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:
Mar. 09, 1982
Filed:
Dec. 05, 1979
Applicant:
Inventors:
Mikimaro Nakanishi, Yao, JP;
Kiyoji Tanimoto, Katano, JP;
Assignee:
Tomoe Technical Research Company, Higashi-Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16K / ;
U.S. Cl.
CPC ...
137246 ; 13724616 ; 13724622 ; 251306 ; 251355 ;
Abstract
A butterfly valve is adapted to pivot a valve stem to a valve body through openings formed in a ring-shaped elastic valve seat attached inside the valve body, to slidably contact the valve member and the inner face of the valve seat each other in the vicinity of the valve stem, and to form recesses for charging lubricant in the slidably contacting face on the valve seat or on the side face of the valve member.
Quick Actions:
Nakanishi, Mikimaro. (1982). Butterfly valve (U.S. Patent No. 4318422). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4318422
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile