Lockable latch for tiltable double hung windows

Details Lockable latch for tiltable double hung windows Lockable latch for tiltable double hung windows

1986-10-14

1987-06-02

Wolfe, Robert L.

Closure fasteners

Bolts

Sliding

292175, E05C 104

Patent

active

046697659

ABSTRACT:
A lockable window latch for double hung windows which pivots for cleaning includes an outer shell, a latching member which is slidable therein and a locking member which is rotatably received in the latching member and projects through an opening in the front wall of the shell. The locking element has an elongated control portion or handle which, when aligned transverse to the length of the latch permits latching and unlatching. When the handle is turned 90.degree. so as to be aligned with the length of the latch, one of its ends abuts against an internal wall surface of the shell thereby preventing unlatching.

REFERENCES:
patent: 26518 (1859-12-01), Page
patent: 137211 (1873-03-01), Jones
patent: 472088 (1892-04-01), Walker
patent: 742881 (1903-11-01), Little
patent: 1187751 (1916-06-01), Lotz
patent: 1689101 (1928-10-01), Beck
patent: 3937503 (1976-02-01), Harris
patent: 4475311 (1984-10-01), Gibson

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