Procedure and apparatus for cold joining of metallic pipes

Details Procedure and apparatus for cold joining of metallic pipes Procedure and apparatus for cold joining of metallic pipes

1993-09-23

1995-08-22

Arola, Dave W.

Metal working

Method of mechanical manufacture

Magnetically shaping

29516, 29458, 72 29, 72 56, 2853821, 2853822, 285915, B23P 1700

Patent

active

054428467

ABSTRACT:
Joinder of two adjacent segments of steel pipe having an outer diameter of at least 12 inches, by a bridging sleeve, the sleeve being joined to both pipe segments by magnetic forming. Apparatus enabling the process includes a segmented ring-shaped coil brought together around the joinder, to form a complete coil circuit for magnetic forming.

REFERENCES:
patent: 2001204 (1935-05-01), Long et al.
patent: 2121558 (1938-06-01), Coe et al.
patent: 2367206 (1945-01-01), Davis
patent: 3022209 (1962-02-01), Campbell
patent: 3068563 (1962-12-01), Reverman
patent: 3238346 (1966-03-01), Savko
patent: 3581456 (1971-06-01), Gere
patent: 3590464 (1971-07-01), Wildi
patent: 3992773 (1976-11-01), Duffner
patent: 4657287 (1987-04-01), Nimke
patent: 4902048 (1990-02-01), Washizu
Time magazine pp. 73, May 8, 1964.

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