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:
Sep. 29, 1992
Filed:
Dec. 27, 1990
Applicant:
Inventor:
Kamezawa Jiro, Daito, JP;
Assignee:
Tomoe Technical Research Co., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
137375 ;
Abstract
A butterfly valve having a thermal break point located in the shaft cylinder portion through which the valve stem passes is shown and described. The thermal break is a heat insulating material which may be non-metallic, a plastic, and an electrical insulator. The portion of the shaft cylinder extending out of an insulating core is made of insulating material and connected to metallic parts of the valve shell structure by gluing, vibration melting adhesion, and mechanical overlapping methods.
Quick Actions:
Jiro, Kamezawa. (1992). Butterfly valve to prevent dew condensation therefrom (U.S. Patent No. 5150731). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5150731
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile