Flow control valve
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United States of America Patent
Stats
-
Feb 21, 1989
Grant Date -
N/A
app pub date -
Jun 24, 1987
filing date -
Mar 4, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flow control valve, which supports a valve body movably to a valve shaft suported movably in a valve chamber, is provided at the valve shaft with flow grooves for allowing a fluid to flow therethrough even when the valve body operates for closing and a sealing member which closes the flow grooves when the valve shaft is further moved with respect to the valve body in condition of closing operation, thereby enabling a fluid passage to be open or closed in two steps.
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Family
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Cited Art Landscape
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