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Class Information
Number: 33/366.25
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Level or plumb, terrestrial gravitation responsive > Electrically actuated signal or indicator > Having reactive circuit control element (e.g., inductive, capacitive)
Description: Subject matter wherein the control element forms a gravity responsive reactive impedance.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7596876 |
Gravity gradiometer |
Oct. 6, 2009 |
| 7584544 |
Gravity gradiometer |
Sep. 8, 2009 |
| 7581327 |
Gravity gradiometer |
Sep. 1, 2009 |
| 7571547 |
Gravity gradiometer |
Aug. 11, 2009 |
| 7562461 |
Gravity gradiometer |
Jul. 21, 2009 |
| 7562460 |
Gravity gradiometer |
Jul. 21, 2009 |
| 7559149 |
Gravity gradiometer |
Jul. 14, 2009 |
| 7254897 |
Integrated tilt sensor |
Aug. 14, 2007 |
| 6732440 |
Orientation sensor |
May. 11, 2004 |
| 6722049 |
Inclination measurement apparatus |
Apr. 20, 2004 |
| 6571483 |
Orientation sensor |
Jun. 3, 2003 |
| 6505409 |
Inclinometer |
Jan. 14, 2003 |
| 6381860 |
Electrostatic capacitor-type inclination sensor |
May. 7, 2002 |
| 6311406 |
Electrostatic capacitor-type inclination sensor |
Nov. 6, 2001 |
| 6148669 |
Acceleration sensor with a spherical inductance influencing member |
Nov. 21, 2000 |
| 6073355 |
Method for inclination measurement using piezoelectric effect |
Jun. 13, 2000 |
| 5992032 |
Method and apparatus for inclination measurement using piezoelectric effect |
Nov. 30, 1999 |
| 5632093 |
Inductive sensor and method for detecting displacement of a body |
May. 27, 1997 |
| 5469632 |
Capacitive angle sensor employing a vertical cantilever beam |
Nov. 28, 1995 |
| 5457438 |
Antitheft alarm system for motor vehicles |
Oct. 10, 1995 |
| 5261279 |
Inclination sensor |
Nov. 16, 1993 |
| 5148604 |
Micromechanical tilt sensor |
Sep. 22, 1992 |
| 5042158 |
Inclination sensor |
Aug. 27, 1991 |
| 4991301 |
Inductive displacement sensors |
Feb. 12, 1991 |
| 4821423 |
Instrument producing electrical signals in response to acceleration forces |
Apr. 18, 1989 |
| 4811492 |
Cant angle sensor assembly |
Mar. 14, 1989 |
| 4794703 |
Navigational instrument for controlling the stability of a mobile device |
Jan. 3, 1989 |
| 4713890 |
Mislevel sensing device |
Dec. 22, 1987 |
| 4561299 |
Apparatus for detecting changes in inclination or acceleration |
Dec. 31, 1985 |
| 4344235 |
Levitated ball inclinometer |
Aug. 17, 1982 |
| 4027399 |
Positional sensing |
Jun. 7, 1977 |
| 3945128 |
Dynamic vertical angle sensor |
Mar. 23, 1976 |
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