Pressure regulating valve

US8985141B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8985141-B2
Application numberUS-201113137582-A
CountryUS
Kind codeB2
Filing dateAug 26, 2011
Priority dateDec 15, 2004
Publication dateMar 24, 2015
Grant dateMar 24, 2015

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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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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

In order to achieve seal durability and bring about a damping action for a piston-type pressure regulating valve, a pressure regulating valve of the present invention is characterized by a valve moving member moving in such a manner as to cause communication or block communication between a primary chamber and a secondary chamber within a case, wherein a plurality of central members are arranged between the case and the valve moving member and the plurality of central members are taken to be different materials. It is then possible to bring about both a damping action and seal durability using the central members by providing central members of different materials.

First claim

Opening claim text (preview).

The invention claimed is: 1. A pressure regulating valve, comprising: a case that includes a primary chamber and a secondary chamber; a valve moving member that includes a piston and a valve element, wherein: the valve moving member moves in such a manner as to cause communication or block communication between the primary chamber and the secondary chamber within the case, and a first end of the piston faces the secondary chamber and a second end of the piston faces a referen…

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What does patent US8985141B2 cover?
In order to achieve seal durability and bring about a damping action for a piston-type pressure regulating valve, a pressure regulating valve of the present invention is characterized by a valve moving member moving in such a manner as to cause communication or block communication between a primary chamber and a secondary chamber within a case, wherein a plurality of central members are arrange…
Who is the assignee on this patent?
Ishitoya Tsukuo, Kobayashi Nobuo, Ogami Nobuyuki, and 2 more
What technology area does this patent fall under?
Primary CPC classification F16K31/1223. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Mar 24 2015 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).