Donald A Mcclelland

US Patent:

51054817, Apr 21, 1992

Filed:

Aug 11, 1989

Appl. No.:

7/393407

Inventors:

Joe H. Lamb - late of Salt Lake City UT
Kelly J. Ragsdale - Salt Lake City UT
Donald L. McClelland - Fish Haven ID

Assignee:

Cover-Pools, Inc. - Salt Lake City UT

International Classification:

C04H 319

US Classification:

4502

Abstract:

A swimming pool cover apparatus is described whereby the pool cover may be extended and retracted through a power source. The apparatus includes a drive shaft circumscribed by a pair of sleeves. Each of the sleeves may be selectively rotated through a double-dog clutch system connected to the drive shaft. A cover-collecting drum is connected to one of the sleeves. A pair of cord-collecting reels rotatably circumscribe the other sleeve. Controlled rotation of the two cord-collecting reels is achieved through a ratchet and spring-biased pawl system. This system also permits slippage of either of the two cord-collecting reels when the tension on either one of the reels becomes excessive.