| Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707) |
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| 07/22/1992 | EP0495054A1 Cutting and forming machine with an adjusting device located in a mobile machine part |
| 07/21/1992 | US5131303 Punch assembly |
| 07/08/1992 | EP0493411A1 Method and apparatus for aligning mating form tools. |
| 07/01/1992 | EP0492428A2 Device for punching strips of foils or sheets |
| 07/01/1992 | EP0491978A1 Cylinder block for internal combustion engine |
| 07/01/1992 | EP0491774A1 Turret punch press |
| 07/01/1992 | EP0491747A1 Combination punch press and laser cutting machine. |
| 07/01/1992 | EP0491727A1 Combination punch press and laser cutting machine. |
| 06/30/1992 | US5125255 Method of making an electromagnetic coupling disc |
| 06/23/1992 | US5123271 Method for removing workpart blanks from sheet-metal strip |
| 06/23/1992 | US5123155 Apparatus and method for manufacturing laminated parts |
| 06/17/1992 | EP0490586A1 Method and apparatus for punching holes in a substrate |
| 06/16/1992 | US5121810 Muffler cover |
| 06/11/1992 | DE4130243A1 Tube-notching machine - has eccentric drive working in horizontal direction |
| 06/09/1992 | US5119666 Turret punch press |
| 06/09/1992 | CA1302868C Upper tool support for a stamping machine or the like |
| 06/02/1992 | CA1302171C Method for blanking thin sheets, and in particular metal sheets and elastomeric material of utility for said method |
| 05/27/1992 | EP0487456A1 Method and device for advancing a band or a strip, in particular for cutting blanks |
| 05/27/1992 | EP0486594A1 Flexible linear explosive cutting or fracturing charge |
| 05/19/1992 | US5113736 Electromagnetically driven punch press with magnetically isolated removable electromagnetic thrust motor |
| 05/14/1992 | WO1992000186A3 Electromagnetically driven punch press with magnetically isolated removable electromagnetic thrust motor |
| 05/14/1992 | DE4135787A1 Blanking press for sheet metal or plastics etc. - produces hole patterns and controls number of punches using CPU |
| 05/13/1992 | EP0484789A1 Method and device for producing holes in the wall of a hollow bodied workpiece |
| 05/13/1992 | EP0484588A1 Die including slide cam |
| 05/07/1992 | DE4035938A1 Press tool with multiple movements - has secondary punch and secondary die which can be moved independently of main punch and die |
| 04/29/1992 | EP0482216A1 Complex machine tool |
| 04/29/1992 | EP0481971A1 Signature analysis control system for a stamping press. |
| 04/28/1992 | US5108816 Punch made of heterogenous composite elastic material |
| 04/22/1992 | EP0481426A2 Tooling control mechanisms for stamping and forming die assemblies |
| 04/21/1992 | US5105696 Method and apparatus for punching a cross hole |
| 04/15/1992 | EP0480057A1 Interference prevention system of machining head |
| 04/08/1992 | CN1060046A Punching-shearing method of interlocked cutting for motor silicon steel plate and its mould |
| 04/07/1992 | US5101705 Die including slide cam |
| 04/07/1992 | US5101566 Tool for punching weep holes in window sill cans |
| 04/02/1992 | WO1992004995A1 Method of side-cutting by turret punch press |
| 03/31/1992 | US5099708 Adjustable rolling cam slider |
| 03/31/1992 | US5099671 Combination braking, punching and shearing apparatus for forming sheet metal strips |
| 03/31/1992 | CA1298071C Method and apparatus for body panel attachment |
| 03/24/1992 | US5098652 Precision parts of non-magnetic stainless steels |
| 03/24/1992 | US5098071 Die spring apparatus |
| 03/19/1992 | WO1992004146A1 Key duplicator |
| 03/18/1992 | EP0475469A2 Machine suitable for automatically transforming bands of metal sheet into beams that are bent longitudinally according to electronically programmable profiles, as well as punched, drawn and bent transversally |
| 03/17/1992 | US5096036 Electromagnetic coupling discs and method of making the same |
| 03/17/1992 | US5095725 Press and actuator using piezoelectric element |
| 03/17/1992 | US5095618 Mechanical force enhancer |
| 03/10/1992 | CA1296995C Method and arrangement for producing knockouts for electrical equipment cabinets |
| 02/27/1992 | DE4026959A1 Electrically driven unit with thrust rod - moves in cylindrical pipe with spindle, cover, hole and piston |
