Check valves

Details Check valves Check valves

1994-01-21

1994-12-27

Nilson, Robert G.

Fluid handling

Larner-johnson type valves; i.e., telescoping internal valve...

Line condition change responsive

137528, 13753327, 251368, F16K 1506

Patent

active

053756215

ABSTRACT:
A diaphragm- and spring-less check valve for gaseous media comprising an inlet housing (41) having a sealing edge (51), an outlet housing (11) and a closure body (30) disposed in between the housings, which is guided so as to be axially (14) movable and capable of being impressed bilaterally in any desired position and/or state of the valve, wherein the closure body (30) is moveable exclusively on the basis of a differential pressure between inlet (41) and outlet housing (11) in the blocking position against the sealing edge (51) and in the through-put position the sealing edge (51).

REFERENCES:
patent: 1710214 (1929-04-01), Hassold
patent: 1795749 (1931-03-01), Winters
patent: 4172465 (1979-10-01), Dashner
patent: 4556084 (1985-12-01), Frawley
patent: 5080122 (1992-01-01), Neuzeret

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