Filling nozzle valve structure
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United States of America Patent
Stats
-
Jun 10, 1986
Grant Date -
N/A
app pub date -
Dec 20, 1983
filing date -
Dec 20, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A filling nozzle valve structure, with a first housing member provided with a chamber-like recess terminating in an outlet bore, an annular diaphragm member in the bottom of the recess, a valving member operable to engage with the diaphragm, and a second housing member operable to be screwed together with said first housing member and holding said valving member in place within the recess; the valving member is provided with a central bore extending therethrough and with two annular diaphragm-engaging surfaces spaced in the radial direction and leaving therebetween discharge bores in communication with the central bore; the outer annular surface thereby engages with the outer area of the annular diaphragm member so as to prestress the same in the flow direction to thereby cause the inner area of the annular diaphragm to deflect in the opposite direction and thereby engage with the inner annular surface of the valving member whereby the valve structure is closed; a predetermined pressure on the diaphragm will cause disengagement of the inner annular diaphragm area from the inner surface of the valving member to open the valve structure.
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