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Class Information
Number: 250/231.15
Name: Radiant energy > Photocells; circuits and apparatus > Optical or pre-photocell system > Light valve (e.g., iris diaphragm) > Actuated by dynamic external physical quantity > Shaft angle transducers > Incremental shaft readers; i.e., with means to generate increments of angular shaft rotation > With plural gear driven discs
Description: Subject matter in which the incremental data is generated using more than one circularly shaped element coupled to the rotating shaft by gear drive means.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7435947 |
Apparatus and methods for integrating encoding functions in material placement machines |
Oct. 14, 2008 |
| 7406772 |
Device for measuring the position, the path or the rotational angle of an object |
Aug. 5, 2008 |
| 7199356 |
Absolute angle detecting device |
Apr. 3, 2007 |
| 7173236 |
Rotary electric component including a rotatably supporting case and operation panel using the same |
Feb. 6, 2007 |
| 7145130 |
Rotation detecting device and automobile with the same |
Dec. 5, 2006 |
| 7091474 |
Rotation angle detecting device |
Aug. 15, 2006 |
| 7091473 |
Measuring system for recording angular and linear absolute values |
Aug. 15, 2006 |
| 7087889 |
Rotational angle detecting apparatus and torque detecting apparatus |
Aug. 8, 2006 |
| 7085638 |
Steering angle sensor assembly including reduction gear and logic module |
Aug. 1, 2006 |
| 7060969 |
Rotating machine having rotation sensors |
Jun. 13, 2006 |
| 6972404 |
Optical control device having a controller that controls track movement of a driven member through a drive unit with reflecting regions |
Dec. 6, 2005 |
| 6737638 |
Gear-reduction device, particularly for measuring and transmitting rotary and swivel movements |
May. 18, 2004 |
| 6731571 |
Position detecting and correcting device for timepiece |
May. 4, 2004 |
| 6563109 |
Apparatus for optoelectronically determining power using a light source being of annular design |
May. 13, 2003 |
| 6534762 |
Method and device for detecting position of a rotating control member |
Mar. 18, 2003 |
| 6472657 |
Laser synchronized high-speed shutter for spectroscopic application |
Oct. 29, 2002 |
| 6465772 |
Optical encoder having multiple thumbwheels with integral encoder patterns |
Oct. 15, 2002 |
| 6362469 |
Rotation detector for multi-rotation body having detection window |
Mar. 26, 2002 |
| 6323786 |
Absolute-value encoder device |
Nov. 27, 2001 |
| 6285024 |
Combined torque and angular position sensor |
Sep. 4, 2001 |
| 6255645 |
Method and apparatus for optically measuring drive train backlash |
Jul. 3, 2001 |
| 6232885 |
Electricity meter |
May. 15, 2001 |
| 6130425 |
Rotating detecting device of multi-rotation body |
Oct. 10, 2000 |
| 6031224 |
Position measuring system |
Feb. 29, 2000 |
| 6014130 |
Mouse encoding device |
Jan. 11, 2000 |
| 5907976 |
Apparatus for determining the absolute position of throttle dynamic brake and reverser handles on a locomotive control stand |
Jun. 1, 1999 |
| 5642297 |
Apparatus and method for measuring the kinematic accuracy in machines and mechanisms using absolute encoders |
Jun. 24, 1997 |
| 5640007 |
Optical encoder comprising a plurality of encoder wheels |
Jun. 17, 1997 |
| 5543613 |
Multi-digit fluid flow roller meter |
Aug. 6, 1996 |
| 5457371 |
Binary locally-initializing incremental encoder |
Oct. 10, 1995 |
| 5393201 |
Synchronous rotating apparatus for rotating a plurality of shafts |
Feb. 28, 1995 |
| 5119128 |
Apparatus for generating timing pulses in an electrophotographic printing machine |
Jun. 2, 1992 |
| 5066857 |
Incremental angle encoder having spiral scanning field and multiple discs |
Nov. 19, 1991 |
| 4894533 |
Optical rotary encoder |
Jan. 16, 1990 |
| 4892312 |
Operating device for TV game machine |
Jan. 9, 1990 |
| 4841297 |
Displacement coder |
Jun. 20, 1989 |
| 4680704 |
Optical sensor apparatus and method for remotely monitoring a utility meter or the like |
Jul. 14, 1987 |
| 4670737 |
Method of initializing an optical encoder |
Jun. 2, 1987 |
| 4646084 |
Meter reading methods and apparatus |
Feb. 24, 1987 |
| 4628313 |
Apparatus and method for remotely monitoring a utility meter by use of a liquid crystal display |
Dec. 9, 1986 |
| 4536762 |
Matrix encoder for sensor arrays |
Aug. 20, 1985 |
| 4500870 |
Method and components for remote reading of utility meters |
Feb. 19, 1985 |
| 4489384 |
Electro-optical sensor for watt-hour meter |
Dec. 18, 1984 |
| 4437098 |
Apparatus for electronically reading mechanical meters having non-simultaneously changing digits |
Mar. 13, 1984 |
| 4264897 |
Meter register encoder including electronics providing remote reading capability |
Apr. 28, 1981 |
| 4037219 |
Meter dial encoder for remote meter reading |
Jul. 19, 1977 |
| 4007383 |
Position determining device |
Feb. 8, 1977 |
| 3989943 |
Angularly adjustable optical switch assembly |
Nov. 2, 1976 |
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