Movable or removable closures – Facially opposed primary and auxiliary closure for common... – Auxiliary mounted for movement
Patent
1989-05-23
1990-06-05
Kannan, Philip C.
Movable or removable closures
Facially opposed primary and auxiliary closure for common...
Auxiliary mounted for movement
49349, 49351, E05C 702
Patent
active
049302558
ABSTRACT:
An electric door window assembly incorporating two glass plates of different properties in which the desired one or both plates can be selectively raised. A pair of frames are fixedly mounted on the car door. Two pinions are engaged to and driven by a worm wheel which is in mesh with a motor driven worm. The pinions, each of which engages a toothed element to raise or lower a movable support rail with a glass plate mounted on it, are rotatable by the worm wheel through a pair of clutches, with each clutch being disposed between the worm wheel and a corresponding pinion, and selectively electromagnetically actuated to permit the worm wheel to drive the corresponding pinion in order to raise or lower the desired glass plate.
REFERENCES:
patent: 1167748 (1916-01-01), Greenleaf
patent: 1986700 (1935-01-01), Zimmerman
patent: 2848218 (1958-08-01), Leslie et al.
patent: 4331359 (1982-05-01), Sheldon
patent: 4471251 (1984-09-01), Yamashita
patent: 4554763 (1985-11-01), Dauvergne
patent: 4773697 (1988-09-01), Svensson
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