Mechanism for extending and retracting swimming pool covers

Details Mechanism for extending and retracting swimming pool covers Mechanism for extending and retracting swimming pool covers

1986-02-04

1989-08-22

Marcus, Stephen

Baths, closets, sinks, and spittoons

Pool type

Accessory

E04H 319

Patent

active

048582530

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.

REFERENCES:
patent: 2754900 (1956-07-01), Karubonik et al.
patent: 2958083 (1960-11-01), Shook et al.
patent: 3019450 (1962-02-01), Karasiewicz
patent: 3050743 (1962-08-01), Lamb
patent: 3051232 (1962-08-01), Lamb
patent: 3499174 (1970-03-01), Carey
patent: 4060860 (1977-12-01), Lamb

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