Class / Patent application number | Description | Number of patent applications / Date published |
073490800 | Clamp, plug, or sealing feature | 26 |
20080209986 | APPARATUS AND METHOD FOR TESTING OR ISOLATING A PIPE SEGMENT WITH MAGNETICALLY ACTUATED SEALING MEANS - An apparatus for isolating and/or testing a section of a pipe includes a generally annular body having, on each end, a boss. A resilient member such as an O-ring is provided between the annular body and each boss. A series of electromagnets are provided for forcing or urging the bosses towards each other thereby resulting in deformation of the resilient members resulting in a seal being formed between the apparatus and the pipe. A method for isolating and/or testing a pipe segment is also provided. | 09-04-2008 |
20080223113 | Method for Pressure Testing a Threaded Component | 09-18-2008 |
20080314126 | METHOD FOR TREATING VERTICAL TUBES IN A CHEMICAL REACTOR - 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 |
20090044602 | APPARATUS FOR DETECTING SEALABILITY OF LITHIUM ION CELL - An apparatus for detecting the sealability of a lithium ion cell comprises a container which is filled with a detecting liquid, a clamp and a high-pressure-gas joint member. The clamp can carry a lithium ion cell to be detected and put it into said container. One end of the high-pressure-gas joint member is connected to an injecting hole of the lithium ion cell to be detected and the other end is connected to a high-pressure gas supply. The detecting apparatus also comprises an elevator which can move the lithium ion cell into and out the detecting liquid within the container. | 02-19-2009 |
20090084165 | NOZZLE TESTING APPARATUS AND METHOD - A method for testing the integrity of welds used to secure a nozzle to a vessel and the like comprises forming a sealed space within the nozzle by providing a blind against the flange and a sealing plate within the vessel and filling the space with a pressurizing fluid. The sealing plate is not biased against the flange. As such, the method of the invention simulates normally occurring axial expansion stresses within the nozzle thereby providing a more accurate test. The apparatus of the invention comprises a blind flange for sealing the flange face and a back plate for positioning against the inner surface of the vessel. The apparatus includes a biasing means for urging the back plate against the vessel wall. In one embodiment, the biasing means includes a front plate located outside of the vessel and connected to the back plate. In another embodiment, the biasing means comprises a plurality of magnets for engaging the vessel wall. | 04-02-2009 |
20090193877 | Pipeline Pressure Tool - An apparatus and method for pressure testing one or more sections of a pipeline are provided. In at least one embodiment, the apparatus includes a first high pressure seal and a second high pressure seal adapted to isolate a test volume located within a section of the pipeline between the first and second high pressure seals. The apparatus also includes at least one flexible member connecting the first high pressure seal to the second high pressure seal, the at least one flexible member adapted to permit movement of the first high pressure seal relative to the second high pressure seal, allowing the apparatus to travel through a curvature in the pipeline. | 08-06-2009 |
20090211341 | Leakage Detection Based on Fluid Property Changes - A leakage detection system is described, with the leakage detection system comprising a fluid chamber ( | 08-27-2009 |
20100043537 | TOOL FOR HYDRO-TESTING A NOZZLE - There is described a novel tool and method for the isolation and pressure-testing of connections, such as welds, between a vessel and a nozzle or branch pipe. The nozzle testing tool comprises an improved seal that expands into sealing contact as testing pressure is increased. The tool can also be easily adjusted in order to accommodate variations in nozzle configuration. | 02-25-2010 |
20100083738 | Test Plug and Method for Monitoring Downstream Conditions - A test plug assembly ( | 04-08-2010 |
20100089130 | Method of testing a nozzle connection - A nozzle testing method involves testing a nozzle connection via pressurized fluid. The nozzle is subjected to both circumferential and axial tension the magnitude of which is approximately equal to that achieved in a full system pressure test. The method isolates and pressure tests a nozzle in a vessel or pipe by using a device that is inserted from the outside of the nozzle to be tested, although for some applications a restraining head may be placed from the inside of the vessel. The test devices supporting the method are capable of reacting the axial pressure thrust force with a structural member or fluid pressure bearing on the external surface of a vessel or alternatively internal to the vessel or pipe bearing on the opposite wall of the pipe or vessel. The stresses applied to the nozzle neck and attaching weld are primary stresses due to the applied pressure. | 04-15-2010 |
