초록 ▼

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 enga

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.

대표청구항 ▼

For a radiator filler neck of the type having a peripherally eXtending upper lip and, downwardly from said lip, a radially inwardly and peripherally extending, upwardly facing pressure valve seat, a cap comprising an outer shell for engaging and closing said filler neck, a molded plastic retainer co

For a radiator filler neck of the type having a peripherally eXtending upper lip and, downwardly from said lip, a radially inwardly and peripherally extending, upwardly facing pressure valve seat, a cap comprising an outer shell for engaging and closing said filler neck, a molded plastic retainer connected to said outer shell, and a molded plastic pressure valve member for engaging said seat, said retainer having a peripherally and radially outwardly extending flange and a downwardly extending shank, sealing means carried by said flange for engaging and sealing against said upper lip, said valve member providing an upwardly extending shank, said shanks having interlocking portions for connecting said valve member to said retainer, spring means for yieldably urging said valve member against said valve seat, said spring means acting between said retainer and valve member to hold said interlocking shank portions in engagement, the improvement in which said shell has a peripherally depending skirt formed to provide peripherally and radially inwardly extending flange means having an upwardly facing surface, said retainer flange having a plurality of peripherally spaced apart, downwardly and radially outwardly extending fingers for engaging said upwardly facing surface of said flange means to connect said retainer within said shell, said fingers being resiliently deflectable radially inwardly to move upwardly past said flange means when said retainer is inserted into said shell, said retainer being rotatable in said shell.