defined amount of liquid phase. Differently from standard probes, such probes are able to generate a gas expansion on the external side of the cup. This guarantees the appropriate purging of the liquid fraction of the flow from the cup, letting the total pressure measurement of the gas. The total temperature probe, beside the purging of the liquid collected, has a miniaturized cup in order to protect the measuring element from the direct impact of the liquid droplets. This permits to measure the total temperature of the gas, without influence of the liquid fraction of the flow. | 12-03-2015 |
20150362352 | CHEMICAL ANALYZER - A chemical analyzer includes a slide transport mechanism having a slide track adapted to hold a plurality of reagent test slides, a sample metering device, an incubator formed as a part of the slide transport mechanism to precisely maintain the temperature of the reagent test slides, a slide ejector mechanism to remove the slides from the slide transport mechanism, a sample preparation station, which includes a centrifuge, and associated electronics and software. The slide transport mechanism holds a plurality of trapezoidally-shaped reagent test slides about its circumference, which slides are loaded onto the transport mechanism by the slide inserter mechanism. The slide transport mechanism positions the reagent test slides under the sample metering device, which device deposits a predetermined volume of sample onto each slide. The slide transport mechanism also carries the slides above a reflectometer. After testing has been completed, the slide ejector mechanism automatically removes the reagent test slides from the slide transport mechanism. | 12-17-2015 |
20150369690 | INSPECTION SYSTEM AND INSPECTION METHOD - An inspection method for inspecting the water resistance of an electronic device is provided, including providing a vacuum generator, using the vacuum generator to pump air out of the electronic device, stopping the pumping of air out of the electronic device when the air pressure in the electronic device is less than a predetermined pressure value, measuring the air pressure in the electronic device as a first pressure value after the pumping of air out of the electronic device has been stopped for a predetermined time, calculating the pressure difference D by subtracting a second pressure value from the predetermined pressure value, calculating the pressure difference d by subtracting the second pressure value from the first pressure value, and determining whether the electronic device is waterproof or not according to the pressure differences D and d. | 12-24-2015 |
20160001113 | Method and Device for the Testing of Fire Extinguishing Systems - An installation for testing open fire extinguishing systems includes a smoke and/or mist generator and a connecting conduit suitable and dedicated for being connected to a fire fighting system. A method for testing of fire extinguishing systems has the following steps performed in any suitable order: a) providing an installation for the generation of smoke and/or mist, b) connecting a conduit of the installation to a conduit of a first section of a preferably open fire extinguishing system, c) opening a valve which provides a connection between the first section of the fire fighting system and the connecting conduit of the installation, d) turning on the smoke and/or mist generator, such that, by the exiting of the smoke and/or mist, the spray heads of the first section of the fire extinguishing system can be inspected on their openness, e) repeating steps b-d for any further section of the fire extinguishing system. | 01-07-2016 |
20160003705 | ACOUSTIC LINER DAMAGE DETECTOR - A damage detector for an acoustic liner sandwich of an internal cellular structure between a whole skin and a perforated skin comprises a cup shaped body the open end of which maintains sealing engagement with the perforated skin of the liner and a vacuum line connected to the body and a pressure gauge so that a loss of vacuum registered on the gauge indicates damage to the internal structure. The sealing engagement is achieved by locating a flexible annulus in a mating recess in the open end of the cup shaped body where the width of the annulus is between one and two maximum widths of the cells of the internal structure. | 01-07-2016 |
20160003723 | HOSE KINK RESISTANCT TESTING DEVICE - A device and methods for testing and quantifying the kink resistance of a hose. The device has the ability to simultaneously test a plurality of hoses at equal amounts of twist or torque while water or other fluid is pumped through the hoses. The device can monitor one or more of the flow rate of fluid through a hose, fluid backpressure from a pressure source, torque and degrees of hose twist. | 01-07-2016 |
20160010799 | METHOD FOR PERFORMING A PRESSURE TEST ON A TANK AND TANK FILLING APPARATUS | 01-14-2016 |
20160018375 | System and Method for Non-Invasively and Non-Destructively Authenticating Bottled Beverages - In one embodiment, authentication of a beverage is performed by forming an airtight seal with a bottle that contains the beverage, the bottle being sealed with a closure, applying a vacuum to the bottle to draw a sample from the closure that includes traces of the beverage, collecting the sample over time as the vacuum is applied to the closure, and performing testing on the collected sample. | 01-21-2016 |
