Equipment for cold-drawing a metal wire

Metal deforming – Tool and/or tool holder – Tool comprising closed periphery deforming passageway

Reexamination Certificate

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C072S274000

Reexamination Certificate

active

10530175

ABSTRACT:
Equipment for cold-drawing a metal wire. The equipment includes a succession of a sleeve with a cylindrical hole and a threading die with a conical hole. The sleeve is inserted into a support and terminates with an extension inserted into the conical hole of the threading die. The support has a first annular projection and the threading die has a second annular projection coupled to the first projection so as to keep the sleeve and the threading die in position.

REFERENCES:
patent: 2029039 (1936-01-01), Simons
patent: 2088040 (1937-07-01), Simons et al.
patent: 3080962 (1963-03-01), Fleischmann et al.
patent: 3752614 (1973-08-01), Bremer
patent: 4790165 (1988-12-01), Lievens et al.
patent: 5402664 (1995-04-01), Sarver et al.
patent: 6374659 (2002-04-01), Bellina
patent: 0013012 (1980-07-01), None
patent: 1230396 (1991-10-01), None
patent: MI99U/000587 (1999-09-01), None
Patent Abstracts of Japan, vol. 1997, No. 7, Jul. 31, 1997, 3 pgs. & JP 09 057333 A (Showa Electric Wire & Amp . . . ).

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