| Patents for B21D 37 - Tools as parts of machines covered by this subclass (19,804) |
|---|
| 07/29/1980 | CA1082537A1 Forming process |
| 07/01/1980 | US4210165 Pressure regulating equipment for air cushion |
| 06/10/1980 | US4206699 Retracting bolster for a press |
| 06/10/1980 | US4206667 Tool holding apparatus for presses |
| 06/03/1980 | US4205427 Multiple stage press |
| 05/15/1980 | WO1980000932A1 Method and device for bending corrugated sheet-metal sections |
| 05/06/1980 | CA1076951A1 Retainer for punch and die sets |
| 04/22/1980 | US4198884 Method of manufacturing a punching die |
| 04/15/1980 | CA1075536A1 Apparatus for making drawn articles |
| 04/15/1980 | CA1075528A1 Coining die assembly |
| 04/15/1980 | CA1075448A1 Die means having workpiece releasing means |
| 04/08/1980 | US4197340 Drawing composition and process |
| 04/08/1980 | US4196944 Bushing insert and guide post sleeve for die set |
| 03/11/1980 | US4192170 Drawing die for making a pipe elbow |
| 02/19/1980 | US4188815 Die changing apparatus for a bending brake |
| 02/05/1980 | US4186581 Drive arrangement for a tool carriage of a machine tool |
| 01/08/1980 | CA1069385A1 Method and arrangement for fastening and centering punching tools |
| 12/04/1979 | US4176441 Locking joint machine |
| 11/20/1979 | US4174648 Punch retainer |
| 11/06/1979 | US4173471 Age-hardenable titanium carbide tool steel |
| 10/16/1979 | CA1064320A1 Machine press, specifically stamping press |
| 09/04/1979 | CA1061653A2 Apparatus for forming heat exchanger strips |
| 07/10/1979 | US4160372 Transfer press having quick change die sets |
| 05/29/1979 | CA1055378A Adjustable die holder |
| 05/08/1979 | US4152978 Methods and apparatus for changing dies in a press and stocking them |
| 05/01/1979 | US4151736 Quick-change apparatus for heavy die sets |
| 04/24/1979 | US4150451 Die holder assembly |
| 04/17/1979 | US4149400 Die change device in a transfer press |
| 04/03/1979 | US4147639 Lubricant for forming metals at elevated temperatures |
| 03/27/1979 | US4145910 Carbide inserts |
| 03/27/1979 | CA1051290A1 Method for the production of black plate with improved surface lubricity |
| 03/13/1979 | US4143574 Stamping device for a fineblanking press |
| 03/06/1979 | US4142398 Quick-change system for progressive die tooling |
| 02/20/1979 | US4140449 Press for powder metallurgy |
| 02/13/1979 | US4138959 Production of composite articles |
| 02/13/1979 | CA1048254A1 Die forming of concave antenna reflectors |
| 01/30/1979 | US4137105 Back die piece |
| 01/09/1979 | US4133227 Direct machining method of manufacture of isostress contoured dies |
| 01/02/1979 | CA1045622A1 Deep-drawing of metals coated with a thermoplastic rubber/oil dispersion |
| 11/07/1978 | CA1041889A1 Machine for processing metal in sheet or plate form |
| 10/31/1978 | US4122700 Process for forming sheet metal stock |
| 10/10/1978 | US4118968 Self cleaning progressive fin die with improved stripping means |
| 09/19/1978 | US4114529 Safety structure |
| 08/29/1978 | CA1037421A1 Cross-roll forging machine |
| 08/29/1978 | CA1037298A1 Cutting tool and method for making same |
| 08/08/1978 | US4105443 Metal-forming dies |
| 08/01/1978 | US4103574 Tool assembly, method of manufacture and components thereof |
| 08/01/1978 | US4103413 Method and arrangement for fastening and centering punching tools |
| 07/25/1978 | US4102735 Die and method of making the same |
| 06/27/1978 | US4096815 Forming process |
| 06/27/1978 | US4096776 Retainer for punch and die sets |
