Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707) |
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12/08/1987 | US4711012 Apparatus and method for installing gutter drops on rain gutters |
12/01/1987 | US4709605 Method of working sheet material workpieces by a sheet material working machine tool |
11/24/1987 | US4708042 Punching machine |
11/19/1987 | EP0245371A1 Support system for blanking press. |
11/12/1987 | DE3714898A1 Verfahren und vorrichtung zum herstellen von ausnehmungen auf der begehseite der tragstaebe eines gitterrostes A method and apparatus for producing recesses on the begehseite the tragstaebe a grating |
11/10/1987 | CA1229036A1 Vertical pierce die |
11/04/1987 | EP0243407A1 Improvements to punch presses. |
11/03/1987 | US4704184 Apparatus in the form of a die assembly for building a laminated core |
10/27/1987 | CA1228614A1 Apparatus for performing operations on strip material |
10/22/1987 | WO1987006164A1 Numerically controlled punch press |
10/20/1987 | US4700444 Method for making a composite engine cylinder block with preformed liner |
10/20/1987 | US4700441 Tapping machine |
10/06/1987 | US4698480 Computer controlled machine for punching and thermal cutting of workpieces |
09/29/1987 | US4696211 Method and apparatus for nibbling cutouts with rectilinear and curvilinear contours by rotation of tooling with cutting surfaces of rectilinear and curvilinear contours and novel tooling therefor |
09/29/1987 | US4696210 Two hole automatic precision punch |
09/17/1987 | DE3604574C1 Pipe notching device |
09/16/1987 | EP0236766A1 Programmable magnetic repulsion punching apparatus |
09/03/1987 | DE3639011A1 Apparatus for making drainage slots or holes in window or door sections |
09/02/1987 | EP0235100A2 Device to periodically actuate one or more punches in a press |
09/01/1987 | US4690021 Automatic load unload turret punch |
09/01/1987 | US4689982 Method for making a cage and the cage produced thereby |
08/27/1987 | WO1987004954A1 Punching and bending machine for wires and strips |
08/25/1987 | US4688459 Punch retaining device |
08/25/1987 | US4688456 Apparatus for punching of angular steel profiles |
08/25/1987 | US4688415 Method of manufacturing metal fasteners |
08/25/1987 | CA1225880A1 Press for forming sheet metal elements |
08/19/1987 | EP0232352A1 Punch press |
08/13/1987 | DE3703700A1 Stamping press tool unit |
08/11/1987 | US4685613 Reciprocable tool mounting module |
08/11/1987 | US4685212 Method of manufacturing a jack |
07/29/1987 | CN86108533A Method and apparatus for body panel attachment |
07/28/1987 | US4682401 Multiple processing machine |
07/21/1987 | US4681004 Apparatus and method for forming die-cut articles from sheet material |
07/21/1987 | US4681001 Method of making scroll strip blanks |
07/14/1987 | US4679664 Blanking impact absorber |
07/14/1987 | US4679289 Method and apparatus for forming intruded branch attachment structures in tubing |
06/24/1987 | EP0226136A2 Apparatus for the non-cutting machining of components |
06/15/1987 | EP0210195A4 Ball-point writing instrument containing an aqueous ink composition. |
06/02/1987 | US4669345 Device for laterally perforating metallic pieces, particularly pressed pieces |
06/02/1987 | US4669290 Louvering apparayus for the perforation of tubine or piping |
05/21/1987 | WO1987002916A1 Support system for blanking press |
05/20/1987 | EP0222422A2 Cold-working tool |
05/19/1987 | CA1221904A1 Press and method of making same |
05/06/1987 | EP0220717A1 Welding machine for welding tongues on sheet-metal parts |
04/23/1987 | WO1987002309A1 Improvements to punch presses |
04/23/1987 | DE3536987A1 Automatic groove cutting device for cutting in each case two metal sheets from one circular blank |
04/21/1987 | US4658688 Rotary punch and die holders for turret punches |
04/15/1987 | CN85106547A Holes punched on wheel rim at one stroke |
04/14/1987 | US4656902 Metal stamping tool with working parts removable while on the machine |
03/31/1987 | US4653365 Method for punching ceramic green sheet |
