Tubing for hydrostatic forming, hydrostatic forming...

Details Tubing for hydrostatic forming, hydrostatic forming... Tubing for hydrostatic forming, hydrostatic forming...

2007-02-06

2007-02-06

Brinson, Patrick F. (Department: 3754)

Pipes and tubular conduits

Longitudinally seamed

C138S171000, C138S170000, C138S163000, C029S006100

Reexamination Certificate

active

11001093

ABSTRACT:
A tubing including an overlap portion formed by the first and second circumferential end portions overlapping and joined with each other, and a fluid leakage preventing member for preventing pressurized fluid from leaking from the tubing upon the tubing being subjected to hydrostatic forming. An apparatus and method for hydrostatic forming of a tubing having an overlap portion. The apparatus includes a die and a nozzle having fluid leakage preventing means for preventing the pressurized fluid supplied into the tubing from leaking from a clearance between the first and second circumferential end portions of the overlap portion of the tubing at the longitudinal end portions of the tubing.

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