Flexible or portable closure – partition – or panel – Roll type – Shiftable position roll
Patent
1999-04-07
2000-12-05
Redman, Jerry
Flexible or portable closure, partition, or panel
Roll type
Shiftable position roll
160310, A47G 502
Patent
active
061553263
ABSTRACT:
An upper end of a flexible door or curtain is attached to an overhead support member while a lower portion of the curtain is disposed on and connected to an elongated horizontal tube along its length. A combination electric motor and gear box is connected to a first end of the tube for rotating the tube in a first direction for rolling the curtain onto the tube and raising the curtain and tube combination, or for rotating the tube in a second, opposed direction for unrolling the curtain from the tube and lowering the curtain and tube combination. Attached to the electric motor/gear box combination is a carriage or roller assembly which engages and rides on a generally vertical guide rail or runner during raising and lowering of the curtain. The engaging force between the roller assembly and the guide rail is adjustable to prevent binding of the curtain as it is rolled up onto or removed from the tube. A second opposed end of the tube may be either free, such as when the curtain is used indoors, or may be attached to a second generally vertical guide rail such as when the curtain is used as a door to the outside. With the curtain wound around the vertically displaced rotating tube, a continuous curtain having a large width and length can be rolled up to a retracted position or unrolled to an extended position at very high speeds using a simplified drive arrangement employing a small electric motor.
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Farm Buyer's Guide--vol. 11, "Shur-lok Roll Tarp" Brochure.
"Easy-Way Roll Tarp," tct & a Industries, Division of Twin City.
Tent & Awning Company, 308 E. Anthony Drive, P.O. Box 638, Urbana, IL 61801 .
Imhoff John C.
Kindig David L.
Redman Jerry
Swiss Bell Farms, Inc.
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