03/25/1987 | EP0215644A2 Indexable punch and die holder for turret punches |
03/25/1987 | EP0215252A1 Device for triggering control signals for a machining tool |
03/25/1987 | CN86200161U Combined automatic shifting punching dies without lapping edge |
03/24/1987 | US4651601 Device for preventing a collision between a work holder and a tool in numerical control for a turret punch press |
03/17/1987 | US4650114 Punch press with a number of selectable punches |
03/03/1987 | US4646604 Machine tool, especially a punch |
03/03/1987 | US4646600 Cutting press with tool magazine |
03/03/1987 | CA1218628A1 Universal sheet metal holder |
02/24/1987 | US4644836 Punch press with vertically reciprocating plunger |
02/17/1987 | US4642887 Method of manufacturing loop-formed metal foil elements |
02/12/1987 | WO1987000777A1 Punch press |
02/04/1987 | EP0210195A1 Ball-point writing instrument containing an aqueous ink composition. |
02/04/1987 | CN86104935A Method puching holes in the ueneer sheet using for electric appliance |
02/03/1987 | US4640169 Cemented carbide cutting tools and processes for making and using |
02/03/1987 | US4640166 Turret punch press |
01/21/1987 | EP0209418A1 Method for introducing a capillary tube at any position into a tube having a larger diameter, and device for carrying out this method |
01/21/1987 | EP0208938A2 A method and apparatus for press-cutting various patterns |
01/20/1987 | US4637110 Method for making a composite cylinder block |
01/13/1987 | CA1216543A1 Apparatus for feeding platelike workpieces to a machine tool |
01/07/1987 | EP0207442A1 Method and apparatus for continuous longitudinal scroll slitting and cutting of wide coiled material webs into narrow webs, sheets, strips and blanks |
01/06/1987 | US4633744 Punch press for cutting windows in a ball cage |
12/30/1986 | US4632000 Control device for the translation and driving of the movable head of diecutter machines |
12/30/1986 | EP0206187A1 Punch-sensing device in a cross-transfer press |
12/23/1986 | CA1215638A1 Punch press |
12/23/1986 | CA1215532A1 Multitool punching apparatus |
12/16/1986 | US4628578 Method and apparatus for automatic punching |
12/09/1986 | US4627321 Punch press machine including a workpiece positioning means with a quick change die holder, punch and stripper unit |
12/04/1986 | WO1986007000A1 Explosive cutting means |
11/25/1986 | US4624165 Power tool, particularly revolving cutting press with tool receiving means suitable for a remotedly controlled exchange |
11/25/1986 | US4624044 Arrangement for storing and exchanging of tools in a power tool particularly a revolving cutting press |
11/18/1986 | US4623089 Punching machine with selectively actuatable punches |
11/11/1986 | US4621556 Relieved serrated dies for rotary punching units |
11/11/1986 | US4621553 Vertical pierce die |
11/11/1986 | US4621512 Mechanism for and method of shifting cam mechanisms in a press for pressing workpieces with depressed portions |
11/11/1986 | US4621511 Method and apparatus for forming loosely connected articles |
10/28/1986 | US4619448 Stop mechanism, particularly for stampling machines |
10/28/1986 | US4619031 Linkage tolerance compensating system |
10/28/1986 | US4619028 Apparatus for manufacture of laminated parts |
10/22/1986 | CN85103436A Radiator fin with open and working process and equipment thereof |
10/14/1986 | US4616540 Method and apparatus for making tubes formed with holes in their peripheral wall |
10/14/1986 | CA1212579A1 Punch and ram assembly for punch press |
10/07/1986 | US4615207 Progressive metal mold apparatus for production of laminated iron cores |
09/23/1986 | CA1211701A1 Punch press |
09/16/1986 | US4611483 Metal working press |
09/16/1986 | US4611480 Metallic wall having knockouts and method of forming |
09/02/1986 | CA1210649A1 Scored metal sheet and method of forming same |
08/26/1986 | US4607709 Motor driven hand-held machine with two part tool assembly |
08/26/1986 | US4607557 Punch |
08/13/1986 | EP0190247A1 Improvements relating to metal pressing and stamping |
08/12/1986 | CA1209460A1 Slug-retaining die |