Expansible tube valves

Details Expansible tube valves Expansible tube valves

1975-12-04

1977-09-27

Schwadron, Martin P.

Valves and valve actuation

Tube compressors

Fluid pressure actuated

251 611, F16L 5514

Patent

active

040506690

ABSTRACT:
A valve wherein an expansible tube is stretched around a hollow core, which has a central barrier between inlet and outlet slots around the core. An annular groove is formed around the outer sealing surface of the barrier and extensions of some of the downstream slots open into the groove to vent the groove and produce a pressure drop across the expansible tube to enhance sealing and to provide an initial flow path when the tube is forced away from the sealing surface.

REFERENCES:
patent: 2331291 (1943-10-01), Annin
patent: 2353143 (1944-07-01), Bryant
patent: 2360873 (1944-10-01), Grove
patent: 2621889 (1952-12-01), Annin
patent: 2747608 (1956-05-01), Grove
patent: 3582037 (1971-06-01), Levesgue
patent: 3836113 (1974-09-01), Johnson

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