Movable or removable closures – With means mounting closure for reciprocation – With distinct biasing means for slide or guide
Patent
1994-03-25
1995-09-12
Kannan, Philip C.
Movable or removable closures
With means mounting closure for reciprocation
With distinct biasing means for slide or guide
49434, 49450, 49454, E05D 1516
Patent
active
054488575
ABSTRACT:
An apparatus for selectively securing a window sash to a window frame, including a longitudinally extending jamb liner secured to the frame adjacent one side of the sash, and a movable cam between the frame and the liner for selectively adjusting the spacing therebetween. Frictional locking surfaces are provided between the liner and the sash whereby the cam in a locking configuration biases the liner away from the frame and thereby against the sash to frictionally lock the sash against movement relative to the liner. The liner defines a portion of the track guiding the sash for substantially planar movement and the cam may also be selectively moved to a releasing configuration allowing the liner to sufficiently approach the frame to allow the sash to be cleared from the liner. The cam preferably includes a first set of cam members resiliently secured to the liner at spaced positions along its length, and a second cooperating set of cam members is movable to selectively adjust the overall lateral dimension of the cooperating cam members in the space between the liner and the frame.
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Kannan Philip C.
Truth Hardware Corporation
LandOfFree
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