20160091462 | Measuring A Dew Point - A sensor including a vibrating wire is used to measure a dew point of a fluid. | 03-31-2016 |
20160116388 | MEASURING TENSILE STRENGTH OF TIGHT ROCK USING ELECTROMAGNETIC HEATING - A method for determining the tensile strength of a rock sample comprising the steps of obtaining the rock sample, measuring a water content of the rock sample through a water measurement method, determining a matrix bulk modulus of the rock sample, wherein the matrix bulk modulus is determined through a matrix modulus method, heating the rock sample with electromagnetic energy such that the electromagnetic energy heats the water content in the rock sample from an initial temperature, wherein heating the water content causes a pore-water pressure of the rock sample to increase, detecting a break in the rock sample with a sensor, wherein the increase in the pore-water pressure causes the rock sample to break, wherein the break occurs at a break time, at a break temperature; and calculating the pore-water pressure through the water content, the matrix bulk modulus, and the break temperature of the water content. | 04-28-2016 |
20160123836 | MEASURING SYSTEM WITH A PRESSURE DEVICE AS WELL AS METHOD FOR MONITORING AND/OR CHECKING SUCH A PRESSURE DEVICE - Method for monitoring and/or checking a pressure device having a lumen surrounded by a wall for conveying and/or storing a fluid. For such purpose, the method comprises a step of registering a strain, of the wall, by means of a strain gage, respectively a strain sensor formed therewith, affixed outwardly on the wall, for ascertaining a strain value representing the strain of the wall, as well as a step of using the strain value for ascertaining damage to the wall, as a result of plastic deformation of the wall and/or as a result of wear of the wall. A measuring system of the invention comprises supplementally to the pressure device at least one strain sensor affixed on a wall segment of the wall for producing a strain signal dependent on a time variable strain, of the wall segment as well as a transmitter electronics electrically coupled with the strain sensor. The transmitter electronics is adapted to receive the strain signal as well as with the application of the strain signal to ascertain damage to the wall. | 05-05-2016 |
20160123846 | VENTILATOR-ENDOTRACHEAL TUBE-LUNG BENCHTOP MODEL - Disclosed herein is a ventilator text fixture comprising a ventilator port that connects to a ventilator through a breathing circuit; where the ventilator delivers air through the ventilator port to a ventilator test fixture at a rate and pressure that can be controlled by a user to simulate inhalation; an input port; where the input port is in fluid communication with the ventilator port; where the input port permits additional simulated secretions or test liquids to be pumped into the ventilator text fixture; one or more bent supports; a liquid reservoir; where the liquid reservoir is operative to hold test fluids; and one or more tubes; where the one or more tubes are in fluid communication with the ventilator port and the input port via the liquid reservoir; and where the one or more bent supports are operative to mimic an anatomy of the trachea. | 05-05-2016 |
20160131563 | PRESSURE-PULSATED FATIGUE TEST AND SPECIMEN DESIGN - A method to test for fatigue in a test sample is disclosed. The method includes providing a specimen as the test sample. The specimen has a shoulder portion, a tubular sidewall that defines a bore, and an undercut wall segment. The sidewall includes a first thickness, which is greater than a second thickness of undercut wall segment. The method further includes providing a fixture that includes an insert and a clamp to retain the specimen, positioning the bore of the specimen substantially about the insert, and retaining the shoulder portion of the specimen by use of the clamp. Next, the method includes generating a cyclic loading within the bore by hydraulic pulsation between a first predetermined pressure and a second predetermined pressure, at a predetermined frequency. The test is carried through by maintaining and recording the cyclic loading until the specimen fails by fracture of the undercut wall segment. | 05-12-2016 |
20160131628 | METHOD OF CLAY STABILIZATION ANALYSIS - A method of evaluating stabilization fluids for use in a subterranean formation having a clay composition is disclosed. The method features providing a plurality of replicant core samples representative of the composition of a subterranean formation. A plurality of stabilization fluids are introduced to the plurality of replicant core sample such that an eluted mixture is extracted from a second end of each replicant core sample. Afterwards, at least one property of the eluted mixture from each replicant core sample is determined. | 05-12-2016 |
20160178494 | HIGH PRESSURE AND TEMPERATURE VALVE | 06-23-2016 |
20160252420 | METHOD AND ASSEMBLY FOR INSPECTING ENGINE COMPONENT | 09-01-2016 |
20160377517 | AIRCRAFT STRENGTH TESTING APPARATUS AND AIRCRAFT STRENGTH TESTING METHOD - To provide an aircraft strength testing apparatus that, using a curved specimen, can produce a desired stress safely and quickly by reliably applying an internal pressure, and moreover allows any resulting damage to be reliably observed. A testing apparatus | 12-29-2016 |
20190145199 | FILTRATION AND TESTING DEVICE | 05-16-2019 |