Mandrel assembly for vulcanizing a vent tube within the bore of

Details Mandrel assembly for vulcanizing a vent tube within the bore of Mandrel assembly for vulcanizing a vent tube within the bore of

1978-09-28

1979-10-16

Schulz, William E.

Static molds

Core

Of resilient material capable of flexure to aid removal of...

141285, 156294, 220 86R, B29C 112

Patent

active

041711181

ABSTRACT:
A mandrel assembly for vulcanizing an elastomeric vent tube within the bore of a larger elastomeric filler neck hose having a complex, multi-curved configuration comprises an elastomeric flexible vent tube mandrel and a metallic filler neck mandrel having a groove oriented longitudinally along the curved surface of a depth for receiving a mandrel mounted vent tube therein such that a portion of the tube outside surface is in intimate contact with the bore surface of the filler neck hose when it is mounted on the filler neck mandrel. Upon vulcanization, the elastomeric mandrel is pulled out the vent tube and the filler neck hose is pulled off the filler neck mandrel with the vent tube being integrally joined to the filler neck hose bore at their contacting surfaces.

REFERENCES:
patent: 1721253 (1929-07-01), Loughead et al.
patent: 3016161 (1962-01-01), Peplin
patent: 3187936 (1965-06-01), Downing
patent: 3865666 (1975-02-01), Shoneg

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