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. 30, 1979
Filed:
Sep. 05, 1975
Billy G Crute, Connersville, IN (US);
Henry Ruhl, Connersville, IN (US);
William R Coffey, Indianapolis, IN (US);
Stant Manufacturing Company, Inc., Connersville, IN (US);
Abstract
A cap for a radiator filler neck of the type having a peripherally extending upper lip and, downwardly from the lip, a radially inwardly and peripherally extending, upwardly facing pressure valve seat concentric with the axes defined by the neck and the cap. The cap comprises an outer shell for engaging and closing the filler neck, a molded plastic retainer connected to the outer shell, and a molded plastic pressure valve member for engaging the valve seat. The retainer has a peripherally and radially outwardly extending flange and a downwardly extending shank, a sealing ring is carried by the flange for engaging and sealing against the upper lip, and the valve member is provided with an upwardly extending shank. The shanks have interlocking portions for connecting the valve member to the retainer and a spring is disposed about the shanks for yieldably urging the valve member against the valve seat as well as to maintain the interlocking portions in engagement. The interlocking shank portions form a bayonet-type connecting arrangement in which one of the two shanks is moved axially into the other shank and then rotated and then moved axially in the opposite direction to complete the interlocking engagement. The retainer is provided with a plurality of peripherally spaced apart, downwardly and radially outwardly extending fingers which deflect resiliently inwardly to permit the retainer to be inserted into the shell and which then move radially outwardly to secure the retainer within the shell.