Electrical timer-switch

Details Electrical timer-switch Electrical timer-switch

1975-06-13

1977-01-04

Scott, James R.

Electricity: circuit makers and breakers

Retarded

Clock train

200 33R, 200 38D, 200 51R, 174 53, H01H 4300, H01H 900

Patent

active

040015270

ABSTRACT:
An electrical timer-switch has a clock motor which closes and opens a switch, the two contact points of the switch being wired to external contacts which can be plugged into a wall switch receptacle to establish a shunt around the latter switch.

REFERENCES:
patent: 2085624 (1937-06-01), Allen
patent: 2477862 (1949-08-01), Cook
patent: 2938976 (1960-05-01), Wilson
patent: 3548125 (1970-12-01), Banathy
patent: 3582581 (1971-06-01), Hawks
patent: 3728500 (1973-04-01), Ingram
patent: 3889132 (1975-06-01), Vreeland

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