| Patents for B21D 41 - Application of procedures in order to alter the diameter of tube ends (2,982) |
|---|
| 01/07/1982 | WO1982000013A1 Method of obtaining butt-end wall with concentric recess in a tubular workpiece |
| 01/05/1982 | US4308744 Tube pointer |
| 01/05/1982 | US4308736 Tube expander |
| 12/22/1981 | US4306442 Radial press for cylindrical workpieces |
| 12/09/1981 | EP0041432A1 Apparatus for deforming tubes |
| 11/10/1981 | US4299107 Device for forming a collar around a hole in the wall of a pipe |
| 11/03/1981 | US4297868 Pipe sizing and grooving apparatus |
| 11/03/1981 | US4297867 Pipe end expanding or contracting process utilizing ironing |
| 10/20/1981 | US4295357 Apparatus for making metal outers and inners |
| 09/09/1981 | EP0035245A1 Improvements in or relating to methods of and/or apparatus for flanging tube ends |
| 08/05/1981 | EP0032921A1 Tube expanding tool. |
| 04/14/1981 | US4261193 Necked-in aerosol container-method of forming |
| 03/31/1981 | CA1098296A1 Device for edging the points of ball pens in particular those made of hard material |
| 03/03/1981 | US4253324 Drill pipe reforming method and apparatus |
| 03/03/1981 | CA1096661A1 Tube swaging machine |
| 02/19/1981 | WO1981000364A1 Tube expanding tool |
| 01/07/1981 | EP0021603A1 Tube end forming apparatus |
| 12/16/1980 | US4238949 Process and apparatus for making metal outers and inners |
| 11/25/1980 | CA1090174A1 Inclined rolling stand |
| 11/25/1980 | CA1090103A1 Core tools |
| 11/04/1980 | US4231246 Crimping tool for tubular-like objects and method |
| 10/07/1980 | US4226107 Device for edging the points of ball pens in particular those made of hard material |
| 10/07/1980 | CA1086996A1 Flaring tool |
| 09/23/1980 | US4223545 Swaging tool assembly |
| 08/20/1980 | EP0014245A1 Apparatus for upsetting tube ends |
| 08/19/1980 | CA1083891A1 Tool for radially expanding the mouth of a hollow article |
| 07/15/1980 | US4212186 Pipe expander |
| 07/15/1980 | US4212183 Upsetting of tube ends |
| 07/08/1980 | US4211103 Double taper clamp |
| 05/20/1980 | US4203313 Method and apparatus for the expansion of a hollow article |
| 05/20/1980 | US4203273 Tubing with formed ends for heat exchangers |
| 05/13/1980 | US4202194 Inclined rolling stand |
| 04/29/1980 | US4199969 Tube swaging machine |
| 04/22/1980 | US4198844 Tube expander |
| 03/11/1980 | US4192167 Process and apparatus for upsetting pipe ends |
| 08/22/1979 | EP0003487A1 Method and apparatus for enlarging a hollow body serving as a muff coupling |
| 08/07/1979 | CA1059839A1 Process and apparatus for making metal outers and inners |
| 07/03/1979 | US4159634 Toggle mechanism for pinching metal tubes |
| 05/22/1979 | US4155242 Core tools |
| 05/15/1979 | US4154083 Expanding head for pipe end enlarging tools |
| 04/03/1979 | CA1051824A1 Method and apparatus for swaging tubular material |
| 03/20/1979 | US4144735 Mounting for the exchangeable sets of expanding elements of tools for enlarging the ends of pipes |
| 03/13/1979 | US4143535 Pipe end shaper |
| 02/20/1979 | US4140041 Explosive-forming device for the obturation of a pipe by compression |
| 02/13/1979 | US4138873 Tool for forming rectangular cross-sectional conduit ends |
| 12/26/1978 | CA1044879A1 Tool for shaping and contouring pipe ends |
| 11/28/1978 | US4127021 Tube flaring set |
| 11/07/1978 | CA1041888A1 Flaring tool |
| 07/25/1978 | US4102173 End forming apparatus for elongated work pieces |
| 07/25/1978 | US4102168 Rotary expansion tool |
| 06/13/1978 | US4094184 Machine for forming joining pipes |
| 05/30/1978 | US4091648 Pipe grooving systems |
| 05/16/1978 | US4089199 Ball bat and method of making the same |
| 05/09/1978 | US4088008 Quick release adapter and tool combination |
| 05/09/1978 | US4088001 Method of manufacturing a strut member made of a tube material for use with drum brakes |
| 05/09/1978 | US4087997 Pipe end shaper tool |
| 04/25/1978 | US4085489 Process for fabricating hollow races or wheels provided at their lateral ends with axle stumps in which process substantially no chips are produced; and races and wheels manufactured in accordance with this process |
| 01/17/1978 | US4068515 Flaring tool |
| 01/03/1978 | US4065953 Mechanical tube expander |
| 12/27/1977 | US4064730 Tube expander |
| 12/06/1977 | US4061009 Machine for spinning tubular workpieces |
| 11/29/1977 | US4059977 Method of producing hermetically sealed end in a tubular workpiece |
| 09/20/1977 | US4048933 Container head forming |
| 09/13/1977 | US4047415 Apparatus for shaping the end of a hollow tube |
| 08/23/1977 | US4043172 Tube compressor |
| 08/23/1977 | US4043164 Branch tool |
| 08/23/1977 | US4043160 Internal tooling for swaging apparatus |
| 08/09/1977 | US4040875 Ductile cast iron articles |
| 07/12/1977 | US4034591 Device for enlarging pipe ends |
| 07/05/1977 | US4033163 Apparatus for swaging tubular material |
| 06/07/1977 | US4027518 Hydraulic press |
| 02/22/1977 | US4008821 Necked-in can body and apparatus for making same |
| 02/22/1977 | US4008596 Apparatus for transforming the cross-section of a thin-walled cylinder |
| 02/08/1977 | US4006757 Pipe bell end having a thickened portion and apparatus for forming the bell end |
| 12/07/1976 | US3995438 Method for increasing the load carrying capacity and pull-out resistance of hollow piles |
| 09/21/1976 | US3981172 Method and apparatus for expanding spirally welded pipe |
| 08/31/1976 | US3977227 Method of cold extruding ductile cast iron tube |
| 07/06/1976 | US3967489 Method of forming constriction in tubing |
| 06/01/1976 | US3959998 Pipe swaging apparatus |
| 04/20/1976 | US3950976 Method and device for forming tubes |
| 04/06/1976 | US3948073 Apparatus and method of metal forming |
| 02/10/1976 | US3937050 Apparatus for constricting or closing conduits |