| 06/13/1978 | US4094182 Die apparatus for press machine |
| 05/16/1978 | US4089198 Extenable tool and machine having the same |
| 05/09/1978 | US4088046 Method of producing forming tools |
| 05/09/1978 | US4088005 Combined rotary progressive die |
| 05/02/1978 | US4086837 Stamping and cutting die-set with interchangeable die-plates |
| 03/28/1978 | US4080819 Apparatus for making drawn articles |
| 10/11/1977 | US4053348 Etching |
| 09/27/1977 | US4050273 Cross-roll forging machine |
| 09/20/1977 | US4048890 Punching tool die |
| 09/20/1977 | US4048839 Die means having workpiece releasing means |
| 08/30/1977 | US4044592 Coining die assembly |
| 08/16/1977 | US4042515 Dimeric carboxylic acids in mineral oil |
| 06/14/1977 | US4028918 Assembly for applying lubricant to the working area of a punching device |
| 05/31/1977 | US4025999 Adjustable crimp die assembly |
| 05/03/1977 | US4021817 Method of manufacture of antenna reflector having a predetermined curved surface |
| 04/05/1977 | US4016087 Surface treating agent for processing of metals |
| 03/29/1977 | US4014204 Machine for processing metal in sheet or plate form |
| 02/22/1977 | US4008976 Cutting tool and method for making same |
| 01/25/1977 | US4004448 Automatic die safety lock for a metal stamping die |
| 01/18/1977 | US4003283 Die set with two-part leader pins and ball bearing guide |
| 12/28/1976 | US3999279 Method of making a punch assembly |
| 12/07/1976 | US3995470 Metal-forming systems |
| 12/07/1976 | US3995469 Self cleaning progressive fin die with improved stripping means |
| 11/30/1976 | US3994252 Method for the production of black plate with improved surface lubricity |
| 10/26/1976 | US3987750 Free standing strip oiler and feeder |
| 10/19/1976 | US3986448 Simplified rolling bolster system for press |
| 10/12/1976 | US3985056 Multiple tool holding punching unit |
| 10/05/1976 | US3983739 Work performing member with removable head |
| 09/28/1976 | US3982458 Die set |
| 08/31/1976 | US3977228 Tool for forming pipe from sheet metal |
| 08/17/1976 | US3974949 Sheet prefeeder forming an overhead stock loop to the input of an incremental feeder for a cupping press |
| 08/03/1976 | US3972260 Multiple tool holding punching apparatus |
| 08/03/1976 | US3972215 Apparatus for cutting a curved edge on a metal strip having surfaces in more than one plane |
| 07/27/1976 | US3971275 Nestable die alignment means for punch press machines |
| 07/13/1976 | US3968673 Method and apparatus for producing steel box toes to be used in safety shoes |
| 07/06/1976 | US3967483 Device for adjusting a preload and additionally compensating the slide in a press |
| 06/29/1976 | US3965721 Adjustable die holder |
| 06/29/1976 | US3965716 Device for swage-forging shafts |
| 05/11/1976 | US3956085 Method for the manufacture of a tool-set for the forming of sheet metal objects |
| 04/20/1976 | US3950976 Method and device for forming tubes |
| 04/13/1976 | US3949589 Removable subdie |
| 04/06/1976 | US3948129 Press incorporating a device for quick interchange of tools |
| 03/23/1976 | US3945240 Diffusion bonding separator |
| 03/23/1976 | US3945230 Process for automatically interchanging die assemblies in a metal working press and apparatus therefor |
| 03/16/1976 | US3943740 Tool pack for forming metallic containers |
| 03/09/1976 | US3942431 Press having travelling die set |
| 03/09/1976 | US3942354 Die unit with quick change features |
| 02/10/1976 | US3937113 Punching apparatus |
| 02/10/1976 | US3937109 Method of manufacturing cutting and/or creasing die |