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Class Information
Number: 702/52
Name: Data processing: measuring, calibrating, or testing > Measurement system in a specific environment > Mechanical measurement system > Fluid measurement (e.g., mass, pressure, viscosity) > Capacitive sensor
Description: Subject matter wherein the physical property or characteristic of the fluid is determined by measuring capacitance variances of a probe.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7567183 |
Printable sensors for plastic glazing |
Jul. 28, 2009 |
| 7557590 |
Capacitance detection circuit and capacitance detection method |
Jul. 7, 2009 |
| 7542860 |
Method and device for detecting the location of a pulse-type mechanical effect on a system part |
Jun. 2, 2009 |
| 7523006 |
Measurement sensor assembly and method for measuring the quality of a fluid |
Apr. 21, 2009 |
| 7484815 |
Brake device of motorcycle |
Feb. 3, 2009 |
| 7415366 |
Electronic field device with a sensor unit for capacitive level measurement in a container |
Aug. 19, 2008 |
| 7403862 |
Method for operating a process-measuring device |
Jul. 22, 2008 |
| 7167773 |
Process and apparatus for improving and controlling the curing of natural and synthetic moldable compounds |
Jan. 23, 2007 |
| 7079958 |
Method for operating a process-measuring device |
Jul. 18, 2006 |
| 7076464 |
Apparatus, and associated method, for distributing revenue generated pursuant to distribution of content |
Jul. 11, 2006 |
| 7020564 |
Logical volume administration method, the service using the method and the memory medium storing the service |
Mar. 28, 2006 |
| 6920411 |
Method for configuring an operational characteristic of a proximity sensor |
Jul. 19, 2005 |
| 6853928 |
Two-wire electromagnetic flowmeter |
Feb. 8, 2005 |
| 6714876 |
Control system |
Mar. 30, 2004 |
| 6666086 |
Automatic boiler level controller |
Dec. 23, 2003 |
| 6553812 |
Combined oil quality and viscosity sensing system |
Apr. 29, 2003 |
| 6546795 |
Wireless liquid level sensing system and method |
Apr. 15, 2003 |
| 6438500 |
Method and device for detecting the absence of a product in a reservoir |
Aug. 20, 2002 |
| 6338025 |
Data processing system and method to estimate power in mixed dynamic/static CMOS designs |
Jan. 8, 2002 |
| 6293144 |
Method and device for monitoring the consumption of a product, for example a printing ink, using a low-pass filter |
Sep. 25, 2001 |
| 6278381 |
Fault condition protective device for aircraft fuel gauging system |
Aug. 21, 2001 |
| 6171252 |
Pressure sensor with increased sensitivity for use with an implantable medical device |
Jan. 9, 2001 |
| 6101452 |
Method and apparatus for dispensing fluids |
Aug. 8, 2000 |
| 5726908 |
Liquid quantity sensor and method |
Mar. 10, 1998 |
| 5406843 |
Digital liquid level sensing apparatus |
Apr. 18, 1995 |
| 5155482 |
Aircraft fluid vessel testing |
Oct. 13, 1992 |
| 5121632 |
Point level switch |
Jun. 16, 1992 |
| 5051921 |
Method and apparatus for detecting liquid composition and actual liquid level |
Sep. 24, 1991 |
| 4918619 |
Multiplexed junction probe for fuel gaging system and system containing same |
Apr. 17, 1990 |
| 4908783 |
Apparatus and method for determining liquid levels |
Mar. 13, 1990 |
| 4872120 |
Multiplexed junction probe for fuel gaging system and system containing same |
Oct. 3, 1989 |
| 4819483 |
Level indicator control system for use with capacitance probes in tanks containing substances |
Apr. 11, 1989 |
| 4782698 |
Method and apparatus for measuring oil level |
Nov. 8, 1988 |
| 4706203 |
Capacitive gauging method and apparatus |
Nov. 10, 1987 |
| 4590575 |
Dielectric compensated level control system for use in tanks containing substance |
May. 20, 1986 |
| 4589077 |
Liquid level and volume measuring method and apparatus |
May. 13, 1986 |
| 4555941 |
Capacitance-type material level indicator |
Dec. 3, 1985 |
| 4545020 |
Fuel gaging system |
Oct. 1, 1985 |
| 4525792 |
Unidirectional capacitive fluid-gauging systems |
Jun. 25, 1985 |
| 4487066 |
System for sensing and signalling the amount of fuel in a vehicle tank, particularly aircraft tank |
Dec. 11, 1984 |
| 4451894 |
Liquid gaging system multiplexing |
May. 29, 1984 |
| 4441157 |
Test unit for aircraft fuel gaging system |
Apr. 3, 1984 |
| 4399699 |
Electrostatic type fuel measuring device |
Aug. 23, 1983 |
| 4393451 |
Method and apparatus for measuring total liquid volume flow |
Jul. 12, 1983 |
| 4388828 |
Liquid gaging system sensor calibration |
Jun. 21, 1983 |
| 4355363 |
Digital characterization of liquid gaging system sensors |
Oct. 19, 1982 |
| 4352159 |
Liquid gaging system lost sensor recovery |
Sep. 28, 1982 |
| 4349882 |
Liquid level measuring system |
Sep. 14, 1982 |
| 4296472 |
Non-intrusive fluid measuring system |
Oct. 20, 1981 |
| 4258422 |
Liquid gaging system |
Mar. 24, 1981 |
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