Closure locking mechanisms

Details Closure locking mechanisms Closure locking mechanisms

1992-01-31

1993-03-16

Moore, Richard E.

Closure fasteners

Bolts

Multiple

292DIG60, E05C 904

Patent

active

051938600

ABSTRACT:
A locking mechanism for a closure such as a window comprises a body containing a gear wheel that is rotated by a handle. This rotation is converted to a locking action by actuating members which are provided with a helical thread which engages helical teeth on the gear wheel. Rotation in one sense throws the members out of the body to perform a locking action and reverse rotation retracts the members into the body in an unlocking action. The position of the members can be altered simply by screwing the members into and out of the body.

REFERENCES:
patent: 1203394 (1916-10-01), Ottinger
patent: 1378622 (1921-05-01), Sarbij
patent: 2532630 (1950-12-01), Lickteig
patent: 2787154 (1957-04-01), Wesberry
patent: 2943514 (1960-07-01), Golde
patent: 3063305 (1962-11-01), Ensinger
patent: 3174742 (1965-03-01), Stelzer
patent: 4919005 (1990-04-01), Schleicher

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