Household freezer door alarm switch having an automatic resettin

Details Household freezer door alarm switch having an automatic resettin Household freezer door alarm switch having an automatic resettin

1975-04-23

1976-12-07

Scott, James R.

Electricity: circuit makers and breakers

Special application

Actuated concurrently with operation or use of art device

200 6182, 200318, H01H 320, H01H 920

Patent

active

039964345

ABSTRACT:
A household freezer alarm system has a door alarm switch having a holding element that is movable to a position for releasably maintaining an actuating plunger of the switch at a deactivated position. At the deactivated position, the freezer can be cleaned, loaded with food, or other freezer door-open operations performed without sounding a door-open alarm. Means is associated with the holding element for automatically moving the holding element from the holding postion to the free position in response to closing the position door for automatically resetting the alarm system.

REFERENCES:
patent: 2238630 (1941-04-01), De Reamer
patent: 2484424 (1949-10-01), Rosing
patent: 2523125 (1950-09-01), Ley
patent: 2592660 (1952-04-01), Crumley
patent: 2810061 (1957-10-01), Serrone
patent: 2828378 (1958-03-01), Rumsey
patent: 2856477 (1958-10-01), Schultz
patent: 3504372 (1970-03-01), Sharples
patent: 3691325 (1972-09-01), Bognar
patent: 3694595 (1972-09-01), Horecky

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