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:
Jan. 17, 1984
Filed:
Aug. 12, 1982
Boyd P Sliger, Concord, TN (US);
Robertshaw Controls Company, Richmond, VA (US);
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 a relatively narrow annular edge for closing against the valve seat in a direction substantially perpendicular to the valve seat and the valve seat having an annular flexible elastomeric insert that is wider than the annular edge of the valve member whereby the annular edge of the valve member closes against the annular flexible elastomeric insert within the inner and outer peripheral edges thereof to close the valve seat. The edge of the valve member is turned to present a knife-edge to the insert and an arcuate annular surface on the valve member that begins at the knife-edge.