Means for preventing air leakage through window sash interlock

Details Means for preventing air leakage through window sash interlock Means for preventing air leakage through window sash interlock

1988-02-05

1989-02-07

Dorner, Kenneth J.

Movable or removable closures

With means mounting closure for reciprocation

With plug, flap, or bridger for meeting rail

49453, 49485, E05D 1516

Patent

active

048023086

ABSTRACT:
A means for preventing air leakage through the sealing means existing between a pair of relatively movable sash elements in the area where the sealing zone is normally interrupted to permit planar movement of the sash perpendicular to its normal direction of movement to allow removal of the sash relative to a supporting window frame. The novel structure includes a resilient member which is manually shiftable in a direction perpendicular to the plane of the window sash when removal of the sash is desired.

REFERENCES:
patent: 2763344 (1956-09-01), Peterson
patent: 2952883 (1960-09-01), Kessler et al.
patent: 3114177 (1963-12-01), Simard et al.
patent: 3208111 (1965-09-01), Grossman
patent: 3325944 (1967-06-01), Crain
patent: 3538642 (1970-10-01), Fredricksen
patent: 3698883 (1972-10-01), DiFazio
patent: 4327524 (1982-05-01), Vanderlaan

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