Coldwork tool assembly

Details Coldwork tool assembly Coldwork tool assembly

2006-12-08

2008-10-21

Banks, Derris H (Department: 3725)

Metal deforming

By relatively movable offset tool-faces

With tool motion in fixed path

C072S370070, C072S466400, C029S523000

Reexamination Certificate

active

07437904

ABSTRACT:
A coldwork tool assembly including an outer housing and an inner housing in telescopic arrangement with each other and a retaining collar configured to accommodate a plurality of mandrel configurations. One of a plurality of various mandrels is removably coupled to the inner housing using the retaining collar to secure the mandrel to the inner housing as the inner housing moves between a contracted and an expanded position relative to the outer housing.

REFERENCES:
patent: 2473913 (1949-06-01), Shaff
patent: 4557033 (1985-12-01), Champoux
patent: 5433100 (1995-07-01), Easterbrook et al.
patent: 5953952 (1999-09-01), Strickland
patent: 6698268 (2004-03-01), Woods et al.
patent: 2006/0219440 (2006-10-01), MacKay et al.
patent: 1872895 (2008-01-01), None
International Search Report and Written Opinion on corresponding PCT application (PCT/US2007/023597) from International Searching Authority (EPO) mailed Apr. 15, 2008.

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