Lock device and valve device
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United States of America Patent
Stats
-
Oct 31, 2017
Grant Date -
Mar 31, 2016
app pub date -
Apr 11, 2014
filing date -
Apr 17, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided are a valve device free of changes in the position of the valve member caused by external force and fluid pressure, and a lock device for the valve device. The lock device has a tubular member fitted to the rotating part of the valve device so that the member is movable along the axis of the rotating part in both directions, wherein the member has a protrusion on its inner circumferential face along its axis, and the protrusion engages with or disengages from recesses in an outer circumferential face of a holder of the rotating part formed along its axis when the member moves in either direction; or the member has recesses in its inner circumferential face formed along its axis, and the recesses engage with or disengage from a protrusion on the outer circumferential face of the holder along its axis when the member moves in either direction.
First Claim
Family
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Cited Art Landscape
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