Lock for sliding windows and doors

Details Lock for sliding windows and doors Lock for sliding windows and doors

1975-12-19

1977-04-12

Mitchell, James C.

Closure fasteners

Portable

49449, 292251, 292DIG46, E05C 1918

Patent

active

040171051

ABSTRACT:
The present invention is directed to a lock detachably engaged in a hole in the frame of a sliding window or door with an element on the lock engaging against the window or door to prevent the window or door from being slid from its closed position toward an open position. The lock includes a double lead thread for fast action. An arm on the lock for engagement with the window can be positioned in either of two vertically spaced reduced diameter portions on the lock shaft.

REFERENCES:
patent: 2256100 (1941-09-01), Miegela
patent: 3233500 (1966-02-01), Devellier
patent: 3622190 (1971-11-01), Mohun

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