Latch for pivotal sash window

Details Latch for pivotal sash window Latch for pivotal sash window

1988-03-11

1988-12-20

Dorner, Kenneth J.

Movable or removable closures

Mounted for optional movements

Edgewise retractable bearing acting between closure and...

49449, E05D 1522

Patent

active

047917563

ABSTRACT:
A latch for a pivotal window sash used in a double-hung window assembly. The latch is mounted internally in a sash frame member with its latch bolt protruding from the sash to engage in the guide rail of the main frame jamb of the window assembly. There is a finger manipulative control button external of the sash frame for releasing the bolt from said guide rail so that the window sash can be pivoted. The latch bolt is mounted under spring tension to maintain the bolt normally in a locked position. The several latch parts including the spring are maintained together in assembly as a unit to thereafter be installed in said window sash.

REFERENCES:
patent: 2768852 (1956-10-01), Hicks
patent: 3425164 (1969-02-01), Storlie et al.
patent: 4475311 (1984-10-01), Gibson
patent: 4553353 (1985-11-01), Simpson
patent: 4578903 (1986-04-01), Simpson
patent: 4622778 (1986-11-01), Simpson

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