Combination door lock and electrical switch

Details Combination door lock and electrical switch Combination door lock and electrical switch

1976-11-19

1978-05-30

Myhre, Charles J.

Heat exchange

Combined

70292, 200 6168, 236 1R, F24F 100, E05B 3712, H01H 2706

Patent

active

040918661

ABSTRACT:
A door lock, particularly appropriate for a hotel or motel room, which is effectively operated from either the room side or the corridor side to lock the door closed for security purposes, and from the latter or corridor side, additionally is effective to terminate electrical services within the room, e.g. the air conditioner, to thereby minimize the wasteful use of electricity.

REFERENCES:
patent: 2301290 (1942-11-01), Knight
patent: 2319084 (1943-05-01), Olofson
patent: 2354035 (1944-07-01), Maier
patent: 2637801 (1953-05-01), Kelley et al.
patent: 2679039 (1954-05-01), Koppl
patent: 2752445 (1956-06-01), Navarrete
patent: 3514557 (1970-05-01), Jette, Jr.
patent: 3570285 (1971-03-01), Hawkins
patent: 3802233 (1974-04-01), Riley
patent: 3833899 (1974-09-01), Blosse

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