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Class Information
Number: 33/366.14
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Level or plumb, terrestrial gravitation responsive > Electrically actuated signal or indicator > With pulse or digital processing circuit component
Description: Subject matter including circuitry having means for controlling the indicator in order to process a portion of a signal in the form of abrupt variations of an electrical signal level.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7325321 |
Method and device for monitoring the alignment of a measuring instrument, and measuring instrument |
Feb. 5, 2008 |
| 7182148 |
Tool with motion and orientation indicators |
Feb. 27, 2007 |
| 6349477 |
Self adjusting inclinometer |
Feb. 26, 2002 |
| 5930907 |
Uniaxial horizontal sensor |
Aug. 3, 1999 |
| 5784794 |
Sensing device |
Jul. 28, 1998 |
| 5761818 |
Digital inclinometer |
Jun. 9, 1998 |
| 5703484 |
Roll independent variable inductance inclinometer |
Dec. 30, 1997 |
| 5428902 |
Inclinometer sensing circuitry and operation |
Jul. 4, 1995 |
| 5428219 |
Fiber optic inclination detector system having a weighted sphere with reference points |
Jun. 27, 1995 |
| 5416977 |
Pitch sensor system |
May. 23, 1995 |
| 5376925 |
Motion and direction sensors |
Dec. 27, 1994 |
| 5313713 |
Electronic level with display scale and audible tone scale |
May. 24, 1994 |
| 5237753 |
Capacitive gravity sensor and inclinometer |
Aug. 24, 1993 |
| 5191713 |
Electronic tilt measuring system |
Mar. 9, 1993 |
| 5174033 |
Angle sensor for a steerable boring tool |
Dec. 29, 1992 |
| 5172481 |
Electronic inclinometer |
Dec. 22, 1992 |
| 5159761 |
Electronic level indicator |
Nov. 3, 1992 |
| 5148018 |
Laser beam levelling device |
Sep. 15, 1992 |
| 5094004 |
Railroad track gager/leveler/linear measurer |
Mar. 10, 1992 |
| 5072615 |
Apparatus and method for gauging the amount of fuel in a vehicle fuel tank subject to tilt |
Dec. 17, 1991 |
| 5056237 |
Electronic indicating device for coaxially aligning a pair of rotary members |
Oct. 15, 1991 |
| 5038137 |
Sleep posture monitor and alarm system |
Aug. 6, 1991 |
| 5031330 |
Electronic boresight |
Jul. 16, 1991 |
| 5027522 |
Electronic level indicator |
Jul. 2, 1991 |
| 5012588 |
Self-recording readout system for surface measurement device |
May. 7, 1991 |
| 4994741 |
Magnetic motion sensing device for sensing inclination and swaying |
Feb. 19, 1991 |
| 4942668 |
Digital inclinometer |
Jul. 24, 1990 |
| 4922620 |
Device for determining the inclination of a plane with respect to theoretical horizontal plane |
May. 8, 1990 |
| 4912662 |
Inclinometer |
Mar. 27, 1990 |
| 4878297 |
Hydrostatic level and elevation measuring device |
Nov. 7, 1989 |
| 4858331 |
Method and apparatus for measurement of caster, king-pin-inclination, and camber on motor vehicles |
Aug. 22, 1989 |
| 4747216 |
Clinometer/accelerometer and method |
May. 31, 1988 |
| 4716534 |
Microprocessor based level and angle finder |
Dec. 29, 1987 |
| 4694584 |
Reduced volume digital inclinometer |
Sep. 22, 1987 |
| 4656750 |
Heading sensor |
Apr. 14, 1987 |
| 4606133 |
High resolution digital inclinometer |
Aug. 19, 1986 |
| 4606132 |
Digital electronic inclination gauge |
Aug. 19, 1986 |
| 4586150 |
Electronic measuring device |
Apr. 29, 1986 |
| 4561299 |
Apparatus for detecting changes in inclination or acceleration |
Dec. 31, 1985 |
| 4557056 |
Electronic angle indicator |
Dec. 10, 1985 |
| 4556799 |
Motion sensing apparatus with variable threshold |
Dec. 3, 1985 |
| 4551921 |
Apparatus for measuring the gradient or inclination of a surface or of a line |
Nov. 12, 1985 |
| 4528760 |
Clinometer |
Jul. 16, 1985 |
| 4503622 |
Precision inclinometer with digital numerical readout |
Mar. 12, 1985 |
| 4492029 |
Inclinometer |
Jan. 8, 1985 |
| 4486844 |
Dual axis inclination measuring apparatus and method |
Dec. 4, 1984 |
| 4473960 |
Surface profile measuring device |
Oct. 2, 1984 |
| 4471534 |
Remote reading compass with 360 degree roll capability |
Sep. 18, 1984 |
| 4468864 |
Tilt meter |
Sep. 4, 1984 |
| 4467527 |
Digital head-out level |
Aug. 28, 1984 |
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