Fusible plug type pressure relief valve

US9702473B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9702473-B2
Application numberUS-201414770976-A
CountryUS
Kind codeB2
Filing dateJan 28, 2014
Priority dateMar 4, 2013
Publication dateJul 11, 2017
Grant dateJul 11, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A fusible plug type pressure relief valve includes a housing, a valve element, a spring member, and a fusible piece. A valve passage is formed in the housing. A valve element is arranged at a closed position in the housing, the closed position being a position at which the valve element closes the valve passage. The valve element is movable to an open position at which the valve element opens the valve passage. The spring member presses the valve element in an open direction. The fusible piece supports the valve element against pressing force of the spring member. The fusible piece melts at not less than a predetermined melting temperature. An inner surface of a concave portion of the fusible piece contacts the valve element. The concave portion includes a tapered portion inclined relative to an axis line of the valve element.

First claim

Opening claim text (preview).

The invention claimed is: 1. A fusible plug type pressure relief valve comprising: a housing in which a valve passage is formed; a valve element arranged at a closed position in the housing and movable to an open position, the closed position being a position at which the valve element closes the valve passage, the open position being a position at which the valve element opens the valve passage; a pressing member configured to press the valve element in an open direction that…

Assignees

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Classifications

  • Mechanical Engineering · mapped topic

  • F16K17/383Primary

    Mechanical Engineering · mapped topic

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What does patent US9702473B2 cover?
A fusible plug type pressure relief valve includes a housing, a valve element, a spring member, and a fusible piece. A valve passage is formed in the housing. A valve element is arranged at a closed position in the housing, the closed position being a position at which the valve element closes the valve passage. The valve element is movable to an open position at which the valve element opens t…
Who is the assignee on this patent?
Kawasaki Heavy Ind Ltd
What technology area does this patent fall under?
Primary CPC classification F16K17/383. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Jul 11 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).