Hydraulic power attenuator

Details Hydraulic power attenuator Hydraulic power attenuator

1985-01-04

1987-06-30

Marcus, Stephen

Baths, closets, sinks, and spittoons

Pool type

Accessory

74788, 74352, E04H 319

Patent

active

046759220

ABSTRACT:
A compact swimming pool cover handling system including a pair of stationary roller support members, a roller for attaching the pool cover, and a hydraulic power attenuator for operation of the system. The hydraulic power attenuator includes controls for reversing directions of the roller without removing the source of liquid operating the device.

REFERENCES:
patent: 1108700 (1914-08-01), Christoffel
patent: 1654031 (1927-12-01), Adragna
patent: 2727402 (1955-12-01), Thoresen
patent: 3698690 (1972-10-01), Beaver
patent: 3885255 (1975-05-01), Vorbach et al.
patent: 4404891 (1983-09-01), Turnquist et al.
patent: 4407027 (1983-10-01), Colon, Jr.
patent: 4471500 (1984-09-01), Long et al.
patent: 4491208 (1985-01-01), Burdon, Jr.

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