Piping

Details Piping Piping

1997-11-24

2000-01-11

Arola, Dave W.

Pipe joints or couplings

With lubrication

285114, 285363, 285906, 138123, F10L 904

Patent

active

060127422

ABSTRACT:
In order to improve a piping comprising at least one pipe and reinforcement on the outer wall of each pipe in such a way as to increase the maximum permissible internal operating pressure, it is proposed that the reinforcement should be capable of expansion along the length of the pipe and capable of contracting radially in such a way that a bias pressure can be applied to the pipe around its circumference by the longitudinal expansion of the reinforcement.

REFERENCES:
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patent: 1294921 (1919-02-01), Lewis
patent: 1982732 (1934-12-01), Fletcher et al.
patent: 2189987 (1940-02-01), Kellems
patent: 2434358 (1948-11-01), Frank
patent: 2711331 (1955-06-01), Temple
patent: 2750210 (1956-06-01), Trogdon et al.
patent: 3029094 (1962-04-01), Parlasca et al.
patent: 3232640 (1966-02-01), Donkle
patent: 3631897 (1972-01-01), Fischer et al.
patent: 4159027 (1979-06-01), Cuillet
patent: 4200126 (1980-04-01), Fish

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