| Patents for B21H 8 - Rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects (465) |
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| 06/06/2000 | US6070448 Method of using profiles, and producing metal sheets with stepped cross-sections and different wall thicknesses |
| 05/17/2000 | CN2378620Y Angle steel |
| 04/04/2000 | US6044679 Method for machining metal plate |
| 03/30/2000 | WO2000016920A1 Method and device for the surface treatment of workpieces and their use |
| 03/15/2000 | EP0662018B1 Hollow bars and method of manufacture |
| 03/14/2000 | US6035686 Method and installation for producing biconical wire |
| 01/25/2000 | US6017657 Electroforming an embossing shim of nickel on positive holographic master surface in a hardening bath to produce a durable layer which is pressed into unheated substrate surface during embossing |
| 12/28/1999 | US6006415 Techniques for transferring holograms into metal surfaces |
| 11/17/1999 | CN1046440C Method and apparatus for manufacture of hot rolled beam |
| 11/09/1999 | US5979205 Ring manufacturing method and ring manufacturing apparatus |
| 10/06/1999 | CN1230475A Roll-patterned strip |
| 09/29/1999 | EP0945198A2 Roll-patterned strip |
| 09/15/1999 | EP0683703B1 Manufacture of metallic strip |
| 08/17/1999 | CA2172876C Method of manufacturing a c-shaped rail with profiled surfaces |
| 08/03/1999 | US5931226 Refrigerant tubes for heat exchangers |
| 06/24/1999 | WO1999031557A1 Techniques for transferring holograms into metal surfaces |
| 06/03/1999 | WO1999026785A1 Method for embossing holograms into aluminum and other hard substrates |
| 04/28/1999 | EP0911091A2 Wire rolling apparatus |
| 04/14/1999 | EP0908636A1 Self-piercing rivet and method of manufacturing the same |
| 04/06/1999 | US5890389 Method of manufacturing modified cross-section material |
| 03/31/1999 | EP0904860A2 Method and installation for manufacturing biconical wire |
| 03/16/1999 | US5881444 Techniques for transferring holograms into metal surfaces |
| 02/03/1999 | EP0894031A1 Method for machining metal plate |
| 01/07/1999 | DE19829050A1 Manufacturing ring-shaped metallic parts with flat sections from round rod |
| 11/05/1998 | DE19818286A1 Intermediate, semi-finished material for double standard strip |
| 11/04/1998 | CN1198111A Method of rolling deformed bar and roll for deformed bar |
| 10/28/1998 | CN1196984A Intermediate material for producing dual gauge strip and method for producing the same and method for producing dual gauge strip |
| 09/08/1998 | US5803671 Hollow bars and method of manufacture |
| 07/28/1998 | US5784776 Process for producing flat heat exchange tubes |
| 07/22/1998 | EP0853988A1 Method of rolling deformed bar and roll for deformed bar |
| 07/01/1998 | EP0850702A2 Method for manufacturing engraved rolling roll and apparatus for performing the same |
| 06/30/1998 | CA2210159A1 Method for manufacturing engraved rolling roll and apparatus for manufacturing the same |
| 06/03/1998 | EP0845646A1 Refrigerant tubes for heat exchangers |
| 05/27/1998 | CN1182647A Method for making section material |
| 05/12/1998 | US5749256 Method and apparatus for manufacturing a hot rolled beam |
| 05/12/1998 | US5749144 Method of making refrigerant tubes for heat exchangers |
| 05/07/1998 | DE19748321A1 Material manufacturing process for transistor conductor frame/system carrier |
| 03/24/1998 | US5730640 Wire reinforcement for women's clothing |
| 03/24/1998 | US5730215 Refrigerant tubes for heat exchangers |
| 03/17/1998 | US5727411 Method of forming grooves on metal pipe and groove-forming apparatus |
| 01/21/1998 | EP0739171B1 Wire reinforcement for women's clothing |
| 10/09/1997 | WO1997036702A1 Method for machining metal plate |
| 10/09/1997 | CA2250756A1 Method for machining metal plate |
| 10/01/1997 | CN1160845A Process for producing flat heat exchanger tubes |
| 09/30/1997 | US5671630 Method for rolling Z-section sheet piles |
| 09/23/1997 | US5669260 Method of manufacturing a c-shaped rail with profiled surfaces |
| 08/07/1997 | DE19603555A1 One-sided profiling of components made of light-metal sheet |
| 07/02/1997 | EP0781610A2 Process for producing flat heat exchange tubes |
| 06/17/1997 | US5638897 Refrigerant tubes for heat exchangers |
| 04/24/1997 | DE19539082A1 Tool carrier for round jaw rolling tools |
| 04/03/1997 | WO1997011796A1 Method of rolling deformed bar and roll for deformed bar |
