Class / Patent application number | Description | Number of patent applications / Date published |
073540430 | With detail of a pressure or a temperature regulating means | 8 |
20090113996 | SYSTEM AND METHOD FOR MEASURING LIQUID VISCOSITY IN A FLUID DELIVERY SYSTEM - The present invention includes systems and methods for determining the viscosity of a fluid within a fluid flow path. Such method may comprise flowing fluid through the fluid flow path and past a fixed flow restriction therein. The method may also comprise first sensing of a fluid pressure within the fluid flow path at a selected location upstream of the flow restriction. The method may also include limiting fluid flow in the fluid flow path upstream of such selected location. The method may further comprise second sensing of a fluid pressure within the fluid flow path at such selected location after such limiting. Such method includes determining the viscosity of the fluid based, at least in part, on any pressure difference from such first and second sensing. | 05-07-2009 |
20100005866 | VISCOMETER SYSTEM UTILIZING AN OPTICAL FLOW CELL - A viscometer system to determine the viscosity of a fluid utilizes an existing flow cell, which maintains a calibrated constriction that is defined by a predetermined constant value K is disclosed. The viscometer system is adapted for use with the flow cell and includes a pair of pressure transducers with one at the input of the flow cell and another at the outlet of the flow cell. During operation, particles within the fluid pass through the flow cell, whereby the positional change of the particles over a predetermined period of time allows the system to calculate the flow rate of the fluid. The system also identifies the change in pressure of the fluid as it passes through the flow cell, such that the pressure change, flow rate, and the constant value K are processed to calculate the viscosity of the fluid being analyzed. | 01-14-2010 |
20110072890 | DEVICE FOR AUTOMATICALLY MEASURING VISCOSITY OF LIQUID - A device for automatically taking out a sample liquid contained in a reservoir and measuring the viscosity of the liquid is described herein. In one embodiment, the device includes a base body and a transferring part provided on the stage of the base body for taking the sample liquid out of the reservoir and supplying the sample liquid to a viscosity measuring part. The viscosity measuring part is provided on the stage for measuring the viscosity of the sample liquid supplied from the transferring part. The device also includes a control part for controlling operations of the transferring part and the viscosity measuring part. Additionally, the device includes a display part for displaying the results measured by the viscosity measuring part. | 03-31-2011 |
20110154888 | ANALYSIS DEVICE - The present invention relates to an analysis apparatus | 06-30-2011 |
20120216602 | Pressure Monitor Optimization 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. | 08-30-2012 |
20130019663 | Measuring process of dynamic viscosity of heavy live crude from the reservoir pressure up to atmospheric pressure, including bubble point pressure, based on an electromagnetic viscometer - The object of the present invention is to provide a process for experimental determination of heavy live crude oil dynamic viscosities reliable at a constant temperature (from ambient temperature to 463 K) and pressures from 68.9 MPa to the atmospheric pressure, including the dynamic viscosity at the bubble point pressure and by below of this point, based on a simple, reliable and accurate apparatus. The apparatus used in the present invention is based on an electromagnetic concept, only using a mobile element (piston) through a fluid at a constant force. The time required for the piston to travel a fixed distance is related exactly to the dynamic viscosity of the fluid contained in a measuring chamber. When the fluid contained in the inner part of the measuring chamber is more viscous, the piston displacement will be slower. | 01-24-2013 |
20140250983 | Viscosity Measurement of Liquids at Subambient Temperatures - An apparatus and method is shown for determining the pumpability limit, freeze point and/or pour point of liquids, particularly fuels, at sub-ambient temperatures. A sample is placed in a viscometer which viscometer is rapidly cooled by a chiller. During cooling, after some measurements of temperature and viscosity, further temperatures and viscosity are approximated using the least squares method, which temperature and viscosity are subsequently measured to determine the pumpability limit. Continuation of the method will also give the freeze point and pour point of the sample being tested. | 09-11-2014 |
20160054214 | SYSTEM AND METHOD FOR ASSESSING RHEOLOGICAL PROPERTIES OF GREASE - A system for investigating rheological properties of grease, the system including grease sample preparation arrangement for preparing a grease sample with a predetermined quantity of grease, at least two sample holder plates for holding the grease sample by sandwiching the grease sample between the sample holder plates, wherein at least one of the sample holder plates is transparent, and a loading system for generating a predetermined force acting on the grease sample sandwiched between the sample holder plates by pressing on the sample holder plates such that a spot formed by the grease sample on the sample holder plates is expanded. The loading system can include at least one transparent portion enabling a continuous observation of the expansion of the spot while the predetermined force is acting on the grease sample. | 02-25-2016 |