| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 073540110 | Orifice, nozzle, or extrusion means | 9 |
| 20140216141 | Piezo Actuated Fluid Dispenser Fluid Characterization - A technique, including a system and a method, for measuring a fluid property using a piezo-actuated fluid dispenser, is disclosed. The technique includes generating a pressure wave in a channel in the piezo-actuated fluid dispenser using a piezo element, detecting, using the piezo element, a residual pressure oscillation in the channel caused by the generating, obtaining a resonance frequency of the pressure oscillation, and determining, using the resonance frequency, the fluid property. | 08-07-2014 |
| 073540130 | By time interval of travel or flow rate measuring | 1 |
| 20140345369 | System and Method for Measuring Viscosity Using Particle Transit Time in Resonant Microfluidic Channels - A method for measuring a the viscosity of a fluid in a microchannel including steps of introducing a fluid containing particles to the microchannel, causing the fluid to flow through the microchannel by a applying a pressure drop, measuring a transit time of one or more particles through the microchannel, determining the flow rate from the particle transit times and the known volume of the microchannel, and determining the viscosity of the fluid from the flow rate and pressure drop. | 11-27-2014 |
| 073540140 | By force, pressure, or displacement measuring | 7 |
| 20090090172 | Viscosity measurement - A micro-fluidic device and methods for measuring one or more rheologic properties of a fluid. The micro-fluidic device includes a substrate and at least one cover bonded to a surface of the substrate with a fluid channel formed in at least one of the cover or the substrate. Further, the micro-fluidic device includes a first differential pressure gauge that can have a first differential pressure sensor in fluid communication with both a first pressure site and a second pressure site. Further still, the micro-fluidic device includes the first pressure site and the second pressure site that can be spaced apart by a first section of the fluid channel. Also, the micro-fluidic device includes a data processor communicatively coupled to the first differential pressure sensor, so as to receive data generated by the first differential pressure sensor. | 04-09-2009 |
| 20110252872 | METHOD FOR ESTIMATING VISCOSITY - A method for estimating the viscosity of a liquid in an aspirating or dispensing probe, includes: measuring a reference pressure which is the pressure inside a metering tip when no dispense or aspirate is occurring (P | 10-20-2011 |
| 20120096929 | PORTABLE VISCOMETER - A portable viscometer includes a pump mechanism which cooperates with a positive displacement sample container referred to as a positive displacement pipette, for dispensing, at a known flow rate, a sample of liquid for which viscosity is desired to be determined. The dispensed liquid flows through a flow through miniature viscosity sensor having at least two pressure sensors which measure the pressure drop of the liquid as it flows through a rectangular flow channel, the pressure drop at the known flow rate being proportional to the viscosity. A controller controls operation of the viscometer and processes sensor data, and the resulting measurements of viscosity can be displayed on a display. The positive displacement pipette is removably positioned in the viscometer so that it can be removed from the viscometer when a viscosity test is completed and replaced with another positive displacement pipette containing another liquid to be tested. | 04-26-2012 |
| 20120152000 | METHODS AND SYSTEMS FOR CHARACTERIZING LCM PARTICLE PLUGGING AND RHEOLOGY IN REAL TIME - Methods and systems for characterizing drilling fluids laden with LCM (Lost Circulation Material) and other solid materials are disclosed. A test cell for analyzing a fluid is provided with a first conical inner portion and an axial positioning device positioned along an axis of the test cell. A first conical plug is coupled to the axial positioning device and is movable in and out of the first conical inner portion along the axis of the test cell. A fluid inlet is positioned at a first location on the test cell and a fluid outlet at a second location. | 06-21-2012 |
| 20130125627 | RHEOMETRY APPARATUS - Rheometry apparatus comprises a block of substantially rigid material having an external surface and at least a first internal flow channel, the first internal flow channel being arranged inside the block and substantially in a plane and the block further comprising a plurality of holes, each hole communicating with the first internal flow channel at a respective position along the first internal flow channel and extending from the respective position to said external surface so as to provide access to the first internal flow channel from the external surface, the plurality of holes comprising a first hole communicating with a first said position, for connection to pumping means to drive fluid flow along said first internal flow channel, a second hole communicating with a second position and in which a sensor may be located to measure a property of fluid at the second position, and a third hole communicating with a third position and in which a sensor may be located to measure a property of fluid at the third position. | 05-23-2013 |
| 20160195461 | VEHICULAR LIQUID STORAGE SYSTEM, MOTOR VEHICLE COMPRISING SAID SYSTEM AND METHOD FOR ASSESSING A QUALITY OF A LIQUID THEREIN | 07-07-2016 |
| 20160202162 | A METHOD AND DEVICE FOR A LIQUID PROCESSING SYSTEM | 07-14-2016 |
