Patents for B21D 37 - Tools as parts of machines covered by this subclass (19,804) |
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12/20/1988 | US4792318 Device for warm press forming a plate-like member into a shadow mask for a color cathode ray tube |
12/20/1988 | US4791803 Die-change device for a multi-stage forming machine |
12/14/1988 | EP0295171A2 Quick tool mounting system for presses of 20 to 200 tons |
12/14/1988 | EP0294765A1 Precision punching machine and associated tool change method |
12/07/1988 | CN88105061A Method for prosessing die by coating technique |
11/29/1988 | US4787237 Failsafe tool clamping system for press brake |
11/23/1988 | EP0292357A1 Method for cutting thin sheets, in particular metal plates, and elastomeric material used in this method |
11/17/1988 | EP0162851B1 Antifriction bearing assembly for a die set or the like |
11/17/1988 | DE3715201A1 Shaping tool for the three-dimensional deformation of metal parts |
10/27/1988 | DE3708368C1 Process for the production of a stamping tool |
10/25/1988 | US4779443 Complex pressing die apparatus |
10/25/1988 | US4779329 Tool changer for rotatable tool assemblies in punching machines |
10/18/1988 | CA1243162A1 Die clamping device |
10/12/1988 | EP0286553A1 Clamping apparatus for the releasable fixing of conformation moulds on plates of moulding presses |
10/06/1988 | WO1988007420A1 Mold lubricant discharging apparatus for knockout systems |
09/15/1988 | DE3707416A1 Device for clamping tools |
08/17/1988 | EP0278046A1 Device for stamping complex matrix figures out of a metallic strip |
08/16/1988 | US4763422 Device for presetting the tools in a platen press |
08/11/1988 | WO1988005809A1 Propoxylated guerbet alcohols and esters thereof |
08/04/1988 | DE3249799C2 Spherical rolling element for interchangeable use in a press support block |
08/03/1988 | EP0276391A2 Sheet metal working machine with a tool magazine |
07/12/1988 | US4756630 For punch presses |
07/05/1988 | CA1238816A1 Refractory metal coated metal-working dies |
07/05/1988 | CA1238775A1 Multiple processing machine |
06/29/1988 | EP0272305A1 Apparatus and method for forming an integral object from laminations. |
06/22/1988 | CN85101993B Method of punching corrugated shielding plate for color television kine scope and its apparatus |
06/21/1988 | US4752352 Apparatus and method for forming an integral object from laminations |
06/21/1988 | US4751860 Method of making blanking die sets |
06/15/1988 | EP0270762A1 Press whose base is elastically supported in a vertical direction |
05/19/1988 | DE3637566A1 Clamping device for top tools with clamping pins which can be secured under the clamping surface of press rams |
05/18/1988 | CN87107126A Hydraulic lifting device for presses |
05/11/1988 | EP0266626A2 Lower tool holder for a die or the like |
05/11/1988 | EP0266625A2 Upper tool holder for a punch or the like |
05/11/1988 | EP0266624A2 Upper tool holder for a punch or the like |
05/11/1988 | EP0266623A2 Upper tool holder for a punch or the like |
05/10/1988 | US4744036 Microprocessor controlled hydraulic system for clamping a die to a press |
05/03/1988 | US4741092 Handling device for changing tools of a cutting press |
04/28/1988 | DE3635146A1 Method for the production of a tungsten-carbide punch tip |
04/27/1988 | EP0264770A2 Hydraulic lifting device for presses |
04/20/1988 | CN87207329U Radial translation device of punch die |
03/29/1988 | US4733552 Multi-station punch/die press for progressive strip stock operations at variable index length |
03/15/1988 | US4731144 Bonding, deforming metal sheets with honeycomb structure between |
03/08/1988 | CA1233634A1 Empirical method for determining the shape of a vehicle body membrane panel |
03/02/1988 | EP0257674A2 Punching or stamping machine |
03/02/1988 | CN87207544U Shaping die with winch |
02/23/1988 | US4726273 Combination press for die-sets |
02/23/1988 | US4726270 Removing a punch from a retainer block |
