Double-hung window locking system

Details Double-hung window locking system Double-hung window locking system

1997-05-23

1999-05-11

Stodola, Daniel P.

Movable or removable closures

Mounted for optional movements

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

49460, 49181, 49445, 16193, E05D15/22

Patent

active

059014997

ABSTRACT:
A locking assembly for a double-hung window assembly having a pair of vertical jamb liners, including a shoe slidable in a channel in one liner and operably connected to a sash for sliding movement therewith. A first locking member is rotatably connected to the first shoe, and manually operable means is pivotably connected to the shoe and operatively engageable with the first locking member for effectuating pivoting movement of the first locking member between (a) a limiting position wherein the first locking member engages one side wall of the one slide channel and (b) a releasing position wherein the first locking member is disengaged from the side wall of the slide channel. The first locking member including at least one tooth which engages and grips the side wall of the slide channel with the first locking member in the limiting position. A detent releasably maintains the first locking member in at least one of the limiting position and the releasing position.

REFERENCES:
patent: 3611636 (1971-10-01), Trout
patent: 4922657 (1990-05-01), Foss
patent: 5440837 (1995-08-01), Piltingsrud
patent: 5448857 (1995-09-01), Stormo
patent: 5572828 (1996-11-01), Westfall

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