Pool cleaner with improved elastomeric valve

Details Pool cleaner with improved elastomeric valve Pool cleaner with improved elastomeric valve

1993-01-04

1993-11-30

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Submerged cleaners with ambient flow guides

13762414, E04H 320

Patent

active

052652971

ABSTRACT:
A vacuum pool cleaning device of the interrupted flow type having a valve in the form of a pair of lips biased to an open position by the inherent elasticity of the plastic material forming a portion or all of the valve in which an auxiliary biasing structure with low creep properties is applied to the lips of the valve and function to compensate for the memory loss during a cycle of operation of the valve in the plastic, due to its relatively high creep properties, by returning the lips substantially to their open position when the operation of the unit is stopped, so that during the at-rest period prior to the next cycle the plastic material can reestablish its memory.

REFERENCES:
patent: 4642833 (1987-02-01), Stoltz et al.
patent: 4742593 (1988-05-01), Kallenbach
patent: 4769867 (1988-09-01), Stoltz

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