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Class Information
Number: 83/140
Name: Cutting > With product handling means > Means to move, guide, or permit free fall or flight of product > Means to move product out of contact with tool > Moving stripper timed with tool stroke > Carried by moving tool element or its support > Stripper biased against product > By spring means
Description: Device in which the compressed or extended element is an elongated or coiled flexible and resilient metallic member (e.g., coil spring).










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8616038 Two-piece guide pin and method Dec. 31, 2013
8375834 Die assembly Feb. 19, 2013
8225702 Stripping device Jul. 24, 2012
8087333 Method for press punching a hole in sheet metal and press die Jan. 3, 2012
7958807 Upper tool device and punch therefor Jun. 14, 2011
7954404 Punch device with adjustment subassembly as retrofit insert or as original equipment Jun. 7, 2011
7802506 Upper tool device and punch therefor Sep. 28, 2010
7698979 Biasing assembly for a punching device Apr. 20, 2010
7658134 Punch with self-contained punch recess adjustment indexing Feb. 9, 2010
6895849 Stripper plate retention system May. 24, 2005
6755103 Ball-lock insert assemblies Jun. 29, 2004
6755104 Stripper plate supporting assembly Jun. 29, 2004
6513411 Die block assembly with clearance protection mechanism Feb. 4, 2003
6289709 Gutter outlet punch Sep. 18, 2001
6205901 Quick tool change for punch Mar. 27, 2001
6199464 Method and apparatus for cutting a substrate Mar. 13, 2001
6176172 Table-top coffee vending machine and method Jan. 23, 2001
6047621 Quick change adjustable punch tool assembly and method of adjustment Apr. 11, 2000
6035752 Scrap cutter assembly Mar. 14, 2000
5979277 Method and apparatus for punching a thin metal tape to provide a lead frame for a semiconductor device Nov. 9, 1999
5943934 Cutting device with movable punch Aug. 31, 1999
5896795 Scrap cutter assembly Apr. 27, 1999
5884546 Punch unit Mar. 23, 1999
5839341 Punch unit Nov. 24, 1998
5832798 Punch unit Nov. 10, 1998
5813301 Punching tool Sep. 29, 1998
5701790 Upper tool for a press Dec. 30, 1997
5658421 Punch and reinforcement device Aug. 19, 1997
5647256 Punch unit including an adjustable punch Jul. 15, 1997
5613416 Punching tool Mar. 25, 1997
5553523 Upper tool for a press Sep. 10, 1996
5517888 Cutting apparatus May. 21, 1996
5445057 Punching die with a damping member Aug. 29, 1995
5419225 Punching die May. 30, 1995
5410926 Upper tool for a press May. 2, 1995
5390575 Multiple tool for punch press Feb. 21, 1995
5375493 Method and apparatus for feeding separator sheets to a stack Dec. 27, 1994
5301580 Locking ring stripper plate assembly Apr. 12, 1994
5271303 Stripper plate retaining ring Dec. 21, 1993
5235887 Cutter apparatus Aug. 17, 1993
5195413 Shearing tool for punch presses Mar. 23, 1993
5190087 Wood cutting and splicing apparatus Mar. 2, 1993
5176057 Punch holder with stripper arrangement Jan. 5, 1993
5133237 Die punch Jul. 28, 1992
5131303 Punch assembly Jul. 21, 1992
5127293 Stripper plate retaining ring Jul. 7, 1992
5114394 Punching attachment for bag making machine May. 19, 1992
5081891 Punch assembly Jan. 21, 1992
5056392 Punch assembly Oct. 15, 1991
5054347 Punch assembly with improved disassembly features Oct. 8, 1991

1 2 3










 
 
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