Movable or removable closures – With means mounting closure for reciprocation – With latch or lock
Patent
1975-12-11
1977-04-05
Caun, Peter M.
Movable or removable closures
With means mounting closure for reciprocation
With latch or lock
E05D 1308
Patent
active
040153673
ABSTRACT:
A window positioner adapted to hold a window in an open position includes a frictional engaging member having novel biasing means and bias releasing means whereby as the window is moved upwardly, the frictional force is minimized to allow ease of movement of the window. The frictional force is sufficient to maintain and hold the window in a desired open position. The positioner includes a pair of cooperative engaging members adapted to frictionally engage a rail formed on the window jamb. One of the members is movable relative to the other to shift toward and frictionally engage the rail when the window is in open position. The novel biasing means includes an elongated tapered channel formed in a housing supporting the members which operates to shift the engaging means toward and away from the rail with movement of the window sash between raised and lowered positions.
REFERENCES:
patent: 2492896 (1949-12-01), Schwartzmann
patent: 2526170 (1950-10-01), Steingruber
patent: 2673113 (1954-03-01), Giordano
patent: 3501867 (1970-03-01), Scott
Caun Peter M.
The Citation Companies, Inc.
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