Patents for B21D 17 - Forming single grooves in sheet metal or tubular or hollow articles (1,507)
09/1987
09/01/1987CA1226174A1 Tooth forming tool with toothless clamping section for splining tubular elements
05/1987
05/26/1987US4667498 Method and apparatus of making gelatine capsule forming pins having a rounded locking groove
04/1987
04/23/1987WO1987002282A1 Container processing apparatus
04/22/1987EP0219181A2 Strain imparting device
04/07/1987US4655064 For securing a hose coupling to a flexible hose
03/1987
03/17/1987CA1219174A1 Structural metal sheet and method for forming the same
03/04/1987EP0212717A2 Method and arrangement for embossing channels with small sections in the surface of a work piece
03/03/1987US4646549 Apparatus for rolling a cylindrical blank
03/03/1987US4646548 Tube expanding and grooving tool and method
02/1987
02/24/1987US4644775 Shell forming apparatus and process
02/17/1987US4643011 Method of manufacturing a cylinder member of a cylinder piston unit
01/1987
01/02/1987DE3621144A1 Method for expansion of a tubular element
12/1986
12/30/1986CA1215885A1 Machine for deep peripheral slitting of unplanar disks used to fabricate tire wheels
10/1986
10/21/1986US4617818 Structural metal sheet and method for forming the same
09/1986
09/10/1986EP0193589A1 Apparatus and method for producing a hose fitting shell.
09/09/1986US4610154 Tooth forming tool with toothless clamping section for splining tubular elements
09/02/1986CA1210649A1 Scored metal sheet and method of forming same
08/1986
08/27/1986EP0192584A1 Method and apparatus for making grooves in a surface of revolution
08/19/1986US4606214 Metal forming apparatus
07/1986
07/31/1986WO1986004274A1 Method and device for making grooves on a revolution wall
07/23/1986CN85107311A Heat-transfer tube
05/1986
05/27/1986US4590655 Method for expanding a tubular member
04/1986
04/01/1986US4578976 Container processing apparatus
03/1986
03/13/1986WO1986001441A1 Hose pressure socket
03/04/1986CA1201329A1 Tooth forming tool for splining tubular elements
01/1986
01/28/1986US4566301 Method and means of manufacturing spirally fluted tubes
01/14/1986US4563887 Controlled spin flow forming
12/1985
12/04/1985EP0163252A1 Pipe screwing with contacting seal
11/1985
11/26/1985US4554817 Valve sleeve shaping method
11/19/1985US4553419 Process for forming cell cans having internal longitudinal ribs
10/1985
10/01/1985US4543813 Method of making valve sleeves
09/1985
09/25/1985EP0155579A2 Method for forming the inner surface of tubular-shaped body without removing material and an apparatus for performing said method
09/03/1985US4538439 Cans formed of thin-walled material and apparatus for forming precise fine beads therein
07/1985
07/23/1985CA1190781A1 Apparatus for creasing paper used in the production of gypsum wallboard
06/1985
06/25/1985US4524598 Method of rolling a simulated hole in sheet metal without drilling or punching
06/18/1985US4523446 Machine for the deep slitting of the periphery of non planar discs used for providing wheels having a pneumatic tire
06/04/1985CA1188082A1 Pipe-locking formation method and apparatus
05/1985
05/08/1985EP0140469A1 Apparatus and method for forming a neck in a container body
03/1985
03/12/1985US4504181 Method of forming scored metal sheet
01/1985
01/16/1985EP0131159A2 Method and device for making grooves in a tin body
12/1984
12/11/1984US4487048 Method and apparatus for beading the bodies of sheet metal cans
12/04/1984US4485657 Tooth forming tool and method for splining tubular elements
11/1984
11/07/1984EP0123851A2 Method and apparatus for rolling a cylindrical blank
09/1984
09/18/1984CA1174446A1 Method of manufacturing universal joint housing
09/11/1984US4470291 Pipe-locking formation method and apparatus
09/11/1984US4470288 Manufacturing method and apparatus for shell of universal-joint
07/1984
07/31/1984US4462235 Method for threading closures
06/1984
06/26/1984US4455852 Method for producing shapes having circular corrugations
06/26/1984CA1169638A1 Squeezer flanger
03/1984
03/20/1984US4437327 Method and apparatus for circumferentially grooving thin-walled cylindrical metal objects
