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Class Information
Number: 83/637
Name: Cutting > Means to drive or to guide tool > With simple rectilinear reciprocating motion only > With spaced guide pins (e.g., die set leader pins)
Description: Apparatus wherein two or more guide members are provided to align a punch and die.

Patents under this class:

Patent Number Title Of Patent Date Issued
7343770 Stamping system for manufacturing high tolerance parts Mar. 18, 2008
7201101 Punch capable of punching an object at four directions Apr. 10, 2007
6761099 Venetian blind cutting machine capable of clamping the slats automatically Jul. 13, 2004
6622603 Linear via punch Sep. 23, 2003
6041639 Method and apparatus for stretch-forming and shearing sheet metal Mar. 28, 2000
5823087 Punch press having a toggle joint mechanism drive Oct. 20, 1998
5490317 Tapered alignment guide arrangement for self aligning part excision die members in tape automated bonding apparatus Feb. 13, 1996
5245904 Non-skid ball bearings with adjustable stroke for punch presses Sep. 21, 1993
4945954 Method and apparatus for aligning mating form tools Aug. 7, 1990
4836071 Modular punch apparatus for punching complex shapes from a metal ribbon or tape Jun. 6, 1989
4726273 Combination press for die-sets Feb. 23, 1988
4638704 Press device having means to enable ram and bolster to be removed as a unit Jan. 27, 1987
4604930 Punch press Aug. 12, 1986
4583438 Piercing unit with rotating head Apr. 22, 1986
4494432 Interchangeable cutter mechanism Jan. 22, 1985
4485708 Punching devices Dec. 4, 1984
4377957 Joined blanking tool Mar. 29, 1983
D255577 Guide post assembly for tools Jun. 24, 1980
D255576 Guide post assembly for tools Jun. 24, 1980
4129054 Punching press Dec. 12, 1978
4104941 Assembly for enabling close tolerance punching with a reusable system Aug. 8, 1978
4086837 Stamping and cutting die-set with interchangeable die-plates May. 2, 1978
4056029 Electrically actuated power press Nov. 1, 1977
4022090 Electrically actuated punch press May. 10, 1977
4017267 Method of die construction using joint structure Apr. 12, 1977
4004448 Automatic die safety lock for a metal stamping die Jan. 25, 1977
4003283 Die set with two-part leader pins and ball bearing guide Jan. 18, 1977
3973427 Mold changing apparatus for a press machine Aug. 10, 1976
3971275 Nestable die alignment means for punch press machines Jul. 27, 1976
3948129 Press incorporating a device for quick interchange of tools Apr. 6, 1976
3939747 Profile press and precision cutting apparatus with a pressure multiplier Feb. 24, 1976
3933071 Shearproof punch Jan. 20, 1976

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