Check valve with vibration prevention function for valve body

Details Check valve with vibration prevention function for valve body Check valve with vibration prevention function for valve body

2005-05-17

2005-05-17

Rivell, John (Department: 3753)

Fluid handling

Line condition change responsive valves

Direct response valves

C137S535000

Reexamination Certificate

active

06892758

ABSTRACT:
A transmission member that transmits urging force of a helical spring to a valve body is disposed between the valve body and the helical spring. The transmission member changes a direction of an urging force transmitted to the valve body such that the urging force is oblique to a pressure action direction X. Accordingly, when a check valve is in an open state, the valve body is pressed against a side wall and thus vibration of the valve body is inhibited. Further, when the check valve is in a closed state, an angle θ formed by the direction of the urging force transmitted to the valve body and the pressure action direction X is set to be between 8 degrees and 45 degrees. Accordingly, it is possible to simultaneously realize a fluid path opening/closing function and a valve body vibration inhibition function.

REFERENCES:
patent: 2103673 (1937-12-01), Hoferer
patent: 2714392 (1955-08-01), Mercier
patent: 2914085 (1959-11-01), Mercier
patent: 3437082 (1969-04-01), Bouwkamp et al.
patent: 3465787 (1969-09-01), Gulick
patent: 3742975 (1973-07-01), Kazama et al.
patent: 4072291 (1978-02-01), Adams
patent: 4842015 (1989-06-01), Haak et al.
patent: 6439263 (2002-08-01), Schwegler et al.
patent: 6662824 (2003-12-01), Inage et al.
patent: 20020079000 (2002-06-01), Inage et al.

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