Communications: electrical – Systems – Timer control
Patent
1976-09-17
1977-12-06
Pitts, Harold I.
Communications: electrical
Systems
Timer control
307141, 3403094, G08B 100
Patent
active
040620077
ABSTRACT:
A solid-state delay timed switching circuit includes a delay timing means for delaying the start of an operational sequence. A function timing means is provided for timing the operational sequence, an alarm timing means for timing an audible alarm at the completion of an operational sequence, a power switching means, a power supply and a power turn-off means to de-energize the power switching means.
REFERENCES:
patent: 3973135 (1976-08-01), Scott
P. R. Mallory & Co. Inc.
Pitts Harold I.
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