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US 11,689,083 B2Granted
Gear motors with cable-actuated position sensors
OwnerShaun William Fetherstoninventor
Life of this patent
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Abstract
Cable-actuated position sensors are described that employ multiple block and tackle arrangements to measure displacement of a draw wire or flexible cable. The disclosed sensors are relatively small and inexpensive. The disclosed sensors may also be used as part of a servo motor, or in conjunction with gear motors to provide positional information for operation of the gear motor.
Claims5
A gear motor comprising:
- a gear motor with a motor shaft;
- an output shaft;
- one or more gears coupled to the motor shaft and to the output shaft to cause multiple rotations of the motor shaft to result in a single rotation of the output shaft;
- a cable actuated position sensor coupled to the output shaft, wherein rotation of the output shaft causes a cable of the cable actuated position sensor to be withdrawn from or retracted into the sensor;
- and
- circuitry configured to receive a signal from the cable actuated position sensor.
3 more elements
Dependencies are inferred from the claim text.