| 03/12/1997 | CN1144724A Plate pressing rolling plastic finish-forming machine |
| 03/05/1997 | CN1144147A Changeable section spring rolling technology and equipment |
| 02/26/1997 | EP0662018A4 Hollow bars and method of manufacture. |
| 01/22/1997 | CN1140980A Wire reinforcement for women's clothing |
| 01/07/1997 | US5590559 Method and apparatus for domain refining electrical steels by local mechanical deformation with multiple scribing rolls |
| 01/07/1997 | US5590556 Apparatus for the manufacture of a thin metallic strip |
| 12/11/1996 | CN1137434A Method for making formed clamping strap |
| 10/30/1996 | EP0739171A1 Wire reinforcement for women's clothing |
| 10/09/1996 | EP0736345A1 Method for manufacturing a profiled rail |
| 10/09/1996 | CN1132669A Method for rolling Z-section sheet piles |
| 09/10/1996 | US5553377 Method of making refrigerant tubes for heat exchangers |
| 08/28/1996 | EP0728049A1 Hot rolled beam and method of manufacture |
| 06/13/1996 | DE19543414A1 Verfahren zum Walzen von Spundwandbohlen mit Z-förmigem Querschnitt A method of rolling sheet piles with Z-shaped cross-section |
| 05/15/1996 | EP0711630A1 Flat steel wire for side rails of oil ring in internal combustion engine and manufacturing method |
| 04/17/1996 | CN1120473A Cone spiral rolling mill |
| 03/27/1996 | CN1119134A Hollow profile steel |
| 03/12/1996 | CA2038760C Roll-formed automotive bumper and method of making same |
| 03/07/1996 | DE4431495A1 Process for making multi=edged wire with screw=like windings |
| 11/29/1995 | EP0683703A1 Manufacture of metallic strip |
| 09/06/1995 | CN1107758A Hot rolled beam and method of manufacture |
| 07/20/1995 | WO1995019114A1 Wire reinforcement for women's clothing |
| 07/12/1995 | EP0662018A1 Hollow bars and method of manufacture |
| 05/18/1995 | WO1995013151A1 Hot rolled beam and method of manufacture |
| 05/03/1995 | CN2195980Y Auxiliary attachment of steel mill for non-round billet |
| 04/25/1995 | US5408856 Apparatus for domain refining electrical steels by local mechanical deformation with multiple scribing rolls |
| 04/06/1995 | DE4333500A1 Verwendung eines vorzugsweise geschlossenen, stranggepreßten Profils, sowie Hohlprofil, sowie Verfahren zur Herstellung eines im Querschnitt gestuften Bleches mit unterschiedlichen Wandstärken Use of a preferably closed, extruded profile, and the hollow profile, and to processes for the preparation of a stepped plate in cross-section with different wall thicknesses |
| 04/04/1995 | US5403532 Production process for a gasket and tool for performing the process |
| 03/14/1995 | US5397402 Scribing and rolling metals to form patterns |
| 02/21/1995 | US5391333 Method of making a gasket |
| 01/05/1995 | DE4315692A1 Steel fibre for the reinforcement of concrete |
| 10/05/1994 | CN1093161A Pipe for flowing of refrigerant in heat exchanger |
| 09/28/1994 | EP0617250A2 Refrigerant tubes for heat exchangers |
| 09/28/1994 | CN1025986C Roll forging device attached to press |
| 09/27/1994 | US5350464 Silicon steel strip having mechanically refined magnetic domain wall spacings and method for producing the same |
| 08/18/1994 | WO1994017932A1 Manufacture of metallic strip |
| 08/04/1994 | DE4300818A1 Concrete-reinforcing steel wire |
| 07/27/1994 | EP0557353B1 Method of manufacturing a gasket |
| 07/14/1994 | DE4300158A1 Mfr. of hollow axle body with nearly square final cross=section |
| 06/16/1994 | DE4242150A1 Steel fibre for reinforced concrete - with a completed fibre sheared off and the end of the next wire segment bent, followed in succession by embossing and bending of its other end |
| 06/09/1994 | DE4241004A1 Stretch roller unit used in drop forging - has automatic clamping and release action on tool packet for rapid and automatic tool exchange |
| 04/26/1994 | US5306058 Tubular roll-formed automotive bumper |
| 04/14/1994 | WO1994007619A1 Hollow bars and method of manufacture |
| 04/14/1994 | CA2145522A1 Hollow bars and method of manufacture |
| 10/27/1993 | CN1022547C Production process of crowbar and its die |
| 09/01/1993 | EP0557353A1 Method of manufacturing a gasket. |
| 07/29/1993 | DE4201746A1 Method of formation of grooves on extruded bars or tubes - by passing the tube or bar between toothed wheels whilst the material is soft |
| 06/01/1993 | US5215245 Method for roll embossing metal strip |
| 12/01/1992 | US5167585 Blind riveting assembly |
| 10/15/1992 | DE4111791A1 Cylinder head gasket for IC engine |