Metal deforming – With cutting – By shearing tool-couple
Reexamination Certificate
2006-09-11
2009-12-08
Ross, Dana (Department: 3725)
Metal deforming
With cutting
By shearing tool-couple
C072S336000, C072S379200
Reexamination Certificate
active
07628050
ABSTRACT:
A press-working method comprises: cutting out a member with a predetermined shape from a sheet material, the member having a longitudinal direction; bending the member with the predetermined shape to form a bottom portion and a wall portion extending at an angle from the bottom portion as seen in a direction along the longitudinal direction such that the bottom portion has an arched surface as seen in a side view, using at least one plunger and at least one die, wherein an edge of the wall portion is allowed to expand along the plunger and the die while changes in a thickness of the wall portion is controlled by the plunger and the die, and wherein the step of cutting out a member is performed such that the wall portion has an edge with a preset shape after the bending step.
REFERENCES:
patent: 1761888 (1930-06-01), Junkers
patent: 1965716 (1934-07-01), Thoms et al.
patent: 1991689 (1935-02-01), McClintock
patent: 2166226 (1939-07-01), Vehko
patent: 2377974 (1945-06-01), Sherman
patent: 2947344 (1960-08-01), Springer
patent: 3156034 (1964-11-01), Gruetjen
patent: 4403495 (1983-09-01), Talbot
patent: 4545170 (1985-10-01), Shirey
patent: 6378351 (2002-04-01), Ouchi et al.
patent: 6553805 (2003-04-01), Gruber
patent: 2001/0052255 (2001-12-01), Arai
patent: 06-142776 (1994-05-01), None
patent: 2002102934 (2002-04-01), None
patent: 2003278176 (2003-10-01), None
Inoue Hirofumi
Nishi Toshio
Kubota Corporation
Ross Dana
Sullivan Debra M
The Webb Law Firm
LandOfFree
Press-working method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Press-working method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Press-working method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4147813