Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707) |
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02/05/1985 | US4497196 Apparatus for performing operations on strip material |
01/29/1985 | US4495699 Hole punch apparatus |
01/23/1985 | EP0131770A1 Method of fine-cutting work pieces, and fine-cutting tool for carrying out the method |
01/22/1985 | CA1181442A1 Clamping apparatus |
01/02/1985 | EP0129866A1 Stamping press including device for storing and changing tools |
01/02/1985 | EP0129859A1 Machine tool, in particular a turret cutting press |
12/19/1984 | EP0128870A1 Device for the fine-cutting of openings in a ball-bearing cage |
12/19/1984 | EP0128486A1 Lower tool-input of a stamping machine, especially for inserting a die |
12/11/1984 | US4487566 Punching tool having interchangeable punches |
12/11/1984 | US4486941 Punch press with automatic tool changer |
12/04/1984 | US4485709 Apparatus for punching holes in a moving strip |
12/04/1984 | US4485708 Punching devices |
12/04/1984 | US4485707 Method of conveying sheets, and blanking die assembly in a pinch press |
12/04/1984 | US4485661 Deep-drawing end edge-trimming die |
12/04/1984 | US4485549 Apparatus for changing the tools of a punch press |
11/22/1984 | WO1984004571A1 A method and apparatus for briefly storing and impulsively releasing mechanical energy |
11/21/1984 | EP0125540A2 Apparatus for making tubes with holes in the walls |
11/20/1984 | US4483173 Device for the automatic regulation of the push rods of a stamping press |
11/20/1984 | US4483170 Press machine structure |
11/20/1984 | CA1178193A1 Mechanical punch driver |
11/20/1984 | CA1178130A2 Double action press having floating punch |
11/14/1984 | EP0124746A1 Punching machine |
11/13/1984 | US4481700 Panel punch |
10/23/1984 | US4478122 Punch head for a punch press |
10/16/1984 | US4477537 Method for producing burr-free blanks and the blanks produced thereby |
10/09/1984 | US4475424 Blanking apparatus |
10/03/1984 | EP0120747A1 Tubular framework for vehicle seats |
10/02/1984 | CA1175341A1 Tool and process for precision cutting |
09/27/1984 | WO1984003647A1 Method for fabricating punched pieces with material saving |
09/18/1984 | US4471680 Cam slide unit |
09/18/1984 | US4471676 Machine tool including workpiece clamp sensor |
09/04/1984 | US4469572 Method of continuously processing a band-shape material |
09/04/1984 | US4468995 Apparatus for manufacturing frames from aluminum profile rails |
09/04/1984 | CA1173739A1 Method and apparatus for perforating metal strip |
08/22/1984 | EP0116447A1 Apparatus for performing operations on strip material |
08/21/1984 | US4466320 Rotary die cutter |
08/21/1984 | US4466317 Method and apparatus for safety for presses |
08/14/1984 | US4464920 Machine for roller forming metal louvers |
08/08/1984 | EP0115340A2 Sectional steel machining installation |
07/31/1984 | US4462291 Punching or pressing machine |
07/25/1984 | EP0114112A2 Method of mounting an eccentric tool retainer to a die shoe |
07/24/1984 | US4461068 Automatic slotting apparatus with tool changing device |
07/03/1984 | US4457196 Punch press assembly including a preloaded encapsulted spring |
07/03/1984 | CA1170106A1 Method for pressing of articles and device for its realization |
06/19/1984 | CA1169352A1 Heat exchanger ribbon slitting device and method |
06/13/1984 | EP0110566A2 Reduction of rupture strength of electrolytic capacitor cans |
05/29/1984 | CA1168148A1 Press apparatus having resilient stop blocks |
05/23/1984 | EP0108935A2 Stamping machine having a multiple punch |
05/08/1984 | US4446623 Notching tool |
