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:
Nov. 01, 1983
Filed:
Jul. 29, 1981
Applicant:
Inventor:
Peter C Chow, Newark, CA (US);
Assignee:
Grove Valve and Regulator Company, Oakland, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
137375 ; 251-5 ; 251 611 ;
Abstract
An expansible tube type valve wherein a flexible tube, which is sealed around its ends in a valve body, is stretched to seal around a barrier in the flow passage. Thin rings of thermal insulation material are disposed around the ends of the flexible tube, interposed between it and parts of the valve body normally in contact therewith, so as to isolate the tube from the body and preclude transmission of high temperatures thereto, as in the event of a fire in the area.