20100186484 | Apparatus and Method for Isolating or Testing a Pipe Segment with Axial Reinforcement - An apparatus and method for testing the integrity of a weld securing a flange to the end of a pipe comprises a testing assembly and a reinforcement assembly. The testing assembly comprises a first sealing means positioned within the pipe and a second sealing means secured against the flange face to form a sealed region within the pipe with the region overlapping the weld. The reinforcement assembly comprises a circumferential clamp secured to the outer wall of the pipe and an anchor plate positioned opposite the flange. The first sealing means is connected to the anchor plate to prevent relative movement there-between. The anchor plate is connected to the clamp to prevent relative movement there-between. The weld test procedure comprises installing the apparatus, filling and pressurizing the sealed space and monitoring the pressure created therein. The reinforcement assembly prevents the first sealing member from being separated and allows a weld test to be performed without a compressive force being applied on the weld. The invention also provides a reinforced tool and method for isolating an end segment of a pipe. | 07-29-2010 |
20100281955 | MICROTUBE AND RELATED METHODS THEREFOR - Sample processing devices having collapsible, flexible bodies are disclosed. The flexible microtube sampling devices are utilizable in pressure mediated, pressure cycling procedures. Externally applied pressure on the flexible microtube sample processing devices allow buckling thereof and transfer of the applied pressure to the sample contained therein. | 11-11-2010 |
20100326174 | EXTERNAL HYDROSTATIC TESTER - An external hydrostatic tester for testing welds on a pipe includes a tester body having a first portion and a second portion, each of the first and second portions having a first side, a second side, and an inner surface. The first and second portions are movable between a released position and a connected position. A testing cavity on the inner surface of first portion and second portion has a port for supplying pressurized fluid and is connected to a pressure sensor. Seals positioned on the inner surface of the tester body seal against a pipe and an adjustable compression member compresses the seals against the pipe at selected locations. | 12-30-2010 |
20110048112 | NOZZLE TESTING APPARATUS AND METHOD - A method for testing the integrity of welds used to secure a nozzle to a vessel and the like comprises forming a sealed space within the nozzle by providing a blind against the flange and a sealing plate within the vessel and filling the space with a pressurizing fluid. The sealing plate is not biased against the flange. As such, the method of the invention simulates normally occurring axial expansion stresses within the nozzle thereby providing a more accurate test. The apparatus of the invention comprises a blind flange for sealing the flange face and a back plate for positioning against the inner surface of the vessel. The apparatus includes a biasing means for urging the back plate against the vessel wall. In one embodiment, the biasing means includes a front plate located outside of the vessel and connected to the back plate. In another embodiment, the biasing means comprises a plurality of magnets for engaging the vessel wall. | 03-03-2011 |
20110296901 | Hydrostatic tester - A hydrostatic tester is provided with an elevated test surface allowing tests to be made inside sleeves, pants legs or other hard to reach locations of completed garments. A constant force spring is engaged byway of a straight line clamp to apply pressure and maintain a consistent and constant force on a sandwich seal. A clamping mechanism can be moved to the left or right of test area to provide a clear unobstructed access to position test item. A raised gasket on the test surface prevents hard contact between test surface and seal ring avoiding damage to test items. A blood pressure bulb is used as a pressure source to force water from a reservoir to the test area. A low pressure gauge is positioned for easy viewing to monitor test pressure. | 12-08-2011 |
20120151999 | METHOD FOR ASCERTAINING A FLAP POSITION OF AN EXHAUST GAS HEAT EXCHANGER - A method is provided for ascertaining the setting of an exhaust gas flap, which is situated so it is adjustable in an exhaust system of a motor vehicle, by which a combustion gas flowing through an exhaust tract can alternately be supplied to a heat exchanger branch and/or a bypass branch, a pressure prevailing in the heat exchanger branch and/or in the bypass branch being measured to ascertain the setting of the exhaust gas flap, and a current position of the exhaust gas flap being ascertained by a comparison of the measured pressure to a reference value. | 06-21-2012 |
20120285222 | APPARATUS AND METHOD FOR TESTING FLOAT EQUIPMENT - Apparatus and method for testing float equipment used in the construction of wellbores for the hydrocarbon exploration and production industry. The apparatus has a housing and an opening for receiving an item of float equipment. A seal arrangement is configured to seal with the item of float equipment, such that the housing and seal arrangement together define a test chamber. The test chamber is pressurised to expose at least a part of the item of float equipment in the test chamber to a test pressure. In embodiments of the invention, at least a part of an outside surface and at least a part of the item of float equipment may be simultaneously loaded. The tests performed more closely simulate the conditions to which the equipment is exposed in a wellbore. | 11-15-2012 |
20130160526 | Envelope Seal Verification System and Method - An imperfection in a seal of an envelope can be identified. The envelope is moved laterally, and a positive flow of air is delivered to a leading edge of a top flap of the envelope to separate the top flap from a bottom flap or a side flap of the envelope at the imperfection in the seal of the envelope. Based on the separation of the top flap from the bottom flap or the side flap of the envelope, it can be determined whether the seal has the imperfection. | 06-27-2013 |
20130233058 | REMOTE SEAL PRESSURE MEASUREMENT SYSTEM FOR SUBSEA USE - A remote seal assembly for subsea applications is provided. The assembly includes an upper housing having a fluid coupling for coupling the remote seal to a process fluid pressure measurement device. A lower housing is coupled to the upper housing and has an interface that is configured to mount to a pressure vessel. The lower housing also has a process fluid inlet. An isolation diaphragm is disposed between the upper and lower housings. At least one of the upper housing, lower housing and isolation diaphragm are constructed from a material suitable for immersion in saltwater. In some embodiments, the lower housing has a shoulder disposed about the process fluid inlet and a plurality of self-energizing seals configured to couple the assembly to a venturi flow meter body. A subsea process fluid flow measurement system is also provided that includes a pressure transmitter and at least one subsea remote seal assembly. | 09-12-2013 |
20140083171 | PRESSURE TRANSMITTER WITH FILL TUBE - A pressure transmitter has a pressure sensor, an isolator diaphragm, and a fill tube. Interior passages in the pressure sensor module body are filled with isolator fluid and provide fluid connections. The isolator fluid couples pressure from the first isolator diaphragm assembly to the pressure sensor. A first crimp portion of the fill tube radially narrows into a substantially solid circular cylindrical cross section to form a first primary seal that is resistant to high pressure cycling. | 03-27-2014 |
20140238111 | TUBE CLAMPING DEVICE AND HYDRAULIC PRESSURE TESTER TECHNICAL FIELD - The present invention provides a compact tube clamping device | 08-28-2014 |
20140311223 | INSPECTION APPARATUS, INSPECTION METHOD, AND BATTERY-INSPECTING CHAMBER - An inspection apparatus includes a chamber and a pressurizer. The chamber includes a space portion configured to house at least a sealed portion of a battery, and an opening portion configured to open a partial portion of the battery other than the sealed portion to an atmosphere. The pressurizer is configured to put the space portion into a pressurized state. | 10-23-2014 |
20150040646 | METHOD FOR EVALUATING THE SEALING OF A BIPOLAR STRUCTURE FOR AN ELECTROCHEMICAL GENERATOR - A method for evaluating sealing of a bipolar structure including a sheet-like substrate forming a current collector, and two electrodes in a form of films arranged on opposite surfaces of the substrate, respectively, the method including: placing the bipolar structure in a cavity to define first and second compartments therein, which are separated by the bipolar structure, a periphery of which is sealingly connected to the cavity; circulating a fluid in the first compartment of the cavity toward the second compartment; and evaluating sealing of the bipolar structure from a measurement of difference in pressure of the fluid in the first and second compartments. | 02-12-2015 |
20150143879 | Vacuum Actuated Duct Test Plug with Pressure Test Tube - A vacuum actuated duct test plug with pressure test tube comprising a compressible foam block mounted to an elongate hollow tube and plastic enclosure having an open end wherein a vacuum applied to the open end of the plastic enclosure evacuates air from the enclosure and compresses the block allowing it to be placed into a duct register boot, and expands to create an air tight seal when the vacuum is withdrawn from the enclosure. Pressure behind the plug can be tested at the end of the hollow tube. | 05-28-2015 |
20150369689 | Gripper for Test and Isolation Plugs - A gripper for a test or isolation plug is provided. The gripper includes at least one gripper segment having a pipe or tube confronting surface with a plurality of separate rows of gripper teeth longitudinally-spaced apart on the surface. Each of the separate rows of gripper teeth comprising an alternating array of individual tips and gaps such that each row is serrated along its length. | 12-24-2015 |
20160161360 | DEVICE FOR CHECKING A PRESSURIZED TESTING TOOL FOR A FLUID CIRCUIT OF AN AIRCRAFT - A device for checking at least one pressurized testing tool for a fluid circuit of an aircraft includes at least one tank that includes at least one connection to connect a pressurized gas supply and at least one connection system arranged to connect at least one pressurized testing tool. This device makes it possible to perform preventive checks on pressurized testing tools without having to immobilize an aeroplane on an assembly line. | 06-09-2016 |