Tubing and fittings with cast-in-place liners

Details Tubing and fittings with cast-in-place liners Tubing and fittings with cast-in-place liners

1982-04-09

1984-11-27

Arola, Dave W.

Pipe joints or couplings

With casing, lining or protector

Lined

285156, 2853323, 2853345, 285354, F16L 914

Patent

active

044847700

ABSTRACT:
Tubing and fittings with cast-in-place liners. Relatively thin and lightweight liners can be made of relatively expensive or inconvenient materials to provide chemical resistance or other special requirements. The liner can be cast in place in a jacket made of less expensive material to provide the necessary strength. To couple a pair of these tubings, the jacket of one is cut back to expose an end portion of the liner. The exposed end portion is flared outwardly against a sleeve to form a tapered seal surface. The liner of the other tubing has a nose that projects beyond the end of its jacket with a tapered seal surface that bears against the other tapered surface. A compression device such as a nut or a clamp holds the tubings together.

REFERENCES:
patent: 3338598 (1967-08-01), Kurtz
patent: 4313625 (1982-02-01), West

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