Valve apparatus

Details Valve apparatus Valve apparatus

1989-01-26

1990-04-03

Nilson, Robert G.

Valves and valve actuation

Valve actuator is valve casing or extension thereof

Jointed or flexible wall

251900, F16K 702

Patent

active

049134019

ABSTRACT:
A valve apparatus for installation in a fluid conveying conduit which is operable by deformation of valve elements to open and permit fluid flow therethrough.

REFERENCES:
patent: 274447 (1883-03-01), Kennish
patent: 1418592 (1922-06-01), McGee
patent: 2666432 (1954-01-01), Stanton
patent: 2706101 (1955-04-01), Cantor
patent: 3450146 (1969-06-01), Edwards
patent: 3977409 (1976-09-01), Brendling
patent: 4106675 (1978-08-01), Taylor
patent: 4142645 (1979-03-01), Walton
patent: 4181140 (1980-01-01), Bayham et al.
patent: 4267834 (1981-05-01), Barger
patent: 4294247 (1981-10-01), Carter et al.
patent: 4300571 (1981-11-01), Waldbillig

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