Automatic fluid circulating system and method

Details Automatic fluid circulating system and method Automatic fluid circulating system and method

1994-03-30

1995-05-09

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

137855, F16K 1516

Patent

active

054131421

ABSTRACT:
A check value for controlling fluid flow comprises two sleeves connected to one another in fluid-tight engagement and a flexible membrane disposed across an interior cross-section of the engaged sleeves. The flexible membrane is secured to the sleeves along less than the membrane's full circumference, so that the unsecured portion of the membrane can flex to allow fluid to flow through the sleeves in one direction. The membrane resists fluid flow in the opposite direction.

REFERENCES:
patent: 3119411 (1964-01-01), Bock
patent: 3628565 (1971-12-01), McWethy

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