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. 24, 1981
Filed:
Mar. 20, 1978
Applicant:
Inventors:
Boyd P Sliger, Concord, TN (US);
Everett T Steele, Jr, Knoxville, TN (US);
Assignee:
Robertshaw Controls Company, Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D / ;
U.S. Cl.
CPC ...
236 345 ; 251333 ;
Abstract
A valve construction having a valve seat and a movable valve member for opening and closing the valve seat and being operatively interconnected to a thermal power element carried by the valve construction, the valve member having an annular metallic part for engaging the valve seat to close the same and having an annular flexible elastomeric part for also engaging the valve seat upstream from the metallic part to augment the closing of the valve seat. The annular flexible elastomeric part is molded to the metallic part to be carried thereby.