02/02/1988 | US4722125 Method for producing a tungsten carbide tip punch |
01/27/1988 | CN87200683U Die for manufacture of stainless steel presure pot with top of kitchen range |
01/26/1988 | US4721518 Having a cermet base, intermediate metal carbide, nitride or oxide layer, group eight metal alloy mold surface |
01/19/1988 | US4719786 Reinforced plastic retainer rings for sheet metal forming and method of making |
01/19/1988 | US4719691 Tool change mechanism for punch presses and the like |
01/14/1988 | DE3620964A1 Device for transferring heavy loads from one place of storage to another |
01/13/1988 | EP0252635A2 Complex pressing die apparatus |
01/12/1988 | US4718339 Press with chucking plates for sets of tools |
01/12/1988 | US4718161 Press tool comprising interchangeable working parts |
01/07/1988 | EP0251287A1 Apparatus for exchanging tool of bending machine |
12/31/1987 | CN87201189U Die set for fuel tank of vehicles |
12/29/1987 | US4715775 180 degree inverting machine |
12/17/1987 | WO1987007538A1 Apparatus and method for forming an integral object from laminations |
12/17/1987 | DE3620193A1 Pressing and/or cutting tool clamping device for presses |
12/09/1987 | CN86206375U Cold pressing mould for making radiator pieces |
11/25/1987 | EP0246838A2 Mould assembly for use in the manufacture of a shadow mask for a colour cathode ray tube |
11/25/1987 | CN87103713A Hot-pressing shaping equipment of shadow mask adapted to colour-display tube from plate form part |
11/24/1987 | US4708626 Mold assembly |
11/18/1987 | CN86209071U Waste-free multiple-piece moulding die for forming elastic check ring of hole |
11/17/1987 | US4706532 Cutting equipment with rules |
11/17/1987 | CA1229363A1 Antifriction bearing assembly for a die set or the like |
11/10/1987 | US4704890 Press tool provided with a system for guiding and relieving a metal strip |
11/10/1987 | CA1228961A1 Mold changer for a press preferably an injection molding machine |
11/03/1987 | US4703644 Die apparatus having an electromagnetic drive |
10/21/1987 | EP0241933A1 Press comprising a frame and a tool consisting of at least two parts |
10/20/1987 | CA1228283A1 Tube flaring tool die assembly |
09/30/1987 | CN86101869A Fabrication technique and application of fully steel-rimmed epoxy plastic dies |
09/29/1987 | CA1227331A1 Press for adjusting and inspecting molds |
09/23/1987 | EP0237575A1 Mold assembly |
09/15/1987 | CA1226713A1 Press machine |
08/19/1987 | EP0232352A1 Punch press |
08/13/1987 | DE3703700A1 Stamping press tool unit |
07/28/1987 | US4682401 Multiple processing machine |
07/21/1987 | US4680955 Die exchange device |
06/30/1987 | US4676090 Press machine with an adjustable shut height |
06/30/1987 | CA1223466A1 Die clamping arrangement |
06/15/1987 | EP0210195A4 Ball-point writing instrument containing an aqueous ink composition. |
06/10/1987 | EP0224792A1 Tool-changing arrangement for a multistage metal-forming machine tool |
05/19/1987 | US4665607 Machine for working sheet material such as sheet metal |
05/19/1987 | CA1221904A1 Press and method of making same |
04/28/1987 | US4660406 Die manipulator |
04/28/1987 | US4660404 Die manipulator |
04/23/1987 | DE3537337A1 Clamping device |
04/14/1987 | US4656902 Metal stamping tool with working parts removable while on the machine |
04/07/1987 | US4655071 Transfer press with quick change die set arrangement |
03/31/1987 | US4653310 Die assembly for use in general type mechanical press machine |
03/26/1987 | WO1987001627A1 Mold assembly |
03/26/1987 | DE3533062A1 Tool conveying device for machines, especially for presses |
03/25/1987 | CN85103983A Process for manufacturing molds and molds made thereby |
03/17/1987 | US4649622 Tool changing apparatus for a punch press |
03/10/1987 | US4648727 Antifriction bearing assembly for a die set or the like |
03/03/1987 | US4646600 Cutting press with tool magazine |
02/24/1987 | US4644836 Punch press with vertically reciprocating plunger |