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:
May. 10, 1977
Filed:
Feb. 20, 1975
Joseph P Wagner, Knoxville, TN (US);
Boyd P Sliger, Concord, TN (US);
Robertshaw Controls Company, Richmond, VA (US);
Abstract
A thermostatically operated valve construction for an engine coolant system and having a tubular sleeve valve member for opening and closing an annular valve seat of the construction at one end of the tubular sleeve valve member that is interconnected to a temperature responsive device, the sleeve valve member having a part thereof projecting from the one end thereof into and closely adjacent the annular valve seat when the sleeve valve member is between a closed position and a partially opened position to thereby meter the flow through the valve seat during a substantial portion of the initial opening movement of the sleeve valve member.