05/01/1984 | US4445272 Method and apparatus for stacking rotor blanks on a shaft |
04/25/1984 | EP0106774A2 Arrangement of turrets for punching machines |
04/24/1984 | US4444380 Centering and grasping device |
04/18/1984 | EP0105841A1 Strip used for manufacturing supports of components for watches |
04/10/1984 | US4441391 Apparatus for severing an article from a carrier and for positioning the severed article |
04/04/1984 | EP0104509A2 A machine tool for working sheet metal |
03/28/1984 | EP0103885A2 Punching and bending machine |
03/20/1984 | US4437214 Non-machining method of manufacturing a solid-bottomed or internally flanged bearing race |
03/14/1984 | EP0102646A1 Combined shear and punch press |
03/14/1984 | EP0102620A2 Punch and ram assembly for punch press |
03/14/1984 | EP0102429A1 Compound die assembly |
03/06/1984 | US4435143 Small blank feeder and tray former |
03/06/1984 | US4434693 Plate positioning apparatus |
02/28/1984 | US4433465 Process for manufacturing universal joint |
02/22/1984 | EP0101252A2 A punch and winding machine |
02/14/1984 | US4431172 Device for absorbing punching shock in a press |
02/14/1984 | CA1162142A1 Shock dampening system for presses |
02/08/1984 | EP0100283A2 Universal sheet metal holder |
02/08/1984 | EP0100282A1 A bridge type punch press |
02/07/1984 | US4429560 Apparatus for making a transition plate for a mine roof truss |
01/24/1984 | US4426899 Apparatus for punching holes in tubing |
01/17/1984 | US4425829 Punch apparatus |
01/03/1984 | US4423859 Impact damper |
01/03/1984 | US4423546 Punch press with automatic tool changer |
01/03/1984 | CA1159763A1 Notching tool |
01/03/1984 | CA1159719A1 Method for producing lids from sheet-metal, more particularly from iron or steel sheet, for containers, especially cans |
12/27/1983 | US4422628 Clamping apparatus |
12/27/1983 | CA1159359A1 Punch retainer |
12/20/1983 | US4420964 Method of and apparatus for the pressworking of articles |
12/06/1983 | US4418595 Automatic hollow punch search method for die-cutting machines, particularly for footwear production |
11/29/1983 | CA1157820A1 Mandrel jaw and method of manufacture |
11/23/1983 | EP0094927A1 Device for supplying plate-shaped workpieces to a machine tool |
11/08/1983 | CA1156548A1 Adjustable power press |
11/01/1983 | US4412469 Turret punch presses having tool holders rotatably mounted in the turrets |
10/25/1983 | CA1155758A1 Adjustable punch head |
10/18/1983 | CA1155464A1 Clamping apparatus for machine tools |
10/18/1983 | CA1155321A1 Puncher-riveter |
10/12/1983 | EP0091350A1 Remotely manipulable device for cutting plates and tubes in dangerous surroundings |
10/04/1983 | US4407614 Apparatus for perforating a workpiece |
10/04/1983 | CA1154667A1 Actuator mount for power shear or punch |
09/20/1983 | US4404835 Tool |
09/14/1983 | EP0088152A1 A tube punching and/or bending assembly, particularly for punching holes having axes transversely to one another and/or for bending a tube with curves not coplanar to one another |
09/13/1983 | US4403489 Strip winding machine and method |
09/13/1983 | US4403417 Draw punch |
09/06/1983 | US4402240 Heat exchanger ribbon slitting device and method |
08/30/1983 | US4400966 Tool for forming a lateral opening in a tube |
08/30/1983 | US4400964 Method and device for continuous production of flanged hollow article |
08/30/1983 | US4400861 Fabrication of seismic springs from sheets |
08/03/1983 | EP0084568A1 Iron core laminate manufacturing apparatus |
08/02/1983 | US4396185 Clamping apparatus for machine tools |
08/02/1983 | US4395929 Method and stamping tool for waste-free stamping of packaging strips and packaging strips so fabricated |