Lock for releasably holding a hinged guard element on a window

Details Lock for releasably holding a hinged guard element on a window Lock for releasably holding a hinged guard element on a window

1984-07-06

1986-10-14

Grosz, Alexander

Closure fasteners

Rigid engaging means

Sliding catch

49 56, 292168, 292246, E05C 112, E05C 1900

Patent

active

046168630

ABSTRACT:
A lock for releasably holding closed a fixed structure like a house or building a hingedly mounted closing element like a window guard, gate or the like characterized by a lock bar for being locked in the closed position from a lock housing that is connectable with the fixed structure and has a latch that is inaccessible by an outsider but that will snap into position about the lock bar to hold it trapped yet releases when pushed from inside the building, the push operating a bell crank that effects the release. The latch includes a trapped, slidable release bar biased to snap into engagement but pushable by the bell crank to release engagement. Specific preferred embodiments are also disclosed.

REFERENCES:
patent: 1259397 (1918-03-01), Hathaway
patent: 1991822 (1935-02-01), Snipes
patent: 2504483 (1950-04-01), Abraham
patent: 2863690 (1958-12-01), Lewin
patent: 4055360 (1977-10-01), Russi
patent: 4208837 (1980-06-01), Black
patent: 4263747 (1981-04-01), Coltrin et al.

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