Philips Industries Inc.

Donald J Klein

Donald R Bowker

Stephen E Rados

A swivel joint assembly for plumbing systems includes a first fitting having a receptacle end and a second fitting having a plug end positionable in the receptacle end. The plug end and receptacle end having cooperating mating surfaces, one of which has a locking groove divided into first and second portions, the more distal of which is shallower than the other. The other surface has a groove to receive a locking ring also positioned in the locking groove. A barrel end of the plug receives a seal member to seal against the inner surface of the receptical end.

Swivel joint

Method of making grooved, bell-ended thermoplastic pipe. In order to remove the core from undercuts, most of the molded article is cooled until substantially rigid while the bell-end is cooled more slowly. The article is ejected from the mold while the bell end is still soft enough to be deformed during ejection but recovers its shape after removal from the mold.

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Downey, CA, United States of America

Donald J Klein