Electrical transmission or interconnection systems – Switching systems – Switch actuation
Patent
1975-07-03
1977-01-11
Smith, Jr., David
Electrical transmission or interconnection systems
Switching systems
Switch actuation
315360, H01H 700
Patent
active
040029255
ABSTRACT:
A timer and manual on-off switch forms an assembly having the appearance and function of a conventional wall-mounted light switch. The timer and manual on-off switch preferably includes a toggle arm projecting from the wall, the arm being movable to a stable power turn-on position where the lights controlled thereby are turned on, a stable power turn-off position where the lights involved are turned off, an unstable timer on setting position which establishes as the time the lights involved are to be turned on when the arm is set for automatic operation the time the toggle arm is momentarily moved thereto, and an unstable timer off setting position which establishes as the time when the lights involved are automatically turned off the time the toggle arm is momentarily moved thereto. The automatic timer is set into operation by moving the toggle arm to a normal unstable neutral position when it is held in such position by shifting the toggle arm laterally into a self-holding position.
REFERENCES:
patent: 3391305 (1968-07-01), Bradwin et al.
patent: 3940660 (1976-02-01), Edwards
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