| Patents for B21D 15 - Corrugating tubes (1,257) |
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| 03/22/2003 | CA2404539A1 Method for producing longitudinally welded helically corrugated metal tubing |
| 02/06/2003 | WO2003009952A1 Container beading |
| 02/06/2003 | CA2452012A1 Container beading |
| 01/29/2003 | EP1279446A1 Container beading |
| 01/22/2003 | EP1276571A1 Gilled pipe |
| 01/08/2003 | CN1389311A Apparatus for continuously producing spiral corrugated metal pipe |
| 12/11/2002 | CN1383943A Superplastic forming process of titanium alloy corrugated pipe |
| 12/05/2002 | US20020178774 Apparatus for continuous production of a helically corrugated metal tube |
| 12/05/2002 | US20020178773 Tube corrugating apparatus and method |
| 12/05/2002 | DE10126399A1 Vorrichtung zur kontinuierlichen Herstellung eines schraubenlinienförmig gewellten Metallrohres An apparatus for continuously producing a corrugated metal tube helically |
| 12/04/2002 | EP1262250A2 Method for the continuous production of a helically corrugated metal pipe |
| 11/29/2002 | CA2410942A1 Non-inflammable, translucent polycarbonate molding materials |
| 11/21/2002 | WO2002092251A1 Tube corrugating apparatus and method |
| 11/21/2002 | DE10122763A1 Vorrichtung zur Herstellung von Querwellen an einem Metallrohr Apparatus for producing transverse corrugations on a metal pipe |
| 11/19/2002 | US6481260 Device for embossing metal pipe |
| 11/19/2002 | CA2145292C Manufacture of helically corrugated conduit |
| 11/13/2002 | EP1256395A2 Apparatus to produce annular corrugations in a metallic tube |
| 11/12/2002 | US6477878 Machine for producing corrugated wheel spacers |
| 10/24/2002 | DE10119569A1 Device for non-cutting working of elongated workpieces comprises a processing station arranged on a machine frame and a calibration device determining the reduction in the diameter of a workpiece toward the input side |
| 10/15/2002 | US6464257 Vibration decoupler apparatus |
| 10/09/2002 | EP0900131B1 Structuring process that stiffens and embellishes the surface of thin material webs |
| 09/04/2002 | CN1367052A Equipment for making ring waveform metal pipe |
| 09/03/2002 | US6442992 Hollow rack shaft and method of manufacturing the same |
| 08/22/2002 | US20020112519 Machine for producing corrugated wheel spacers |
| 08/21/2002 | EP1232027A1 System and method for corrugating spiral formed pipe |
| 07/31/2002 | CN1360981A Production process and special apparatus of double-faced corrugated metal pipe |
| 07/11/2002 | US20020089180 Hose fitting and die for preparation |
| 07/11/2002 | US20020088264 Hydraulic positioning assembly for cold rolling tubes |
| 07/02/2002 | US6412651 Screw-thread forming apparatus, screw-thread forming method and fuel supply pipe assembly therewith |
| 06/26/2002 | CN2496579Y Fully-automatic multi-roll longitudinal fin forming machine |
| 06/26/2002 | CN2496576Y Water distributor sliding apparatus for two-wall corrugated pipe forming machine |
| 06/25/2002 | US6409226 “Corrugated thick-walled pipe for use in wellbores” |
| 06/25/2002 | US6408664 Hydraulic positioning assembly for cold rolling tubes |
| 06/18/2002 | US6405919 Process for the continuous production of longitudinally seam-welded and corrugated metal tubes |
| 06/11/2002 | US6401508 Components of a hydroforming machine |
| 06/11/2002 | US6401507 Hydroforming, in-die hydropiercing and slug-ejecting method and apparatus |
| 05/29/2002 | EP1207972A1 Hydraulic positioning assembly for cold rolling tubes |
| 05/29/2002 | DE10051946A1 Verfahren zur Herstellung von aus PGM-Werkstoffen gefertigten rohrförmigen Konstrutkrionsteilen mit radial umlaufenden wellenförmigen Auswölbungen A process for the production of made of PGM materials tubular Konstrutkrionsteilen with radially circumferential undulating bulges |
| 05/22/2002 | EP1206328A1 Hydroformed collapsible drive shaft and steering shaft and methods of making the same |
| 05/22/2002 | CN1349866A Production method of tube structural member with wave-shaped raised part in circumference direction |
| 05/22/2002 | CN1349865A Manufacture of corrugated metal pipe used as oil return pipe in supercharger of diesel engine |
| 05/14/2002 | US6386012 Method and device for producing bellows |
| 04/25/2002 | US20020046586 Process for the production of tubular structural parts fabricated from PGM materials and having circumferential undulating bulges |
| 04/24/2002 | EP1199116A2 Method of making tubular components with radial wave-shaped bulges |
| 04/24/2002 | CN2487465Y Shaper for metallic hose with double screws |
| 04/24/2002 | CN2487464Y Spiral tube shaper |
| 03/28/2002 | WO2002024366A1 Method of forming cold diametrally reducing roll for metal pipe and metal pipe formed by the method |
