Sliding window lock

Details Sliding window lock Sliding window lock

1984-02-15

1987-01-13

Wolfe, Robert L.

Closure fasteners

Bolts

Sliding and rotary

70 95, 292 67, 292DIG15, 292DIG46, E05C 502

Patent

active

046359761

ABSTRACT:
A lock assembly for a horizontal sliding sashless window is provided. The lock assembly comprises a block having anchor means, and pivotal attachment means. The block has a vertical lock surface formed to block the leading edge of the sliding pane when the sliding pane is in closed position, with clearance to permit pivotal movement of the lock surface away from the sliding pane. The pivotal attachment means attaches the block to the sill of the window at a position forwardly offset from the lock surface of the block, and provides for limited vertical movement of the block away from the sill. The anchor means is selectably engageable and releasable by the combination of pivoting the block and by motion away from the sill. The lift and twist motion of the lock assembly does not limit the height of the block or the depth of the anchor means.

REFERENCES:
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patent: 897105 (1908-08-01), Ingebo
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patent: 3357732 (1967-12-01), Seal
patent: 3378293 (1968-04-01), Silk
patent: 4017105 (1977-04-01), Paxton

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