| Patents for B21D 41 - Application of procedures in order to alter the diameter of tube ends (2,982) |
|---|
| 10/28/1998 | CN2295541Y Diameter changing mould for can manufacturing apparatus |
| 10/22/1998 | DE19715961A1 One-piece sound absorbing component for air conditioning and cooling equipment in vehicles etc |
| 10/15/1998 | DE19730053C1 Spreader for pipe ends |
| 10/15/1998 | DE19714753A1 Shaping closed container base |
| 10/08/1998 | WO1998043759A1 Forming technique using discrete heating zones |
| 10/08/1998 | CA2283745A1 Forming technique using discrete heating zones |
| 09/24/1998 | WO1998041706A2 Metal framing system |
| 09/24/1998 | WO1998041338A1 Tool for working shaped, hollow metal tubing to achieve an end reduction |
| 09/24/1998 | CA2283734A1 Tool for working shaped, hollow metal tubing to achieve an end reduction |
| 09/24/1998 | CA2283727A1 Metal framing system |
| 09/16/1998 | CN1192955A Press head of hydraulic implement |
| 08/26/1998 | EP0682758B1 A method of making a pipe connection and a tool suitable for use when carrying out the method |
| 08/12/1998 | CN1039479C Sizing method and equipment for spiral welding pipe |
| 07/29/1998 | EP0854803A1 Frame apparatus and process for the manufacture of same |
| 07/22/1998 | EP0853931A2 Distal terminal element for the stem of a primary hip prosthesis |
| 07/15/1998 | EP0852972A2 Process for manufacturing a deformed metal can having a reshaped can body wall |
| 07/15/1998 | CN1039153C Expanding method and tool therefor |
| 07/14/1998 | US5778715 Cold rolling positioning roller assembly |
| 06/18/1998 | WO1998025714A1 Method for spin forming articles |
| 06/17/1998 | CN2284112Y Digital control and servomechanism installation of spinning closing-in machine |
| 06/10/1998 | CN1184442A Multipurpose head forming and finishing apparatus |
| 06/09/1998 | US5762196 Stackable drawn pieces |
| 04/28/1998 | US5744085 Pipe-end expanding method and a tool therefor |
| 04/14/1998 | US5737958 Method for necking containers |
| 04/09/1998 | DE19632012A1 Forming press for pointing of pipes |
| 04/01/1998 | EP0794844A4 System for constricting a tube wall |
| 03/12/1998 | DE19636424A1 Appts to form contours in a hollow profile wall |
| 03/10/1998 | US5724849 Process for forming a tube for use in a sound attenuating muffler |
| 03/04/1998 | CN1037588C Spinning closing-in technology control system for high-pressure gas cylinder |
| 02/25/1998 | EP0824385A1 Multipurpose head forming and finishing apparatus |
| 02/24/1998 | US5720511 Frame apparatus and process for the manufacture of same |
| 02/19/1998 | WO1998006519A1 Expansion machine with a return device |
| 01/14/1998 | EP0818370A2 Mounting put for a retaining cable in a vehicle seat belt system |
| 01/14/1998 | EP0714328B1 Space frame apparatus and process for the manufacture of same |
| 01/07/1998 | EP0815981A2 Apparatus for enlarging chimney stack ends |
| 12/16/1997 | CA2100644C Tubular hitch member ball connection for an implement |
| 12/10/1997 | EP0811444A1 Method of wall-thickening metal pipes |
| 12/03/1997 | EP0809553A1 Expanding tool for-cold-forming |
| 12/03/1997 | EP0809552A1 Headforming machine for expanding tube ends |
| 10/16/1997 | DE19716383A1 Method of manufacturing axially symmetrical hollow components |
| 10/16/1997 | DE19614656A1 Manufacture of increased wall thickness on hollow profile, for IC engine exhaust pipe |
| 10/15/1997 | CN1162277A System for constricting tube wall |
| 09/17/1997 | EP0794844A1 System for constricting a tube wall |
| 09/17/1997 | CN1159371A Method for making cone-shaped pipe by extrusion |
| 08/27/1997 | EP0791776A1 Flanged pipe unit and method of producing same |
| 08/06/1997 | EP0787047A1 Process for heading pipe ends and device for implementing it |
| 07/30/1997 | EP0786295A1 Method for necking containers |
| 07/25/1997 | CA2195711A1 Method for necking containers |
| 07/16/1997 | EP0784016A1 Nestable drawn pieces as well as a process and a device for fabricating the same |
| 05/22/1997 | DE19647859A1 Method for forming multi=slot profile for quill shaft |
| 04/24/1997 | WO1997014588A1 Frame apparatus and process for the manufacture of same |
| 04/24/1997 | DE19619340A1 Tool for manufacturing cylindrical flare on pipe end |
