Limit switch mechanism for garage door opener

Details Limit switch mechanism for garage door opener Limit switch mechanism for garage door opener

1993-08-12

1994-04-05

Bonck, Rodney H.

192 clutches and power-stop control

Stop mechanism

Limit stop

49199, 192142R, 318266, H02P 300, E05F 1500, F16D 7100

Patent

active

052996786

ABSTRACT:
An adjustable limit switch mechanism for controlling the operation of an electric motor of a garage door opener over a selected range of movement including a motor driven threaded shaft supporting at least one switch actuator which is adjustably positionable and restrained from rotary movement while being axially translated by rotation of the shaft. A limit switch is mounted adjacent the threaded shaft so as to be actuated as the switch actuator is translated axially on the shaft.

REFERENCES:
patent: 1457367 (1923-06-01), Hubers
patent: 1788302 (1931-01-01), Hummel
patent: 2504018 (1950-04-01), Gibson et al.
patent: 3209090 (1965-09-01), Fry
patent: 3341760 (1967-09-01), Fry
patent: 3474317 (1969-10-01), Delaney
patent: 4131830 (1978-12-01), Lee et al.
patent: 4628636 (1986-12-01), Folger
patent: 4721196 (1988-01-01), Layer et al.
patent: 4838403 (1989-06-01), Layer
patent: 4977788 (1990-12-01), Besemann
IBM Technical Disclosure Bulletin, vol. 28, No. 1, Jun. 1985, p. 133.

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