Pipe joints or couplings – Swivel – Pipe in socket type
Patent
1999-01-25
2000-04-25
Arola, Dave W.
Pipe joints or couplings
Swivel
Pipe in socket type
285 39, 28514815, 28514819, 285276, 285281, 285404, F16L 2708
Patent
active
060535393
ABSTRACT:
A swivel fitting is provided for use on the riser line associated with the underground storage tank of gasoline service stations. The swivel fitting includes an adapter sleeve that attaches to the riser line by a standard threaded connection. A swivel sleeve includes a fill adapter fitting for use in removably attaching a product transfer hose as is typically used to transfer product to the underground storage tank from a tanker truck. The swivel sleeve is sleeved to the adapter sleeve to permit rotation of the fill adapter fitting with respect to the riser line. A pair of bearing surfaces and a bearing between the swivel sleeve and the adapter sleeve allow smooth rotation of the swivel sleeve with respect to the adapter sleeve.
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