Cutting – With product handling means – Means to move – guide – or permit free fall or flight of product
Reexamination Certificate
2005-02-01
2011-10-25
Nguyen, Phong H (Department: 3724)
Cutting
With product handling means
Means to move, guide, or permit free fall or flight of product
C083S684000, C083S696000
Reexamination Certificate
active
08042442
ABSTRACT:
A cutting tool, particularly for steel sheet billets, having a cutting blade fastened to a blade holder and a pressure cushion which is arranged on sides of the blade holder and, when the cutting blade penetrates into the material to be punched, is pressed onto the latter in the area of the useful punched part. During the passage of the cutting blade, a high-quality edge of the useful punched part is largely kept free of an interfering burr and elevation formation by the pressure cushion material being displaced radially outward during the punching stroke, such that the cutting blade is acted upon by pressure in the lateral direction under an increasing elastic deflection of the cutting blade edge.
REFERENCES:
patent: 771669 (1904-10-01), Schneegass
patent: 2191709 (1940-02-01), Dedrick
patent: 2850096 (1958-09-01), Berlin et al.
patent: 3048069 (1962-08-01), Berlin et al.
patent: 3137188 (1964-06-01), Domka
patent: 3181405 (1965-05-01), Coy
patent: 3205750 (1965-09-01), Strange
patent: 3396620 (1968-08-01), Raphael et al.
patent: 3411208 (1968-11-01), Malm
patent: 3492903 (1970-02-01), Malm
patent: 3827322 (1974-08-01), Saunders et al.
patent: 3847036 (1974-11-01), Miller
patent: 4306476 (1981-12-01), Saunders et al.
patent: 4444075 (1984-04-01), Mulry
patent: 4499802 (1985-02-01), Simpson
patent: 4607553 (1986-08-01), Hartzell
patent: 4790223 (1988-12-01), Busch
patent: 5111725 (1992-05-01), Simpson et al.
patent: 5676032 (1997-10-01), Johnson
patent: 6408729 (2002-06-01), Johnson
patent: 6779426 (2004-08-01), Holliday
patent: 2003/0000354 (2003-01-01), Workman et al.
patent: 493 313 (1969-01-01), None
patent: 1 782 213 (1959-02-01), None
patent: 36 30 287 (1986-09-01), None
patent: 101 40 496 (2001-08-01), None
patent: 0 331 605 (1989-09-01), None
patent: 03278466 (1993-04-01), None
patent: 1170174 (1956-09-01), None
patent: 05 092398 (1993-04-01), None
International Search Report, filed Aug. 1, 2003.
German Search Report, filed Mar. 12, 2003.
Hemper Roland
Kirschner Robert
Bayerische Motoren Werke Aktiengesellschaft
Crowell & Moring LLP
Nguyen Phong H
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