| 04/23/1997 | EP0769337A1 A method of closing an end of a metal pipe |
| 04/17/1997 | CA2182330A1 Frame apparatus and process for the manufacture of same |
| 04/10/1997 | DE19600755C1 Stackable drawn part, especially of sheet metal |
| 04/03/1997 | WO1997011799A1 A pressing and a method of and apparatus for making a pressing |
| 04/01/1997 | US5615481 Method and apparatus for the production of circumferentially compressible pipe fittings |
| 03/05/1997 | CN1144146A Cutting nozzle and divergent nozzle forming method |
| 02/19/1997 | CN1034061C Punching and contracting connecting method for beering position rotary joint and mould |
| 02/12/1997 | EP0700323B1 Radial extrusion process combined with inside tube ironing |
| 02/04/1997 | US5598905 Method of making a shock absorber and a shock absorber made by the method |
| 02/04/1997 | US5598729 System and method for constructing wall of a tube |
| 12/18/1996 | CN1137956A Pipe clamp system and pipe end processing device using the system |
| 12/03/1996 | US5579832 Heat exchanger tube, apparatus for forming such a tube, and a heat exchanger comprising such tubes |
| 11/14/1996 | WO1996035528A1 Multipurpose head forming and finishing apparatus |
| 11/14/1996 | CA2220869A1 Multipurpose head forming and finishing apparatus |
| 11/05/1996 | US5570603 Method and apparatus for cold rolling piping element connections having multiple outward steps |
| 10/24/1996 | DE19620812A1 Producing rotationally symmetrical bodies from tubular sections for automobile industry |
| 10/15/1996 | US5564304 Tool for rounding the end of a tube |
| 10/08/1996 | US5562000 Apparatus and method for expanding and shaping tubular conduits |
| 10/02/1996 | DE19511447A1 Appts. for forming the end zone of pipe for use in threaded joints |
| 10/02/1996 | CN1132545A An expanding method and a tool therefor |
| 09/11/1996 | CN2234831Y Metal tube material moving mould end-reducing machine |
| 08/22/1996 | WO1996025255A1 Expanding tool for-cold-forming |
| 08/22/1996 | WO1996025253A1 Headforming machine for expanding tube ends |
| 08/22/1996 | DE19504968A1 Spreizwerkzeug für Kaltverformungen Spreading tool for cold forming |
| 08/22/1996 | CA2211897A1 Expanding tool for cold forming |
| 08/20/1996 | US5546783 Crimp sealing of tubes flush with or below a fixed surface |
| 08/14/1996 | EP0725908A1 An expanding method and a tool therefor |
| 07/24/1996 | EP0722794A1 Tool for altering the diameter, shape or configuration of a tube |
| 06/26/1996 | EP0718057A2 Device for flaring hollow workpieces |
| 06/18/1996 | US5526670 Process and device for shaping the end of a tube with an oblong cross-section to a circular cross-section |
| 06/18/1996 | US5526663 Devices for the grooving of tubes |
| 06/05/1996 | EP0714328A1 Space frame apparatus and process for the manufacture of same |
| 05/09/1996 | WO1996013347A1 System for constricting a tube wall |
| 05/09/1996 | CA2202681A1 System for constricting a tube wall |
| 05/02/1996 | WO1996012578A1 Process for heading pipe ends and device for implementing it |
| 05/02/1996 | DE4437395A1 Verfahren zum Anstauchen von Rohrenden und Vorrichtung zur Durchführung des Verfahrens Method for upsetting tube ends and device for carrying out the method |
| 04/11/1996 | DE4435466A1 Process for producing connection between insert and tubular component |
| 03/27/1996 | CN2223152Y Vertical slave measuring expanding machine |
| 03/26/1996 | US5501093 Procedure and apparatus for forming a rectangular collar at the end of a pipe |
| 03/13/1996 | EP0700323A1 Radial extrusion process combined with inside tube ironing |
| 03/07/1996 | DE4430068A1 Process for manufacturing scaffolding tubes |
| 02/08/1996 | DE4431517C1 Method of forming end pieces on metal tubes |
| 01/10/1996 | EP0690754A1 Hand-tool for widening a pipe end and pipe coupling making use of such a widened pipe end |
| 01/04/1996 | DE4422576A1 Flanging unit for ends of pipes |
| 01/03/1996 | EP0689886A1 Tube flarer |
| 01/03/1996 | CN2216716Y Closing in forming apparatus for lead sleeve of cable |
| 11/29/1995 | CN2213588Y Three shrink neck pot and two shrink neck step forming die |
| 11/22/1995 | EP0682758A1 A method of making a pipe connection and a tool suitable for use when carrying out the method |