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Class Information
Number: 83/698.91
Name: Cutting > Tool or tool with support > Joint or connection > For rectilinearly reciprocating tool > Tool is single element with continuous cutting edge (e.g., punch, etc.)
Description: Joint or connection wherein the tool includes a sharp edge intended to penetrate the workpiece, which sharp edge extends such that it curves back on itself without interruption.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8657594 Punch of compression molding machine Feb. 25, 2014
8651004 Chip cartridge for sheet punch Feb. 18, 2014
8631728 Radial centering surface of a stator core Jan. 21, 2014
8616107 Punching tool Dec. 31, 2013
8490529 Punch for a rotary press Jul. 23, 2013
8464620 Hole punch element Jun. 18, 2013
8459161 Ball lock punch retainer Jun. 11, 2013
8413561 Multiple punch and die assembly Apr. 9, 2013
8408111 Adjustable punch assemblies and associated adjustment methods Apr. 2, 2013
8327745 Punch assemblies and methods for modifying Dec. 11, 2012
8302521 Die with a punch module Nov. 6, 2012
8302516 Hole punching and reinforcing apparatus and method of use Nov. 6, 2012
8146470 Die stamping system Apr. 3, 2012
8061252 Hole punch element Nov. 22, 2011
7975587 Punching tool Jul. 12, 2011
7971513 Paper punch die and paper punch with such a die Jul. 5, 2011
7954404 Punch device with adjustment subassembly as retrofit insert or as original equipment Jun. 7, 2011
7926399 Punch assembly Apr. 19, 2011
7779738 Pivot punch Aug. 24, 2010
7726227 Base for a paper punch and method of forming same Jun. 1, 2010
7717021 Punch tool lift spindle May. 18, 2010
7698979 Biasing assembly for a punching device Apr. 20, 2010
7658134 Punch with self-contained punch recess adjustment indexing Feb. 9, 2010
7581475 Stripper unit for a punch retainer Sep. 1, 2009
7578224 Punching device and punching die for it Aug. 25, 2009
7343770 Stamping system for manufacturing high tolerance parts Mar. 18, 2008
7328642 Hole-punching assembly structure for hole-punching unit Feb. 12, 2008
7270042 Paper punch apparatus Sep. 18, 2007
7249551 Gasket cutter with changeable and reversible dies and punches Jul. 31, 2007
7219432 Stamping and die-cutting tool with a quick mould change design May. 22, 2007
7204181 Reversible floating punch retainer for punch change retainer tool Apr. 17, 2007
7194942 Punch structure Mar. 27, 2007
7174821 Punch for a braced die Feb. 13, 2007
7171754 Blade assembly for double end nibbler tool Feb. 6, 2007
7168356 Adjustable length punch assembly Jan. 30, 2007
7159426 Quick change assembly for hydroforming punches Jan. 9, 2007
7156009 Die device Jan. 2, 2007
7069765 Release mechanism for end forming machine Jul. 4, 2006
7036416 Hole punch quick-change die assembly with pin strap and positioning system May. 2, 2006
7007582 Die device Mar. 7, 2006
7000523 Blade holder and support member for perforator Feb. 21, 2006
6959634 Device for die cutting a stack consisting of sheet-type materials Nov. 1, 2005
6925921 Punch structure Aug. 9, 2005
6889588 Compensating blister die cutter apparatus May. 10, 2005
6880443 Device for die-cutting a stack consisting of sheet-type materials Apr. 19, 2005
6799498 Micro adjuster for paper punch die Oct. 5, 2004
6769339 Die set pin retainer Aug. 3, 2004
6755103 Ball-lock insert assemblies Jun. 29, 2004
6748839 Hole punch quick-change die assembly with positioning system Jun. 15, 2004
6725756 Two-piece metal punch construction Apr. 27, 2004

1 2 3 4 5










 
 
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