Valve assembly

Details Valve assembly Valve assembly

1985-06-28

1987-02-17

Scott, Samuel

Brushing, scrubbing, and general cleaning

Submerged cleaners with ambient flow guides

13762414, 137853, 239101, 251 5, E04H 320

Patent

active

046428330

ABSTRACT:
This invention relates to a valve assembly including a hollow body housing a tubular flexible diaphragm therein to provide a passage for fluid flow through the body. The assembly includes means whereby pressures within the diaphragm and in the chamber between the diaphragm and the hollow body are controlled so that, in use with fluid flowing through the diaphragm, it will be caused to automatically and repeatedly contract and expand. This will result in a pulsating flow of fluid through the assembly. Such a valve assembly finds particular application in a swimming pool cleaner operating off the reduced pressure provided by the pump for the conventional pool filtration plant and this invention includes a cleaner of this type including a valve assembly as set forth.

REFERENCES:
patent: 3469582 (1969-09-01), Jackson
patent: 3759289 (1973-09-01), De Wall
patent: 3803658 (1974-04-01), Raubenheimer
patent: 3883074 (1975-05-01), Lambert
patent: 4195810 (1980-04-01), Lavin
patent: 4512514 (1985-04-01), Elcott

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