Reaction device for forming equipment

Details Reaction device for forming equipment Reaction device for forming equipment

2011-01-04

2011-01-04

Bonk, Teresa M (Department: 3725)

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

C072S405060, C072S466900, C100S269010

Reexamination Certificate

active

07861569

ABSTRACT:
A reaction device for forming equipment includes a base, a reaction member movably spaced therefrom by guides, and a return gas spring carried by the base and operatively engaged to the reaction member for yieldably biasing the reaction member away from the base. The base has a return gas spring passage and guide shaft passages spaced apart therefrom. A return gas spring is received in the return gas spring passage of the base, and has a piston rod with an end arranged for contact with the reaction member. The guides include guide shafts arranged for engagement with the reaction member and disposed in guide bushings, which are received in the guide shaft passages of the base and preferably project below the base for use in locating the reaction device on the forming equipment.

REFERENCES:
patent: 5113746 (1992-05-01), Yuda
patent: 5245904 (1993-09-01), Meyerle
patent: 5275387 (1994-01-01), Cotter et al.
patent: 5303906 (1994-04-01), Cotter et al.
patent: 5918708 (1999-07-01), Yuda, Jr.
patent: 6848290 (2005-02-01), Pyper et al.
patent: 2004/0069041 (2004-04-01), Pyper et al.
patent: 1 285 774 (1972-08-01), None
patent: 2003 0037643 (2003-05-01), None
patent: WO 2004/048802 (2004-06-01), None

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