Counterbalance lock mechanism for a window assembly

Details Counterbalance lock mechanism for a window assembly Counterbalance lock mechanism for a window assembly

1982-09-29

1984-05-08

Downey, Kenneth

Movable or removable closures

Mounted for optional movements

Pivot mounted on sliding member; e.g., slide-stile

49446, 49453, E05D 1522

Patent

active

044466544

ABSTRACT:
An improved counterbalance lock mechanism for a window assembly which includes a manually turned lock pin fitted within a stationary housing member located in the window jamb. The lock pin may be rotated into a first position subjecting a slide block to the influence of the mechanism and a second position which isolates the slide block from the counterbalancing effect.

REFERENCES:
patent: 528333 (1894-10-01), Massalski
patent: 895162 (1908-08-01), Cooper
patent: 3387408 (1968-06-01), Narculli
patent: 4079549 (1978-03-01), Wood

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