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Class Information
Number: 33/366.24
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Level or plumb, terrestrial gravitation responsive > Electrically actuated signal or indicator > Having pendulum sensor
Description: Subject matter wherein the element executes gravity responsive motion about an axis and is supported so as to be free to swing to a position wherein (1) its center of gravity, or (2) its center of bouyancy is utilized to determine the vertical.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7383637 |
Inclination sensor and method of attaching the same |
Jun. 10, 2008 |
| 7380345 |
Portable digital horizontal inclinometer |
Jun. 3, 2008 |
| 7325322 |
Electric park brake inclinometer |
Feb. 5, 2008 |
| 7325327 |
Method and apparatus for measuring angular or linear displacement |
Feb. 5, 2008 |
| 7318283 |
Inclination sensor |
Jan. 15, 2008 |
| 7305771 |
Rotation sensor |
Dec. 11, 2007 |
| 7210242 |
Detection method of lift guide rail perpendicularity and a detector for implementing this method |
May. 1, 2007 |
| 7086165 |
System and method for managing power in an electronic device |
Aug. 8, 2006 |
| 7069662 |
Drill level indicator |
Jul. 4, 2006 |
| 7055255 |
Inclination angle reader and method for using same |
Jun. 6, 2006 |
| 7017701 |
Inclination-measuring device |
Mar. 28, 2006 |
| 6987460 |
Orientation device |
Jan. 17, 2006 |
| 6845564 |
Level monitoring sensor apparatus, solid structure sensor apparatus, and pendulum sensor apparatus |
Jan. 25, 2005 |
| 6836972 |
Electronic level with audible and visual indicators |
Jan. 4, 2005 |
| 6826844 |
Downsized sensor unit with increased accuracy |
Dec. 7, 2004 |
| 6732440 |
Orientation sensor |
May. 11, 2004 |
| 6708416 |
Inclination sensor |
Mar. 23, 2004 |
| 6694631 |
Alignment device utilizing components responsive to gravity |
Feb. 24, 2004 |
| 6664534 |
Tilt sensing device and method for its operation |
Dec. 16, 2003 |
| 6594912 |
Electronic plumb indicator for monopoles, survey poles, global positioning antennas and the like |
Jul. 22, 2003 |
| 6571483 |
Orientation sensor |
Jun. 3, 2003 |
| 6546639 |
Inclination measurement apparatus |
Apr. 15, 2003 |
| 6543147 |
Tilt detector |
Apr. 8, 2003 |
| 6518751 |
Magnetoresistive rollover sensor |
Feb. 11, 2003 |
| 6505409 |
Inclinometer |
Jan. 14, 2003 |
| 6499220 |
Inclination sensor |
Dec. 31, 2002 |
| 6470580 |
Tilt sensor |
Oct. 29, 2002 |
| 6341428 |
Tilt detecting device |
Jan. 29, 2002 |
| 6281456 |
Three-axis gravity switch |
Aug. 28, 2001 |
| 6115929 |
Tilt detecting device |
Sep. 12, 2000 |
| 5673491 |
Crane level indicator device |
Oct. 7, 1997 |
| 5572796 |
Laser beam pendular level |
Nov. 12, 1996 |
| 5406713 |
Apparatus for maintaining a scientific and measuring instrument or the like in a level plane |
Apr. 18, 1995 |
| 5136784 |
Vehicle electronic level measuring and display device |
Aug. 11, 1992 |
| 5134883 |
Pendulum-type accelerometer |
Aug. 4, 1992 |
| 5042158 |
Inclination sensor |
Aug. 27, 1991 |
| 4994741 |
Magnetic motion sensing device for sensing inclination and swaying |
Feb. 19, 1991 |
| 4949467 |
Inclinometer including an apparatus for maintaining a scientific and measuring instrument or the like in a level plane |
Aug. 21, 1990 |
| 4947692 |
Apparatus for detecting positional changes in relation to a vertical reference direction in buildings or in building subsoil |
Aug. 14, 1990 |
| 4943158 |
Sensor controlled leveling device |
Jul. 24, 1990 |
| 4923015 |
Earth mover blade stabilizing apparatus |
May. 8, 1990 |
| 4703315 |
Level indicating device |
Oct. 27, 1987 |
| 4700479 |
Cant angle sensor assembly |
Oct. 20, 1987 |
| 4667413 |
Inclinometers |
May. 26, 1987 |
| 4584778 |
Angle change detector |
Apr. 29, 1986 |
| 4571844 |
Angle change detector |
Feb. 25, 1986 |
| 4565010 |
Electronic signaling level |
Jan. 21, 1986 |
| 4557056 |
Electronic angle indicator |
Dec. 10, 1985 |
| 4422243 |
Dual axis capacitive inclination sensor |
Dec. 27, 1983 |
| 4401888 |
Automatic sensing device for off-horizontal and off-vertical detection |
Aug. 30, 1983 |
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