Patents for B21D 19 - Flanging or other edge treatment, e.g. of tubes (3,484) |
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10/14/1993 | WO1993020003A1 Bobbin body and process for producing the same |
10/13/1993 | EP0564976A1 Apparatus for forming a rectangular collar at the end of a pipe |
10/07/1993 | DE4211172A1 Spulenkörper und Verfahren zu dessen Herstellung Bobbin and process for its preparation |
09/29/1993 | CN2142761Y Flanging vice for sheet-metal |
09/28/1993 | US5247731 Method for forming a restraint for a circular part in a tubular part |
09/15/1993 | EP0560432A1 Method and apparatus for the manufacture of an annular flange from metal strip |
08/31/1993 | US5240682 Reinforced corrugated thin metal foil strip useful in a catalytic converter core, a catalytic converter core containing said strip and an electrically heatable catalytic converter containing said core |
08/25/1993 | CN2140797Y Joint angle nipping machine |
08/17/1993 | US5235839 Apparatus for flanging containers |
07/20/1993 | US5228321 Method of configuring open end of can body |
07/13/1993 | CA1320061C Method of finishing two opposite edges of a single workpiece by machining, and apparatus for implementing the method |
07/06/1993 | WO1995017983A1 Structure for and method of joining metal plate materials |
07/06/1993 | US5224253 Apparatus for hemming a workpiece having an upturned edge |
06/24/1993 | WO1993011888A1 Improvements in press tools |
05/05/1993 | EP0539564A1 Selectively formed plate edge method and apparatus. |
05/04/1993 | US5207540 Apparatus for forming diamond-shaped edges on ornamental chains |
05/04/1993 | CA1317159C Bending apparatus |
04/29/1993 | DE4135250A1 Bending tool for edge of built-in sink - has positioning die, for initial bending process through 90 deg. and finishing die for folding down |
04/21/1993 | EP0537594A2 Method of forming a flanged-joint-profile; flanged-joint-profile in particular for air-duct installations |
04/06/1993 | US5199294 Bending tool for bending metal sheet |
03/03/1993 | EP0530162A1 Method and means for folding of brims |
02/03/1993 | EP0526405A1 Forming process for the retention of a circular piece in a tubular piece |
02/03/1993 | EP0525759A1 Method of hemming a workpiece having an upturned edge and apparatus therefor |
02/02/1993 | US5182933 Making a belt end fastener |
01/27/1993 | EP0524844A1 Process for building an extra thickness at the ends of the inner tube of a flexible bearing, after molding and its applications |
01/26/1993 | CA1313117C Method and device for forming a transverse collar on the end of a metal pipe |
01/13/1993 | EP0522360A2 Pack of heat transfer plates for regenerative heat exchanger as well as process and apparatus for making profiled plates for this pack |
01/12/1993 | CA1312458C Process and apparatus for forming flanged ends on tubular workpieces |
12/30/1992 | EP0520693A1 Method of configuring open end of can body |
11/24/1992 | US5165267 Curling apparatus |
11/12/1992 | WO1992019394A1 Selectively formed plate edge method and apparatus |
11/11/1992 | EP0512659A2 Corrugated thin metal foil strip |
11/10/1992 | US5161402 Chamfering pressing machine |
11/07/1992 | CA2066127A1 Corrugated thin metal foil strip |
10/21/1992 | EP0406300B1 Bending apparatus |
10/07/1992 | EP0507380A1 Device for forming a constriction on the open end zone of a metal can |
10/04/1992 | CA2063863A1 Device for forming a constriction on the open end zone of a metal can |
09/30/1992 | EP0506631A1 Apparatus for forming diamond-shaped edges on ornamental chains |
09/23/1992 | CN1018382B Bent pipe |
09/22/1992 | US5148698 Compression tool |
09/16/1992 | EP0406301B1 Bending apparatus |
09/16/1992 | CN1064424A Method for operating press edger |
09/08/1992 | US5144829 Shears unit |
09/02/1992 | EP0501211A2 Method of operating an upsetting press |
08/18/1992 | US5138859 Method and apparatus for smooth-rolling and deep-rolling multi-stroke crankshafts |
07/23/1992 | WO1992011956A1 Bending apparatus |
07/21/1992 | US5131145 Process for obtaining a hermetic connection for rigid tube |
07/15/1992 | EP0289501B1 Method and device for edge-finishing |
07/14/1992 | US5129249 Process and apparatus for forming a circular lip around an opening |
06/30/1992 | US5125258 Method and tools for forming sheet metal |
06/16/1992 | US5121810 Muffler cover |
06/09/1992 | US5119658 Method and device for forming a sheet-metal blank in particular in order to make a cathode ray tube mask, and cathode ray tube mask obtained according to this method |
