Device and method for forming piping components

Details Device and method for forming piping components Device and method for forming piping components

2007-01-02

2007-01-02

Banks, Derris H. (Department: 3725)

Metal deforming

Process

Tube making or reshaping

C072S370220

Reexamination Certificate

active

11233534

ABSTRACT:
A method and apparatus for being hollow work pieces has a pressurizing arrangement that allows the pressure to be adjusted in an internal cavity defined within the work pieces between subsequent bending operations on any one work piece. The internal cavity is defined by sealing caps that are secured to the ends of the work piece.

REFERENCES:
patent: 3105537 (1963-10-01), Foster
patent: 3739615 (1973-06-01), Tressel
patent: 2004/0007037 (2004-01-01), Yoshino et al.
patent: 10-58051 (1998-03-01), None
patent: 2002-192237 (2002-07-01), None
patent: 2002-254112 (2002-09-01), None
International Search Report; Dated Oct. 12, 2004; International Appl. No. PCT/JP2004/003830; 25 pages.

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