Hydroform die tube holding assembly and method of making same

Details Hydroform die tube holding assembly and method of making same Hydroform die tube holding assembly and method of making same

2006-11-28

2006-11-28

Jones, David (Department: 3725)

Metal deforming

By application of fluent medium, or energy field

Using fixed die

C072S061000, C029S421100

Reexamination Certificate

active

07140217

ABSTRACT:
A hydroform die tube holding assembly and method of using same includes at least one seal unit for sealing an end of a tube. The hydroformed die tube holding assembly also includes a seal unit elevator for attachment to a lower die half to operatively support the at least one seal unit. The hydroformed die tube holding assembly further includes at least one upper gas spring for attachment to an upper die half to engage, the seal unit elevator to drive the seal unit elevator downward prior to the upper die half engaging the tube.

REFERENCES:
patent: 5233854 (1993-08-01), Bowman et al.
patent: 5233856 (1993-08-01), Shimanovski et al.
patent: 5321964 (1994-06-01), Shimanovski et al.
patent: 6279364 (2001-08-01), Morphy et al.
patent: 6637246 (2003-10-01), Shimanovski et al.
patent: 6732560 (2004-05-01), Winterhalter et al.

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