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Class Information
Number: 33/366.21
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Level or plumb, terrestrial gravitation responsive > Electrically actuated signal or indicator > Fluent sensor > Having resistive or contact circuit control element
Description: Subject matter wherein the fluid material (1) forms a resistive component of, or (2) completes the indicator controlling electric circuit.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7408626 |
Laser transmitter with thermally induced error compensation and method of transmitter compensation |
Aug. 5, 2008 |
| 7353615 |
Anti-vibration tilt detector |
Apr. 8, 2008 |
| 7100294 |
Method of sensing tilt, tilt sensor, and method of manufacturing same |
Sep. 5, 2006 |
| 7095486 |
Laser transmitter with thermally induced error compensation and method of transmitter compensation |
Aug. 22, 2006 |
| 6987460 |
Orientation device |
Jan. 17, 2006 |
| 6688013 |
Electrolytic-tilt-sensor |
Feb. 10, 2004 |
| 6628373 |
Laser transmitter with thermally induced error compensation and method of transmitter compensation |
Sep. 30, 2003 |
| 6621560 |
Laser transmitter with thermally induced error compensation and method of transmitter compensation |
Sep. 16, 2003 |
| 6400159 |
Orientation sensor especially suitable for use in an underground boring device |
Jun. 4, 2002 |
| 6282804 |
Continuous monitoring inclination sensor |
Sep. 4, 2001 |
| 6249984 |
Electrolytic tilt sensor having a metallic envelope |
Jun. 26, 2001 |
| 6123866 |
Electrolytic solution for clinometric sensor |
Sep. 26, 2000 |
| 6066955 |
Orientation sensor especially suitable for use in an underground boring device |
May. 23, 2000 |
| 6032375 |
Inclination sensor |
Mar. 7, 2000 |
| 5937528 |
Tilt sensor, mask and coat holder |
Aug. 17, 1999 |
| 5511320 |
Angle measurement device employing angle sensor and electronics with lead circuitry integrally formed on a printed circuit board |
Apr. 30, 1996 |
| 5416977 |
Pitch sensor system |
May. 23, 1995 |
| 5390104 |
Adaptive control man-augmentation system for a suspended work station |
Feb. 14, 1995 |
| 5381604 |
Angle measurement device employing angle sensor and electronics integrally formed on a printed circuit board |
Jan. 17, 1995 |
| 5351539 |
Sensor for measuring acceleration and tilt with a bubble level |
Oct. 4, 1994 |
| 5199712 |
Golf swing training apparatus |
Apr. 6, 1993 |
| 5144823 |
Bend angle indicator |
Sep. 8, 1992 |
| 5143208 |
Level sensor |
Sep. 1, 1992 |
| 5038137 |
Sleep posture monitor and alarm system |
Aug. 6, 1991 |
| 5005308 |
Tilt indicator for firearm scopes |
Apr. 9, 1991 |
| 4797661 |
Motion sensing device |
Jan. 10, 1989 |
| 4672753 |
Rotation sensor |
Jun. 16, 1987 |
| 4654977 |
Electronic level |
Apr. 7, 1987 |
| 4574491 |
Level with audio indicator |
Mar. 11, 1986 |
| 4536967 |
Tilt sensor and method of assembly |
Aug. 27, 1985 |
| 4516329 |
Electronic level device |
May. 14, 1985 |
| 4497118 |
Motion and orientation sensor |
Feb. 5, 1985 |
| 4434561 |
Level indicator |
Mar. 6, 1984 |
| 4365421 |
Motion and orientation sensor |
Dec. 28, 1982 |
| 4079521 |
Electrically actuated level |
Mar. 21, 1978 |
| 4028815 |
Temperature compensated toroidal accelerometer |
Jun. 14, 1977 |
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