| |
 |
|
Class Information
Number: 73/749
Name: Measuring and testing > Fluid pressure gauge > U-tube liquid column > With electrical readout
Description: Subject matter wherein the displacement of the liquid within the U-shaped tube generates or modifies an electric current, and the value of such current is indicative of the pressure.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7210358 |
Force sensor assembly |
May. 1, 2007 |
| 6889669 |
System and method of managing pressure in a fuel system |
May. 10, 2005 |
| 6626045 |
Pressure measurement device |
Sep. 30, 2003 |
| 6591684 |
Pressure sensor intergrated into an electro-hydraulic control unit |
Jul. 15, 2003 |
| 6557417 |
Method and device for void fraction measurement and adverse output signal mitigation on pressure-base instruments |
May. 6, 2003 |
| 6349602 |
Seat occupant detection apparatus |
Feb. 26, 2002 |
| 6305228 |
Pressure sensor device and suction release apparatus |
Oct. 23, 2001 |
| 6122972 |
Capacitive pressure sensor with moving or shape-changing dielectric |
Sep. 26, 2000 |
| 5902932 |
Force balancing capacitance manometer |
May. 11, 1999 |
| 5760693 |
Vacuum apparatus for semiconductor device |
Jun. 2, 1998 |
| 5636547 |
Liquid level monitoring system having ferrofluid pressure sensor |
Jun. 10, 1997 |
| 5450853 |
Pressure sensor |
Sep. 19, 1995 |
| 5429000 |
Ferrofluid pressure sensor |
Jul. 4, 1995 |
| 5224385 |
Method for obtaining electrical signals correlated with the position of a mass of mercury in instruments and the like |
Jul. 6, 1993 |
| 5138886 |
Electronic manometer |
Aug. 18, 1992 |
| 5111700 |
Method and apparatus for obtaining electrical signals correlated with the position of a mass of mercury in instruments and the like |
May. 12, 1992 |
| 4991404 |
Vacuum pressure monitoring system |
Feb. 12, 1991 |
| 4825700 |
Bi-axial geomaterial test system |
May. 2, 1989 |
| 4782704 |
Mercury manometer |
Nov. 8, 1988 |
| 4739663 |
Acoustically monitored manometer |
Apr. 26, 1988 |
| 4685908 |
Device for detecting increased pressure in pleural cavity |
Aug. 11, 1987 |
| 4650767 |
Respirometer module with replaceable sample chamber |
Mar. 17, 1987 |
| 4554535 |
Method and apparatus for obtaining electrical signals correlated with the position of a mass of mercury in instruments and the like |
Nov. 19, 1985 |
| 4462259 |
Pressure transducer |
Jul. 31, 1984 |
| 4461181 |
Control for sample volume metering apparatus |
Jul. 24, 1984 |
| 4423638 |
Capacitive system for manometric detection and measurement of differential pressures |
Jan. 3, 1984 |
| 4380933 |
Electrical control mercury monometer |
Apr. 26, 1983 |
| 4380932 |
Capacitance manometer differential pressure sensor |
Apr. 26, 1983 |
| 4354389 |
Vapor pressure sensor and flow measuring devices |
Oct. 19, 1982 |
| 4353148 |
Electric pressure switch |
Oct. 12, 1982 |
| 4259975 |
Stock tank gauger-level controller |
Apr. 7, 1981 |
| 4244365 |
Device for use in detecting occlusion in an infusion system |
Jan. 13, 1981 |
| 3943769 |
Electric conductive laminated vessel wall |
Mar. 16, 1976 |
|
|
|
