VALVE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Jul 11, 2024
app pub date -
May 24, 2022
filing date -
May 27, 2021
priority date (Note) -
Published
status (Latency Note)
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Abstract
The invention provides a valve capable of suppressing unintended valve opening/closing by providing a play state during a manual operation and also enabling smooth transition from the play state to a rotation state. In the valve, a tip of another end portion of the stem and the engagement hole of an operation handle form a corresponding circumferential surface and a planar section continuous to the circumferential surface. Either one of the tip of the other end portion of the stem and the planar section of the engagement hole of the operation handle is formed to have two flat surfaces defining a predetermined angle, and thereby generates predetermined play when the operation handle is rotated in one direction after being rotated in another direction.
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