Operation confirmatory circuit for linear actuator

Details Operation confirmatory circuit for linear actuator Operation confirmatory circuit for linear actuator

1988-10-04

1990-07-31

Ro, Bentsu

Electricity: motive power systems

With signals, meters, recorders or testing devices

318293, 116 28R, B60Q 1100

Patent

active

049452959

ABSTRACT:
A circuit for signaling an operator when a linear actuator, driven by a reversible direct current motor, has reached opposite end positions. Two normally closed series-connected switches which open at the respective positions and diodes, connected across each switch and to each other in opposition, stop the motor when the actuator reaches either position. A third switch and third diode cause a lamp to energize at one of the positions and remain energized until the actuator moves to the other position.

REFERENCES:
patent: 3198907 (1965-08-01), Archer et al.
patent: 3896363 (1975-07-01), Kinsel et al.
patent: 3905435 (1975-09-01), Coronado
patent: 3909691 (1975-09-01), Wilson et al.
patent: 3909692 (1975-09-01), Jungel
patent: 4763219 (1988-08-01), Nakamura
patent: 4766413 (1988-08-01), Reavell

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