Metal deforming – Tool and/or tool holder – Tool comprising closed periphery deforming passageway
Reexamination Certificate
2006-10-13
2009-06-02
Ross, Dana (Department: 3725)
Metal deforming
Tool and/or tool holder
Tool comprising closed periphery deforming passageway
C072S274000
Reexamination Certificate
active
07540181
ABSTRACT:
Various embodiments of the present invention are directed to wire-drawing die assemblies. In one embodiment, a wire-drawing die assembly includes an assembly of at least three die segments. Each of the die segments includes an inner die surface comprising a superhard material. The inner die surfaces of the die segments form a die cavity. In another embodiment, a wire-drawing die assembly includes an assembly of die segments, each of which includes an inner die surface. The inner die surfaces of the die segments form a die cavity. Each of the die segments further includes two sidewalls, with the inner die surface extending between the two sidewalls. At least a portion of each of the two sidewalls may be oriented nonparallel relative to a wire-drawing axis of the die cavity.
REFERENCES:
patent: 1551751 (1925-09-01), Kozak
patent: 1597927 (1926-08-01), Simons
patent: 3110625 (1963-11-01), Bettner
patent: 3823598 (1974-07-01), Freeman
patent: 4046103 (1977-09-01), Yakuboff
patent: 4281617 (1981-08-01), Bevers et al.
patent: 4426954 (1984-01-01), Keller
patent: 4454657 (1984-06-01), Yasumi
patent: 4534934 (1985-08-01), Cho
patent: 4624817 (1986-11-01), Gusack et al.
patent: 5449408 (1995-09-01), Koaizawa et al.
patent: 5849083 (1998-12-01), Milliman
patent: 5851137 (1998-12-01), Bhave et al.
patent: 6314836 (2001-11-01), Einset et al.
patent: 6810712 (2004-11-01), Goto
patent: 6969313 (2005-11-01), Sung
patent: 7060641 (2006-06-01), Qian et al.
Ross Dana
Sullivan Debra M
US Synthetic Corporation
Workman Nydegger
LandOfFree
Wire-drawing die assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wire-drawing die assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wire-drawing die assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4146539