Apparatus for joining tubing

Details Apparatus for joining tubing Apparatus for joining tubing

1979-08-23

1982-08-31

Arola, Dave W.

Pipe joints or couplings

Packed

Wedge

285347, 285354, 285422, F16L 1702

Patent

active

043469230

ABSTRACT:
A leak-tight noncontaminative joint connecting a section of titanium, tantalum, zirconium or stainless steel tubing with second section of titanium, tantalum, zirconium or stainless steel tubing of a larger diameter is formed by placing a compressible O-ring, a slidable, nontitanium, nontantalum, nonzirconium or nonstainless steel ferrule and a fixed, nontitanium, nontantalum, nonzirconium or nonstainless steel mechanical stop around the outer surface of the smaller tubing and inserting the smaller tubing into the larger tubing so as to compress the O-ring between the two sections, until the ferrule, which conformably engages the inner surface of the larger tubing, is driven firmly against the mechanical stop. In this arrangement the fluid being transported within the titanium, tantalum, zirconium or stainless steel tubings is unable to pass by the O-ring and thus does not contact either the nontitanium, nontantalum, nonzirconium or nonstainless steel ferrule or stop. A coupling nut for holding the two joined pieces of tubing together is also disclosed.

REFERENCES:
patent: 2158757 (1939-05-01), Kuestermeier
patent: 2724602 (1955-11-01), Carey
patent: 3437357 (1969-04-01), Rubin
patent: 3521910 (1970-07-01), Callahan et al.
patent: 3542405 (1970-11-01), Nalodka
patent: 3698744 (1972-10-01), Bevington
patent: 3708186 (1973-01-01), Takagi
patent: 3848905 (1974-11-01), Hammer

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