The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7438062 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 21, 2008

Filed:

Sep. 22, 2006
Applicants:

Akira Okawa, Obu, JP;

Masahiro Ishikawa, Obu, JP;

Inventors:

Akira Okawa, Obu, JP;

Masahiro Ishikawa, Obu, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 25/07 (2006.01); F02B 47/08 (2006.01); F28F 27/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A flow passage switching valve provided with a swing arm type valve element comprises a housing formed with a first passage communicated with an inlet port, a second passage communicated with an outlet port, a bypass passage for providing communication between the first passage and the second passage, an introduction port through which a fluid flowing in the first passage is introduced into an external part, and a discharge port through which the fluid introduced into the external part is discharged into the second passage.


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Okawa, Akira. (2008). Flow passage switching valve (U.S. Patent No. 7438062). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7438062

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