Patents
Sitemap › B21 - Mechanical metal-working without essentially removing material; Punching metal › B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing material; Punching › B21D 37 - Tools as parts of machines covered by this subclass
Patents for B21D 37 - Tools as parts of machines covered by this subclass (19,804)
10/1984
10/30/1984US4480006 Distance sheeting for the construction of molds and models
10/16/1984CA1176039A1 Method and apparatus for supporting die heater wires
09/1984
09/19/1984EP0119108A1 Adapter device for mounting bending punches on a bending press
09/18/1984US4472128 Quick change locator clamp assembly for plastic molding machine
07/1984
07/24/1984US4461068 Automatic slotting apparatus with tool changing device
05/1984
05/29/1984CA1168148A1 Press apparatus having resilient stop blocks
05/23/1984EP0108935A2 Stamping machine having a multiple punch
05/22/1984US4449907 Dies exchanging device for a machine using dies
05/08/1984US4447286 Die and method of making same
05/08/1984US4446609 A tool for exchanging a matrix in a metal working machine
05/01/1984US4446351 Process for preparing a press die
04/1984
04/25/1984EP0106824A2 Unit for handling of two-part tools
04/25/1984EP0106774A2 Arrangement of turrets for punching machines
04/11/1984EP0105091A2 A tool length changing device in a panel forming machine
04/04/1984EP0104269A1 Spacing-layer for making moulds and master models and use thereof
03/1984
03/20/1984US4437224 Tool changer for a revolving cutting press
02/1984
02/28/1984US4433620 Hydropneumatic control system for a wheeled, self-propelled bolster for the transportation of a die assembly into and out of a press
02/08/1984EP0100283A2 Universal sheet metal holder
02/08/1984EP0100282A1 A bridge type punch press
02/08/1984EP0100271A1 Simplified construction of tools to widen the use of strip tools in the production of metallic articles in small or intermediate series
01/1984
01/10/1984US4424727 Method for making a die for stamping metal reflectors
12/1983
12/27/1983CA1159359A1 Punch retainer
12/21/1983EP0096659A2 Process for dyeing or printing fibrous textile materials with reactive dyes
11/1983
11/22/1983US4416132 Dual lubricant coating process
11/01/1983US4412469 Turret punch presses having tool holders rotatably mounted in the turrets
10/1983
10/18/1983CA1155321A1 Puncher-riveter
10/11/1983US4409272 Coating with a montmorillonite dispersion whose ph is adjusted with potassium compound
10/11/1983US4408521 Power press with automatic die changing system
10/05/1983EP0090621A2 Combination die and die support structures
08/1983
08/17/1983EP0085675A1 Mold box with means to support heater wires for making ceramic dies
08/09/1983US4397094 Apparatus for positioning and aligning dies
07/1983
07/05/1983US4391122 Combined hydraulic clamping and rotating saddle device on forging presses
06/1983
06/14/1983US4387583 Bending and forming tool
05/1983
05/10/1983CA1146062A1 Turret punch presses
03/1983
03/22/1983US4377100 Punch retainer
03/22/1983US4377084 Press apparatus having resilient stop blocks
02/1983
02/17/1983WO1983000457A1 Mold box with means to support heater wires for making ceramic dies
02/15/1983US4373895 Extrusion die and method for producing extrusion die for forming a honeycomb structure
02/15/1983CA1141161A1 Manufacture of colour developing sheets
01/1983
01/25/1983US4369907 Punching and riveting machine
01/12/1983EP0069158A1 Tool changing apparatus for changing the tools of a forming press automatically
01/06/1983WO1983000061A1 Improved apparatus, structure and method for joining pipe
12/1982
12/28/1982US4365792 Hydraulic mould clamp
12/21/1982CA1137828A1 Mill for transverse deformations on sheet metal
10/1982
10/13/1982EP0062309A2 Tool-changing device for horizontal presses, in particular for multistage presses
10/13/1982EP0062150A2 Method of making forming tools
09/1982
09/14/1982US4348883 Auxiliary die conveyor for a pressing or punching machine
09/09/1982EP0051634A4 Infiltrated powdered metal composite article.
