Passage-switching valve

US9200715B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9200715-B2
Application numberUS-201214357292-A
CountryUS
Kind codeB2
Filing dateOct 11, 2012
Priority dateNov 11, 2011
Publication dateDec 1, 2015
Grant dateDec 1, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

Provided is a rotary passage-switching valve having a rotor with an extended service life. The passage-switching valve according to the present invention has a stator and a rotor which is rotatable while sliding relative to the stator. The stator has a plurality of ports whose ends are open on a sliding surface on which the rotor is made to rotate and slide. The rotor has a passage groove for connecting two or more of the ports. At an edge of the passage groove, the rotor is in contact with the sliding surface of the stator at a contact angle α greater than 120°.

First claim

Opening claim text (preview).

The invention claimed is: 1. A passage-switching valve having a stator and a rotor, the rotor being rotatable while sliding relative to the stator, the stator having a plurality of passages whose ends are open on a sliding surface on which the rotor is made to rotate and slide, and the rotor having a passage groove for connecting two or more of the plurality of passages, wherein: the rotor, at an edge of the passage groove, is in contact with the sliding surface of the stator at…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9200715B2 cover?
Provided is a rotary passage-switching valve having a rotor with an extended service life. The passage-switching valve according to the present invention has a stator and a rotor which is rotatable while sliding relative to the stator. The stator has a plurality of ports whose ends are open on a sliding surface on which the rotor is made to rotate and slide. The rotor has a passage groove for c…
Who is the assignee on this patent?
Shimadzu Corp
What technology area does this patent fall under?
Primary CPC classification F16K11/0853. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Dec 01 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).