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US 10,378,226 B2Granted
Pool cover winding system using water-powered piston motor
AssigneeMaytronics Ltd.
InventorsJacob Shpringer, Jean-Paul Villacampa, Ehud Nagler
Life of this patent
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Abstract
A pool cover winding system has first and second end supports rotatably supporting a shaft for receiving a pool cover wound around it. A bidirectional piston motor operates under control of a valve arrangement connecting a source of water pressure to a first inlet to generate rotation in a first direction for winding a pool cover around the shaft, and to a second inlet to generate rotation in a second direction for unwinding a pool cover from the shaft.
Claims2
A pool cover winding system comprising:
- (a) a shaft for receiving a pool cover wound around it;
- (b) first and second end supports that are stationary and are configured for supporting said shaft rotatably;
- (c) a bidirectional piston motor mechanically linked to said first end support and said shaft, said bidirectional piston motor being configured to operate under fluid pressure supplied to a first inlet to generate rotation in a first direction for winding a pool cover around said shaft, and to operate under fluid pressure supplied to a second inlet to generate rotation in a second direction for unwinding a pool cover from said shaft;
- and (d) a valve arrangement for selectively connecting a source of water pressure to each of said first and second inlets;
- wherein said shaft is at least partially hollow, and wherein said bidirectional piston motor is deployed primarily within said shaft;
- wherein the bidirectional piston motor comprises cylinders and a main water flow manifold;
- wherein the main water-flow manifold is configured to provide water pressure input or drainage connection to each cylinder as a function of an angular position of the cylinder.
4 more elements
Dependencies are inferred from the claim text.