Flexible or portable closure – partition – or panel – Roll type – Plural roll
Patent
1990-08-20
1991-05-21
Purol, David M.
Flexible or portable closure, partition, or panel
Roll type
Plural roll
160310, 1602681, A47H 500
Patent
active
050167014
ABSTRACT:
A window shade conveyor system for use with a window assembly having parallel frame members supporting a window pane therebetween, the frame members being non-vertically oriented, includes a shade roller rotatably disposed between the frame members at an upper portion of the frame members, the roller carrying a window shade wound thereon and adapted to be unwound to cover the window pane between frame members. A continuous drive shaft is supported between frame members adjacent the shade roller. Gearing is connected between the drive shaft and the roller to provide rotary motion to the roller to wind or unwind the window shade. A conveyor assembly is supported by each of the frame members, which conveyor assembly includes a rotatable driving member engaged to the drive shaft. An idler is supported at a portion of the frame member distal the driving member. A continuous conveyor belt is mounted between the driving member and the idler to form a continuous loop, whereby rotation of the driving member causes the conveyor belt to translate around the loop. The window shade is supported at its lateral edges by the conveyor belts at consecutive frame members. A relationship is maintained between the motion of the conveyor belt and the motion of the window shade so that the linear motion of the conveyor belt assists the window shade as it unwinds from the shade roller.
REFERENCES:
patent: 3853167 (1974-12-01), Wardlaw
patent: 4606157 (1986-08-01), Esposito
patent: 4721146 (1988-01-01), Wardlaw
patent: 4744403 (1988-05-01), Hausmann
patent: 4864783 (1989-09-01), Esposito
Chan Korie H.
Purol David M.
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