Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707) |
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07/12/1983 | US4392400 Trimming and piercing apparatus |
07/05/1983 | US4391174 Punch press machine with adjustable tool positioning |
07/05/1983 | US4391123 Automatic punching machine |
07/05/1983 | US4391118 Mechanism for forming a hole through a forged workpiece |
06/29/1983 | EP0082537A1 Method of making packets of sheet blanks and device for carrying it out |
06/28/1983 | US4389764 Method for the production and assembly of lock parts |
05/17/1983 | CA1146343A1 Apparatus for punching and winding of motor and transformer cores |
05/10/1983 | US4382395 Loading device for a machine tool, particularly for machining panels of sheet metal or other materials |
05/10/1983 | CA1146062A1 Turret punch presses |
04/26/1983 | US4380871 Mechanical punch driver |
03/30/1983 | EP0075152A2 Improved punch apparatus |
03/22/1983 | US4377100 Punch retainer |
03/22/1983 | US4377084 Press apparatus having resilient stop blocks |
03/08/1983 | US4375775 Stamping press die support mounting |
03/08/1983 | US4375774 Adjustable punch head |
03/01/1983 | CA1141996A1 Die finish-cutting machine |
02/15/1983 | US4373413 Punch press apparatus for placement and alignment of a knife holder |
01/25/1983 | US4369907 Punching and riveting machine |
01/25/1983 | US4369682 Rotary die cutters having magnetically-attracted waste ejector |
01/11/1983 | CA1139216A1 Draw punch |
12/21/1982 | US4364527 Tension take-up and speed control |
12/21/1982 | US4364281 Driving mechanism for tool slides of punching and bending machines |
12/14/1982 | US4363253 Automatic hollow punch research device and relevant control, for die-cutting machines, particularly for footwear production |
12/07/1982 | US4362078 Method of blanking |
11/16/1982 | CA1135618A1 Turret index system |
11/09/1982 | CA1135175A1 Method and apparatus of feeding material for progressive punching |
11/02/1982 | US4356719 Mandrel jaw and method of manufacture |
11/02/1982 | CA1134589A1 Beveled lobe anti-skid grating and method of manufacturing same |
10/26/1982 | US4355530 Punching machine for making different products at the same step |
10/14/1982 | WO1982003491A1 Iron core laminate manufacturing apparatus |
10/13/1982 | EP0062562A1 Method and device for the automatic control of the press rams by means of cylinders with self blocking piston rods |
10/12/1982 | US4353164 Draw punch |
09/28/1982 | USRE31042 Laser cutting head attachment for punch presses |
09/22/1982 | EP0060397A1 Punching tool for the wasteless blanking of packing strips |
09/22/1982 | EP0060355A1 Apparatus for producing a blank from stock material |
09/08/1982 | EP0059432A2 Press machine |
08/24/1982 | US4345744 Working machine with flame cutter and cooling unit |
08/17/1982 | US4344342 Method for the manufacture of washers and the like |
08/17/1982 | CA1129759A1 Automatic punching and bending machine |
08/10/1982 | US4343210 Punch press |
08/03/1982 | US4342214 Pilot assembly for progressive die machines |
07/27/1982 | US4341137 Material forming apparatus |
07/27/1982 | US4341105 Force multiplier for punch presses |
07/20/1982 | US4339976 Punch retainer |
07/20/1982 | US4339975 Shock dampening system for presses |
07/20/1982 | CA1127910A1 Method and apparatus for producing a blank from stock material |
07/14/1982 | EP0055880A2 Punching and nibbling machine having die-carrying turrets with horizontal and parallel axes |
07/13/1982 | CA1127528A2 Pneumatic press |
07/13/1982 | CA1127525A1 Toothed plate connectors |
06/23/1982 | EP0054395A2 Method and apparatus for perforating metal strip |
06/08/1982 | US4333329 Cross transport press |
06/01/1982 | US4332179 Combined punch retainer and fluid-actuated stripper |
05/25/1982 | US4331049 Numerically controlled automatic notching press |
05/11/1982 | US4328695 Punch adaptor for folding machine |
05/11/1982 | US4328665 Link for steel sprocket chains |
05/04/1982 | US4327642 Inserts for cutting charges |
04/13/1982 | CA1121662A1 Punch press machine with adjustable tool positioning |
03/30/1982 | US4322191 Die finish-cutting machine |
03/23/1982 | US4320676 Blanking press having stripping means |
03/23/1982 | US4320647 Method of and apparatus for making elements with profiled cross-section from sheet metal |
03/23/1982 | US4320645 Apparatus for fabricating electrical equipment |
03/16/1982 | US4319504 Damping device for abruptly occurring forces in a shear or shear press machine |
03/10/1982 | EP0046929A2 Treating machine with a thermic cutting-ray device |
03/09/1982 | CA1119673A1 Laser cutting head attachment for punch presses |
03/02/1982 | US4317351 Methods of and/or apparatus for punching holes in sheet metal |
02/24/1982 | EP0046310A1 Axial air gap motor |
02/23/1982 | US4316399 Combined punch retainer and fluid actuated stripper |
02/23/1982 | US4316317 Method and apparatus for adjusting roller rings on a shaft |
02/16/1982 | US4315356 Forming expanded mesh sheet from deformable strip |
01/26/1982 | CA1116996A1 Device for punching holes in tubing |
01/19/1982 | US4311086 System for damping abrupt movement of a punch press ram |
01/19/1982 | US4310939 Method of producing semicircular washers having a projection to prevent rotation |
01/13/1982 | EP0043389A1 Tool and method for precision cutting |
01/12/1982 | US4310114 Control arrangement for dual slide pneumatic feeders |
01/12/1982 | US4309951 Method for deburring sheet metal parts, such as can covers |
12/23/1981 | EP0042047A1 Method of, and apparatus for, constructing a laminated rotor |
12/23/1981 | EP0042046A1 Method of, and apparatus for, manufacturing laminated dynamoelectric machine structures |
12/15/1981 | CA1114241A1 Forming expanded mesh sheet from deformable strip |
12/01/1981 | US4302961 Press or similar machine tool |
11/11/1981 | EP0039577A1 Method and apparatus for pressworking a workpiece or material |
11/10/1981 | US4299110 Method for forming a hole through a forged workpiece |
11/03/1981 | US4297866 Asymmetrical shaping of slit segments of meshes formed in deformable strip |
10/21/1981 | EP0038199A1 Turret punch press |
10/21/1981 | EP0038198A1 Workpiece clamp |
10/15/1981 | WO1981002861A1 Workpiece clamp |
10/15/1981 | WO1981002860A1 Improved turret |
10/13/1981 | US4294396 Method for manufacturing brazed parts |
10/07/1981 | EP0037154A1 Process for inserting gold dot in electrical terminals |
10/07/1981 | EP0037096A2 Device working like a stamp or press |
10/06/1981 | US4292869 Unitary punch and die assembly |
09/29/1981 | US4291443 Forming expanded mesh sheet from deformable strip |
09/22/1981 | US4290294 Method for producing aerosol can tops |
09/22/1981 | US4290251 Storm sashes and method and apparatus for manufacturing |
09/03/1981 | WO1981002399A1 Blank and draw press tool |
08/26/1981 | EP0034406A1 Rotary die cutters |
08/25/1981 | US4285754 Method and apparatus for producing planar elements in the construction of surfaces and bodies |
08/25/1981 | US4285259 Turret index system |
08/18/1981 | US4283978 Notching machine |
08/11/1981 | CA1106753A1 Shock dampening systems for presses |
08/11/1981 | CA1106703A1 Asymmetrical shaping of slit segments of meshes formed in deformable strip |