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Class Information
Number: 33/346
Name: Geometrical instruments > Indicator of direction of force traversing natural media > With damper or governor for sensor > Fluid
Description: Device wherein the damping means includes a fluid and means on, or actuated by, the direction sensing and/or indicating portion coacting with the fluid.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6708415 |
Magnetic compass structure |
Mar. 23, 2004 |
| 5469631 |
Air bubble free compass and method of manufacturing same |
Nov. 28, 1995 |
| 5469630 |
Gimballed compass device |
Nov. 28, 1995 |
| 5452519 |
Attitude sensor |
Sep. 26, 1995 |
| 5282318 |
Position sensor |
Feb. 1, 1994 |
| 5233759 |
Compensating magnetic compass |
Aug. 10, 1993 |
| 4912662 |
Inclinometer |
Mar. 27, 1990 |
| 4866850 |
Clinometer with rolling liquid conductor |
Sep. 19, 1989 |
| 4747216 |
Clinometer/accelerometer and method |
May. 31, 1988 |
| 4694584 |
Reduced volume digital inclinometer |
Sep. 22, 1987 |
| 4614041 |
Magnetic angular position sensor |
Sep. 30, 1986 |
| 4606133 |
High resolution digital inclinometer |
Aug. 19, 1986 |
| 4597475 |
Universally movable suspension member |
Jul. 1, 1986 |
| 4517749 |
Stable plumb beam optical projector |
May. 21, 1985 |
| 4471534 |
Remote reading compass with 360 degree roll capability |
Sep. 18, 1984 |
| 4453317 |
Magnetic compass |
Jun. 12, 1984 |
| 4451991 |
Vertical indicating method and device |
Jun. 5, 1984 |
| 4375726 |
Gyro compass |
Mar. 8, 1983 |
| 4250627 |
Compass apparatus |
Feb. 17, 1981 |
| 4222278 |
Gyro apparatus using viscous damping device |
Sep. 16, 1980 |
| 4163325 |
Verticality sensors |
Aug. 7, 1979 |
| 4099334 |
Dip angle data transmitter |
Jul. 11, 1978 |
| 4091542 |
Measuring apparatus for determining the position of the roller apron of a continuous casting installation |
May. 30, 1978 |
| 4063366 |
Grade level |
Dec. 20, 1977 |
| 3983636 |
Hydraulic fluidic level control system |
Oct. 5, 1976 |
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