Flexible or portable closure – partition – or panel – Plural and/or with rigid closure – Diverse types
Patent
1993-02-16
1994-04-12
Kannan, Philip C.
Flexible or portable closure, partition, or panel
Plural and/or with rigid closure
Diverse types
49161, 49358, 49361, 49362, 160 28, E06B 332, E05F 1138
Patent
active
053017340
ABSTRACT:
A window assembly is disclosed which provides for automatic raising, lowering and locking of a window unit. The assembly includes a lower window frame having threaded holes in the side members thereof and an upper window frame having a motor mounted thereon. The motor drives a pair of vertical shafts that are threadably engaged within the threaded holes in the side members of the lower frame. Rotation of the vertical shafts causes relative movement of the upper and lower window frames, thereby opening and closing the window unit.
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GEO Ventures
Kannan Philip C.
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