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.:
Date of Patent:
Dec. 12, 2006
Filed:
Dec. 22, 2004
Applicant:
Takamasa Ohtsuji, Saitama, JP;
Inventor:
Takamasa Ohtsuji, Saitama, JP;
Assignee:
Komatsu Zenoah Co., Saitama, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 75/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A rotary valve which can securely shut off a fluid flow without improving a working accuracy of an outer peripheral surface of a valve and an inner diameter portion of a body, and which has a simple and compact structure, wherein a gap is formed between the outer peripheral surface of the valve and the inner diameter portion of the body, a lip portion of seal means attached within a second lead air flow path is brought into contact with the outer peripheral surface of the valve on the basis of an elastic force of a support portion, and the lip portion securely seals between the second lead air flow path and the gap.