Patents for B21D 19 - Flanging or other edge treatment, e.g. of tubes (3,484)
10/1993
10/14/1993WO1993020003A1 Bobbin body and process for producing the same
10/13/1993EP0564976A1 Apparatus for forming a rectangular collar at the end of a pipe
10/07/1993DE4211172A1 Spulenkörper und Verfahren zu dessen Herstellung Bobbin and process for its preparation
09/1993
09/29/1993CN2142761Y Flanging vice for sheet-metal
09/28/1993US5247731 Method for forming a restraint for a circular part in a tubular part
09/15/1993EP0560432A1 Method and apparatus for the manufacture of an annular flange from metal strip
08/1993
08/31/1993US5240682 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
08/25/1993CN2140797Y Joint angle nipping machine
08/17/1993US5235839 Apparatus for flanging containers
07/1993
07/20/1993US5228321 Method of configuring open end of can body
07/13/1993CA1320061C Method of finishing two opposite edges of a single workpiece by machining, and apparatus for implementing the method
07/06/1993WO1995017983A1 Structure for and method of joining metal plate materials
07/06/1993US5224253 Apparatus for hemming a workpiece having an upturned edge
06/1993
06/24/1993WO1993011888A1 Improvements in press tools
05/1993
05/05/1993EP0539564A1 Selectively formed plate edge method and apparatus.
05/04/1993US5207540 Apparatus for forming diamond-shaped edges on ornamental chains
05/04/1993CA1317159C Bending apparatus
04/1993
04/29/1993DE4135250A1 Bending tool for edge of built-in sink - has positioning die, for initial bending process through 90 deg. and finishing die for folding down
04/21/1993EP0537594A2 Method of forming a flanged-joint-profile; flanged-joint-profile in particular for air-duct installations
04/06/1993US5199294 Bending tool for bending metal sheet
03/1993
03/03/1993EP0530162A1 Method and means for folding of brims
02/1993
02/03/1993EP0526405A1 Forming process for the retention of a circular piece in a tubular piece
02/03/1993EP0525759A1 Method of hemming a workpiece having an upturned edge and apparatus therefor
02/02/1993US5182933 Making a belt end fastener
01/1993
01/27/1993EP0524844A1 Process for building an extra thickness at the ends of the inner tube of a flexible bearing, after molding and its applications
01/26/1993CA1313117C Method and device for forming a transverse collar on the end of a metal pipe
01/13/1993EP0522360A2 Pack of heat transfer plates for regenerative heat exchanger as well as process and apparatus for making profiled plates for this pack
01/12/1993CA1312458C Process and apparatus for forming flanged ends on tubular workpieces
12/1992
12/30/1992EP0520693A1 Method of configuring open end of can body
11/1992
11/24/1992US5165267 Curling apparatus
11/12/1992WO1992019394A1 Selectively formed plate edge method and apparatus
11/11/1992EP0512659A2 Corrugated thin metal foil strip
11/10/1992US5161402 Chamfering pressing machine
11/07/1992CA2066127A1 Corrugated thin metal foil strip
10/1992
10/21/1992EP0406300B1 Bending apparatus
10/07/1992EP0507380A1 Device for forming a constriction on the open end zone of a metal can
10/04/1992CA2063863A1 Device for forming a constriction on the open end zone of a metal can
09/1992
09/30/1992EP0506631A1 Apparatus for forming diamond-shaped edges on ornamental chains
09/23/1992CN1018382B Bent pipe
09/22/1992US5148698 Compression tool
09/16/1992EP0406301B1 Bending apparatus
09/16/1992CN1064424A Method for operating press edger
09/08/1992US5144829 Shears unit
09/02/1992EP0501211A2 Method of operating an upsetting press
08/1992
08/18/1992US5138859 Method and apparatus for smooth-rolling and deep-rolling multi-stroke crankshafts
07/1992
07/23/1992WO1992011956A1 Bending apparatus
07/21/1992US5131145 Process for obtaining a hermetic connection for rigid tube
07/15/1992EP0289501B1 Method and device for edge-finishing
07/14/1992US5129249 Process and apparatus for forming a circular lip around an opening
06/1992
06/30/1992US5125258 Method and tools for forming sheet metal
06/16/1992US5121810 Muffler cover
06/09/1992US5119658 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
05/1992
05/19/1992US5113677 Apparatus and method for selectively forming a thickened edge on a plate of formable material
