Cover drum having tapered ends and automatic swimming pool cover

Details Cover drum having tapered ends and automatic swimming pool cover Cover drum having tapered ends and automatic swimming pool cover

1990-03-16

1991-11-26

Phillips, Charles E.

Baths, closets, sinks, and spittoons

Pool type

Accessory

242 671R, 242 571, E04H 410

Patent

active

050671847

ABSTRACT:
A cover drum having conically tapered hubs at each end provides a mechanism for adjusting alignment of the pool covers of swimming pool cover systems in which the covers have beaded side edges captured and sliding within "C" channels provided by a pair tracks secured along the sides of the swimming pool. Specifically, by translating the cover drum, or alternatively, the conical hubs longitudinally along the rotational axis of the cover drum, one can control the relative rates at which each side of the cover winds and unwinds from around the cover drum as a function of the length of cover extended.
Each conically tapered hub may further include one or more diametrically oriented holes located proximate the apex for receiving a crank enabling the cover drum to be rotated manually.

REFERENCES:
patent: 2534686 (1950-12-01), Stauss et al.
patent: 3019450 (1962-02-01), Karasiewicz
patent: 3050743 (1962-08-01), Lamb
patent: 3747132 (1973-07-01), Foster
patent: 3982286 (1976-09-01), Foster
patent: 4001900 (1977-01-01), Lamb
patent: 4060860 (1977-12-01), Lamb
patent: 4494256 (1985-01-01), Radtke et al.
patent: 4686717 (1987-08-01), MacDonald et al.
patent: 4939798 (1990-07-01), Last
1985 Homeowner Manual for the AquaMatic Pool Cover System authored by the Applicant, Harry J. Last, for his company AMCS, Inc.
"History off the Automatic Pool Cover" prepared by the applicant, Harry J. Last and used for promotion of the automatic pool cover system manufactured by AMCS, Inc. and marketed under the trademark AquaMatic beginning Jul. 1988.

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