05/19/1992 | US5113677 Apparatus and method for selectively forming a thickened edge on a plate of formable material |
04/29/1992 | EP0482073A1 A high pressure tube assembly and method of manufacture |
04/07/1992 | CA1298537C Hemming die fixture for metal presses |
04/06/1992 | CA2027030A1 Sheet metal break |
04/01/1992 | EP0477469A1 Method to produce a device to connect belt or similar conveyors and the connecting device produced thereby |
03/25/1992 | CN1059698A Method of producing devices for interconnecting conveyor or similar belts and connectors produced by method |
03/24/1992 | US5097690 Flange repair tool |
03/17/1992 | US5095727 Roller burnishing tool for effecting diminishing stress reversal on annular workpieces |
02/25/1992 | US5090611 Method of making a cross joint between pipes |
02/25/1992 | US5090101 Duct corner installation tool |
01/28/1992 | US5083355 Hemming apparatus |
01/21/1992 | US5081814 Lath panel and method of manufacture |
01/08/1992 | CN2092382U Vertical curving machine |
01/07/1992 | US5078564 Seaming equipment for securing the ends of tins, cans and similar metal containers, in particular cans for foodstuffs |
01/02/1992 | EP0339060B1 Compression moulding tool for manufacturing multilayer moulder plates |
12/31/1991 | US5076087 Manufacture of metal can bodies |
12/18/1991 | EP0461293A1 Method for rolling of crankshafts with different eccentricities and machine for carrying out this method |
11/26/1991 | US5067338 Metal working attachment for portable power tool |
10/23/1991 | EP0452791A1 Press tool |
10/16/1991 | EP0451806A1 Press tool |
10/01/1991 | US5052209 Panel flange opener for vehicle panels |
09/26/1991 | DE4009466A1 Formation of corners of flanged rectangular metal sheets - uses roller of double conical form driven vertically over corner |
09/25/1991 | EP0446256A4 A deburrer assembly for the removal of burrs and other defects from the surface of castings |
09/24/1991 | US5050422 Bending apparatus for bending a marginal flange on a workpiece |
09/18/1991 | EP0446256A1 A deburrer assembly for the removal of burrs and other defects from the surface of castings |
09/11/1991 | EP0446089A1 Method and apparatus for forming a circular lip around an opening |
09/04/1991 | CN1054206A Method and apparatus for forming, reforming and curling shells in single press |
08/14/1991 | CN1053762A Method and device for forming a sheet-metal blank, in particular in order to make a cathode ray tube mask, and cathode ray tube mask obtained according to this method |
08/14/1991 | CN1053761A Method for producing a part of non-derelopable shape from a sheet-metal blank, and shaped part obtained by this method |
08/13/1991 | US5038597 Bending apparatus for bending a marginal flange on a workpiece |
07/30/1991 | US5035136 Bending apparatus for bending a margin flange |
07/09/1991 | CA1285892C Head seam for a pail |
07/03/1991 | EP0435722A1 Method and device for forming a sheet metal blank in particular for producing a mask for a cathode ray tube |
07/03/1991 | CN2080048U Internal expansion external catching type sealing block |
06/26/1991 | EP0434499A1 Method of producing a non-developable piece from a flat metal plate and workpiece made by this method |
06/19/1991 | CA2032456A1 Blank forming process and apparatus, namely for producing a cathode tube mask, and mask so produced |
06/19/1991 | CA2032444A1 Process for shaping a blank into a non developable ferm, and form produced therewith |
06/18/1991 | US5024076 Tool for forming sheet metal |
06/18/1991 | US5024075 Method of deforming two opposite edges of a single workpiece by machining, and apparatus for implementing the method |
06/18/1991 | US5024074 Apparatus and method for selectively forming a thickened edge on a plate of formable material |
06/05/1991 | EP0429815A1 Device for forming of a flange or similar, in particular at the end of a thin walled metalpipe |
05/14/1991 | US5014424 Method of making a curved pipe |
05/08/1991 | DE3936621A1 Bender for metal sheets - has rollers of individual adjustable edge roller sections |
04/16/1991 | US5007268 Method and device for edge-finishing |
04/09/1991 | CA1282646C Apparatus for crimping pipe |
03/05/1991 | US4996815 Process to manufacture a seal-holding profile and the profile obtained from said process |
02/20/1991 | CN2071547U Edge-bending and rolling die for flat material with honeycomb structure |
01/16/1991 | EP0407443A1 Bending apparatus. |