Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1974-11-29
1978-05-16
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Assembling or joining
2853825, B21D 3900, B23P 1102
Patent
active
040891011
ABSTRACT:
A structure for providing a high pressure, fluidtight juncture between a tube or tubing and a fitting or body member in which a bore is provided in the fitting. The bore has a non-circular interior wall adjacent its opening and a threaded wall of lesser diameter interiorly of said non-circular portion. The tube has threads at or near one end which engage the threads of the bore. In addition, the tube is upset or displaced axially with the said end held against movement to flow the tubing into fluidtight sealing engagement with the threads, the non-circular portion of the bore and the transverse or lateral wall portion of the bore wall intermediate said threaded and non-circular portion, and with the exterior surface of the fitting at the bore opening. The invention also comprehends the method of making such a structure as set forth so that the tube and fitting resists relative movement tending to break the reel, either from direct outwardly pull axially of the bore or by torque applied to the tube and such a structure which is in and is useful in and as a part of a pilot light harness for gas stoves, and the like.
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