Sliding window lock

Details Sliding window lock Sliding window lock

1978-03-01

1979-10-23

Frazier, Roy D.

Closure fasteners

Portable

49450, 292343, 292DIG46, E05C 1918, E05C 1754, E05D 1306

Patent

active

041718356

ABSTRACT:
Disclosed herein is a lock suitable for use with sliding type windows which are constrained to ride within trackways. The apparatus comprises a pair of links pivotally connected having tab portions to provide for manipulation of these two links relative to each other and a biasing apparatus which tends to retard the two links from assuming a position in which one link would substantially totally overlie the other link. Further, downwardly extending tabs provide the nesting area for opposed extremities of the biasing spring which is wrapped in a preferred embodiment around the pivoting juncture of the two links and these tabs ride in the trackway or channel of the sliding windows and provide a resistive reaction to unauthorized opening of the window to such an extent that the window can not be opened in the conventional manner.

REFERENCES:
patent: 825013 (1906-07-01), Taylor
patent: 1759707 (1930-05-01), Paddock
patent: 2194641 (1940-03-01), Daniels
patent: 2196726 (1940-04-01), Folsom
patent: 2331150 (1943-10-01), Whiting, Jr.
patent: 2673106 (1954-03-01), Nelson
patent: 3640559 (1972-02-01), Royer

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