02/1984
02/14/1984US4430873 Apparatus for forming grooves having a curved axis and a circular cross-sectional shape
12/1983
12/20/1983US4420959 Apparatus for threading closures
11/1983
11/29/1983US4417883 Apparatus for creasing paper used in the production of gypsum wallboard
11/16/1983EP0094344A2 Thin-walled cask and tool for making high-precision corrugations
08/1983
08/09/1983US4397171 Method for forming splines in sheet metal
07/1983
07/13/1983EP0083518A1 Deep slitting machine for making grooved wheels for air tyres from non plane blanks
06/1983
06/28/1983US4389875 Method and apparatus for making beads on drums
06/21/1983US4389147 Can support system
05/1983
05/18/1983EP0079174A2 Apparatus for creasing paper used in the production of gypsum wallboard
05/03/1983US4381659 Method of manufacturing universal joint housing
04/1983
04/19/1983US4380165 Squeezer flanger
03/1983
03/23/1983EP0074614A2 Manufacturing method and apparatus for shell of universal-joint
02/1983
02/15/1983US4373366 Machine for forming spiral grooves in metal pipe inner surface
02/01/1983CA1140398A1 Pipe sizing and grooving apparatus
12/1982
12/08/1982EP0066541A1 Method for the production of a ball tip for a liquid ink writing instrument, and tip produced by this method
08/1982
08/25/1982EP0058465A1 Method of manufacturing universal joint housings
08/10/1982US4343174 Beading die for can bodies
05/1982
05/18/1982US4330142 Formed hose couplings
03/1982
03/04/1982WO1982000682A1 Method of making windows in parts of the distributing device of a positive-displacement hydraulic machine
12/1981
12/09/1981EP0041302A1 Method and device for manufacturing a sleeve body having at least at one open end an outwardly directed circumferential flange and a circular constriction adjoining the same
11/1981
11/03/1981US4297868 Pipe sizing and grooving apparatus
10/1981
10/20/1981US4295352 Die for the formation of semi-closed channels or other complex configurations
10/13/1981US4294097 Bottom roll-forming method and apparatus and resultant can end configuration
09/1981
09/29/1981US4291560 High-production method for making grooved resistance ribbon for electrical heating coils
05/1981
05/27/1981EP0029380A1 Method of forming a bead in the wall of a metallic tube
03/1981
03/31/1981CA1098380A1 Tandem roll groover
01/1981
01/27/1981US4246770 Apparatus for operating on hollow workpieces
07/1980
07/15/1980CA1081546A1 Backup roll for thin walled pipe grooving device
03/1980
03/25/1980US4194381 Device for the cold working of heat exchanger tubing for the attachment of spiral fins
01/1980
01/22/1980US4184351 High-production method and apparatus for making grooved resistance ribbon for electrical heating coils
01/09/1980EP0006321A1 Apparatus for operating on hollow workpieces
12/1979
12/04/1979US4176536 Device for producing a bead on the circumference of a hollow cylinder
11/1979
11/27/1979US4175416 Apparatus for manufacturing heat transfer tubes
09/1979
09/04/1979US4166370 Tandem roll groover
06/1979
06/19/1979CA1056706A1 Method and apparatus for reforming round ducts into rectangular ducts
05/1979
05/15/1979US4154082 Manufacture of yokes for dynamo electric machines
05/15/1979CA1054405A1 Machine for roll grooving of pipe
03/1979
03/20/1979US4144733 Pipe grooving apparatus
03/13/1979US4143535 Pipe end shaper
03/06/1979US4142393 Profiling machine
03/06/1979US4142392 Internally groove forming apparatus for heat exchanging pipes
12/1978
12/26/1978CA1044879A1 Tool for shaping and contouring pipe ends
10/1978
10/17/1978US4120190 Craft device for decoratively deforming metal cans and the like
10/10/1978CA1040226A1 Method and apparatus for folding sheet material
09/1978
09/19/1978US4114414 Backup roll for thin walled pipe grooving device
08/1978
08/08/1978US4104902 Ferrule forming assembly
07/1978
07/25/1978US4102170 Method for making a spiral coil having spaced turns
05/1978
05/30/1978US4091648 Pipe grooving systems
01/1978
01/31/1978US4070897 Method for producing an outer shell for overrunning clutches
08/1977
08/23/1977US4043164 Branch tool
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