| 02/26/1992 | EP0472200A2 A punch press and a tool magazine for the press |
| 02/25/1992 | US5090282 Method of and apparatus for reducing the punching stress of a punching machine having fixed abutments |
| 02/20/1992 | WO1992002361A1 Cutting and forming machine with an adjusting device located in a mobile machine part |
| 02/19/1992 | CN1015514B Pressing machine for mfg. metal product |
| 02/11/1992 | US5087849 Laminated parts and a method for manufacture thereof |
| 02/11/1992 | US5086633 Opposed motion, momentum balanced-at-impact punch press |
| 02/06/1992 | WO1992001522A1 Tool selection method for punch press machine |
| 02/04/1992 | CA1295234C Piercing die |
| 02/04/1992 | CA1295113C Method of attaching a female element to a panel and installation apparatus |
| 01/30/1992 | DE4025518C1 Tool inserts in rolls - form punches and dies for perforating paper, and are held in place by screws |
| 01/29/1992 | CN1015331B Apparatus for correctly feeding continuous strip with a shaped side outline to blanking machine |
| 01/23/1992 | WO1992000818A1 Horizontally-oriented, opposed motion, balanced-at-impact punch press |
| 01/23/1992 | CA2085906A1 Horizontally-oriented, opposed motion, balanced-at-impact punch press |
| 01/21/1992 | USRE33798 Self-equalizing piercing machine |
| 01/14/1992 | US5079983 Replaceable head for magnetic repulsion punch |
| 01/09/1992 | WO1992000186A2 Electromagnetically driven punch press with magnetically isolated removable electromagnetic thrust motor |
| 01/09/1992 | CA2085225A1 Electromagnetically driven punch press with magnetically isolated removable electromagnetic thrust motor |
| 01/07/1992 | US5078001 Manufacture, slitting, and reeling of two-out terminal strip |
| 01/07/1992 | US5077998 Machine tool |
| 01/02/1992 | EP0463321A2 Scroll shearing |
| 01/01/1992 | CN2091729U Punching die with sharp arc edge and without counterdie |
| 12/31/1991 | US5076127 Revolving cutting press with a rotatable tool |
| 12/31/1991 | US5076090 Dual action equalizing apparatus |
| 12/19/1991 | DE4119546A1 Formation of passageway in servo-cylinder wall - uses press tool with narrowed tip having curved section to produce uniform curved passageway entrance |
| 12/18/1991 | CN2090744U Laminated blanking die |
| 12/17/1991 | US5072620 Stamping tool |
| 12/11/1991 | EP0460623A2 A system for assorting small product pieces cut from work sheets |
| 12/10/1991 | US5071056 Method of making brake shoes |
| 12/10/1991 | US5070719 Tooling control mechanisms for stamping and forming die assemblies |
| 12/10/1991 | US5070593 Punch press |
| 12/05/1991 | WO1991018690A2 Turret punch press |
| 11/28/1991 | WO1991017846A1 Composite machine tool |
| 11/27/1991 | EP0261119B1 Explosive cutting means |
| 11/26/1991 | CA1292422C Upper tool support for a stamping machine or the like |
| 11/20/1991 | CN2088910U Winder for punching notch |
| 11/19/1991 | US5065654 Machine for punching and shearing angle iron and flat stock |
| 11/14/1991 | WO1991017005A1 Apparatus for producing a blank from stock material |
| 11/13/1991 | EP0456393A1 Head assembly for magnetic repulsion punch |
| 11/12/1991 | US5063804 Offset punch press assembly for structural beams |
| 11/07/1991 | DE4111398A1 Stamping press for sheet metal - has table with adjustable stops to locate sheet metal blank |
| 11/06/1991 | EP0455164A1 A turret punch press with a die exchanging device |
| 11/06/1991 | CN2088004U Punching die for corrugated steel |
| 11/05/1991 | US5062337 Indexable multi-tool for punch press |
| 11/05/1991 | US5062289 Bending tooling for bending flat blanks |
| 10/31/1991 | WO1991016172A1 Interference prevention system of machining head |
| 10/22/1991 | CA1291025C Punching method and apparatus for making a bowed external spring retaining ring |
| 10/11/1991 | WO1991015313A1 Ball lock punch retainer |
| 10/08/1991 | US5054353 Blanking press |
| 10/08/1991 | US5054305 Multiple function hydraulic apparatus |
| 10/03/1991 | WO1991014520A1 Punch press |
| 10/01/1991 | US5053601 Process and apparatus for producing welded stamped parts |
| 10/01/1991 | US5052257 Mass forces balancing apparatus in a machine having a crank shaft drive, specifically a punching machine |
| 10/01/1991 | US5052208 Machine tool |