04/1992
04/29/1992EP0482073A1 A high pressure tube assembly and method of manufacture
04/07/1992CA1298537C Hemming die fixture for metal presses
04/06/1992CA2027030A1 Sheet metal break
04/01/1992EP0477469A1 Method to produce a device to connect belt or similar conveyors and the connecting device produced thereby
03/1992
03/25/1992CN1059698A Method of producing devices for interconnecting conveyor or similar belts and connectors produced by method
03/24/1992US5097690 Flange repair tool
03/17/1992US5095727 Roller burnishing tool for effecting diminishing stress reversal on annular workpieces
02/1992
02/25/1992US5090611 Method of making a cross joint between pipes
02/25/1992US5090101 Duct corner installation tool
01/1992
01/28/1992US5083355 Hemming apparatus
01/21/1992US5081814 Lath panel and method of manufacture
01/08/1992CN2092382U Vertical curving machine
01/07/1992US5078564 Seaming equipment for securing the ends of tins, cans and similar metal containers, in particular cans for foodstuffs
01/02/1992EP0339060B1 Compression moulding tool for manufacturing multilayer moulder plates
12/1991
12/31/1991US5076087 Manufacture of metal can bodies
12/18/1991EP0461293A1 Method for rolling of crankshafts with different eccentricities and machine for carrying out this method
11/1991
11/26/1991US5067338 Metal working attachment for portable power tool
10/1991
10/23/1991EP0452791A1 Press tool
10/16/1991EP0451806A1 Press tool
10/01/1991US5052209 Panel flange opener for vehicle panels
09/1991
09/26/1991DE4009466A1 Formation of corners of flanged rectangular metal sheets - uses roller of double conical form driven vertically over corner
09/25/1991EP0446256A4 A deburrer assembly for the removal of burrs and other defects from the surface of castings
09/24/1991US5050422 Bending apparatus for bending a marginal flange on a workpiece
09/18/1991EP0446256A1 A deburrer assembly for the removal of burrs and other defects from the surface of castings
09/11/1991EP0446089A1 Method and apparatus for forming a circular lip around an opening
09/04/1991CN1054206A Method and apparatus for forming, reforming and curling shells in single press
08/1991
08/14/1991CN1053762A 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
08/14/1991CN1053761A Method for producing a part of non-derelopable shape from a sheet-metal blank, and shaped part obtained by this method
08/13/1991US5038597 Bending apparatus for bending a marginal flange on a workpiece
07/1991
07/30/1991US5035136 Bending apparatus for bending a margin flange
07/09/1991CA1285892C Head seam for a pail
07/03/1991EP0435722A1 Method and device for forming a sheet metal blank in particular for producing a mask for a cathode ray tube
07/03/1991CN2080048U Internal expansion external catching type sealing block
06/1991
06/26/1991EP0434499A1 Method of producing a non-developable piece from a flat metal plate and workpiece made by this method
06/19/1991CA2032456A1 Blank forming process and apparatus, namely for producing a cathode tube mask, and mask so produced
06/19/1991CA2032444A1 Process for shaping a blank into a non developable ferm, and form produced therewith
06/18/1991US5024076 Tool for forming sheet metal
06/18/1991US5024075 Method of deforming two opposite edges of a single workpiece by machining, and apparatus for implementing the method
06/18/1991US5024074 Apparatus and method for selectively forming a thickened edge on a plate of formable material
06/05/1991EP0429815A1 Device for forming of a flange or similar, in particular at the end of a thin walled metalpipe
05/1991
05/14/1991US5014424 Method of making a curved pipe
05/08/1991DE3936621A1 Bender for metal sheets - has rollers of individual adjustable edge roller sections
04/1991
04/16/1991US5007268 Method and device for edge-finishing
04/09/1991CA1282646C Apparatus for crimping pipe
03/1991
03/05/1991US4996815 Process to manufacture a seal-holding profile and the profile obtained from said process
02/1991
02/20/1991CN2071547U Edge-bending and rolling die for flat material with honeycomb structure
01/1991
01/16/1991EP0407443A1 Bending apparatus.
1 ... 22 23 24 25 26 27 28 29 30 31 32 33 34 35