09/07/1982US4347726 Method and device for bending sheet-metal sections
08/1982
08/24/1982CA1130140A1 Transfer press having quick change die sets
07/1982
07/13/1982US4339749 Abnormal condition sensing monitor system for use with machine tools
05/1982
05/27/1982WO1982001674A1 Tool for shaping articles
05/26/1982EP0052380A2 Tool for shaping articles
05/25/1982US4331049 Numerically controlled automatic notching press
05/19/1982EP0051634A1 Infiltrated powdered metal composite article.
04/1982
04/28/1982EP0050163A1 Method of forming threaded metal parts
04/27/1982US4327156 Infiltrated powdered metal composite article
04/27/1982US4326402 Stock lifter for progressive dies
03/1982
03/23/1982CA1120320A1 Retracting bolster for a press
03/02/1982US4317358 Die lifter unit for pressing or punching machine
02/1982
02/23/1982US4316379 Deep drawing press with blanking and draw pad pressure control
02/16/1982US4316180 Directional detector of changes in a local electrostatic field
02/16/1982US4315425 Clamping device for fastening a tool to a tool holder
01/1982
01/26/1982CA1116999A1 Bolster arrangement for opposed slide double acting press
01/20/1982EP0043982A1 Combined hydraulic device for clamping and rotating the upper press tool in forging presses
11/1981
11/26/1981WO1981003295A1 Infiltrated powdered metal composite article
11/24/1981US4301673 Die lifter unit
10/1981
10/01/1981WO1981002759A1 Spike plate and method and device for manufacturing it
09/1981
09/03/1981WO1981002399A1 Blank and draw press tool
08/1981
08/11/1981CA1106829A1 Cold forming lubrication
07/1981
07/14/1981US4277988 Method of manufacturing a contoured stamping die
06/1981
06/23/1981US4274332 Die changing apparatus for press
06/03/1981EP0029465A1 Transformation press with at least one pair of tools
05/1981
05/05/1981US4265297 Apparatus for detachably mounting molds
04/1981
04/22/1981EP0027247A1 Stamping tool
04/21/1981CA1099596A1 Die press having selectively variable die access clearance
04/14/1981US4261237 Rigidly supported molded plastics material punch guide and stripper
04/07/1981CA1098770A1 Transfer press
03/1981
03/31/1981US4259052 Transfer press
03/31/1981US4258620 Tool fastening means for a press
03/10/1981US4254999 Die shoes with standard interchangable components and method for interchangability
02/1981
02/17/1981US4250731 Method for producing trimming dies
02/10/1981US4249410 Die press having selectively variable die access clearance
02/10/1981CA1095399A1 Die holder assembly
02/03/1981US4248545 Deep drawing press with blanking and draw pad pressure control
02/03/1981CA1094889A1 Methods and apparatus for changing dies in a press and stocking them
01/1981
01/28/1981EP0023092A1 Abnormal condition sensing method and monitor system for use with machine tools
12/1980
12/16/1980US4238950 Bolster arrangement for opposed slide double acting press
12/16/1980CA1091573A1 Punch retainer
11/1980
11/25/1980US4235089 Progressive stamping press
11/04/1980US4231982 Method for the production of tools for deep drawing, moulding, extruding and the like
10/1980
10/21/1980US4228673 Die assembly and method of making the same
10/14/1980US4227396 Contoured stamping die
10/07/1980CA1086993A1 Direct machining method of manufacture of isostress contoured dies
09/1980
09/30/1980CA1086576A1 Method and apparatus for applying lubricating materials to metallic substrates
09/23/1980US4223544 Die lubricant nozzle for use in can bodymakers and the like
09/23/1980CA1086148A1 Method of manufacturing coated metal containers
09/02/1980US4220062 Machine having a plurality of reciprocating working tools which may be selectively brought into operation
08/1980
08/26/1980CA1084391A1 Preparation of aluminum for cold working
08/20/1980EP0014480A1 Contoured stamping die and method of manufacture thereof
1 ... 187 188 189 190 191 192 193 194 195 196 197 198 199