| 03/14/2002 | US20020029598 Apparatus for producing annularly corrugated metal tubes |
| 02/27/2002 | EP1181994A1 Device for the production of annularly corrugated tubes |
| 01/30/2002 | CN2474246Y Equipment for making metallic dual face corrugated pipe |
| 01/17/2002 | WO2002004783A1 Deformable member |
| 01/09/2002 | EP1169150A1 Method for manufacturing a pipe with a not circular cross-section and device therefor |
| 01/03/2002 | US20020000114 Device for embossing metal pipe |
| 01/02/2002 | EP1166912A2 Apparatus for and method of manufacturing metallic bellows |
| 12/26/2001 | CN1076644C Method and equipment for rolling corrugated pipe |
| 12/20/2001 | US20010052253 Manufacturing method and manufacturing apparatus for metallic bellows |
| 12/19/2001 | CN1076229C Structuring process that stiffens and protects surface of thin material webs |
| 12/13/2001 | WO2001094046A1 Bulging metal-bellows forming method, and metal bellows forming device |
| 12/13/2001 | DE10027541A1 High-strength metal bellows manufacturing process involves shotblasting bellows after heat treatment at least in one region of inner flap and one region of outer flap |
| 12/06/2001 | WO2001092399A1 Non-inflammable, translucent polycarbonate molding materials |
| 12/06/2001 | DE10027341A1 Flammwidrige transluzente Polycarbonat-Formmassen A flame-retardant, translucent polycarbonate molding compositions |
| 12/06/2001 | DE10020011A1 Rippenrohr" Finned tube " |
| 12/04/2001 | US6325953 Plastic working method and plastic working machine |
| 11/15/2001 | US20010039822 Method and device for producing bellows |
| 11/08/2001 | DE10021456A1 Verfahren und Vorrichtung zur Herstellung eines wölbstrukturierten Hohlzylinders Method and apparatus for manufacturing a vault-structured hollow cylinder |
| 11/07/2001 | EP1151811A2 Method and apparatus for making a hollow cylinder with curved bulged structure |
| 11/07/2001 | CN1320496A Apparatus for embossing metal pipe |
| 11/06/2001 | US6311533 Method and apparatus for forming features in cans |
| 11/01/2001 | WO2001081022A1 Gilled pipe |
| 10/18/2001 | DE10027306C1 Method to shape round end of pipe to form polygonal cross-section involves pressing pipe end to form cambered cross-section, inserting support mandrel and shaping pipe end with calibration ring |
| 10/04/2001 | EP1138404A2 Device for embossing a metal pipe |
| 10/03/2001 | CN2451256Y Die centre apparatus for forming hollow bead |
| 09/04/2001 | US6282939 Method and device for producing bellows |
| 08/23/2001 | US20010015088 Screw-thread forming apparatus, screw-thread forming method and fuel supply pipe assembly therewith |
| 08/16/2001 | US20010013241 Hollow rack shaft and method of manufacturing the same |
| 08/16/2001 | EP1123855A2 Hollow rack shaft and method of manufacturing the same |
| 08/08/2001 | EP1021258B1 Method & apparatus for forming features in cans |
| 08/08/2001 | CN1306890A Method for continuous manufacturing longitudinal seam welding wave-form metal pipe |
| 08/07/2001 | US6270126 Hydroformed hose fittings and related hose assemblies |
| 08/02/2001 | US20010010113 Process for the continuous production of longitudinally seam-welded and corrugated metal tubes |
| 07/18/2001 | CN1304483A Hose fitting and die for preparation |
| 07/18/2001 | CN1304007A Connecting corrugated flexible hose for split air-conditioner |
| 07/10/2001 | US6257038 Method of manufacturing a columnar material |
| 06/26/2001 | US6249968 Method of making a robust gosper fin heat exchanger |
| 05/30/2001 | CN1066357C Small diamter thin-wall metal shaped-pipe forming method |
| 05/29/2001 | US6237389 Apparatus and method for forming screw-thread on a pipe |
| 05/22/2001 | US6233999 Method for ironing spline teeth in pressed stepped sheetmetal and sheetmetal clutch drum formed by same |
| 05/16/2001 | EP0664862B1 Manufacture of helically corrugated conduit |
| 05/10/2001 | WO2001032327A1 System and method for corrugating spiral formed pipe |
| 05/10/2001 | CA2389756A1 System and method for corrugating spiral formed pipe |
| 04/24/2001 | US6222148 Method for producing a multilayer thin-walled bellows of stainless steel |
| 04/24/2001 | US6221299 Structuring process that stiffens and protects the surface of thin material webs |
| 04/18/2001 | CN2426772Y Balanced four-gear groove mill head |
| 04/10/2001 | CA2101486C Apparatus for continuously shaping a metal tube |
| 04/04/2001 | EP1088605A2 Process and apparatus for continuous production of corrugated metal pipe with parallel ridges |
| 04/04/2001 | CN2425724Y Metal pipe convex groove shaping apparatus |
| 03/21/2001 | EP1084774A1 Method for the continuous production of a longitudinally seam welded and corrugated metal tube |
| 03/20/2001 | US6202281 Method for producing multilayer thin-walled bellows |
| 03/01/2001 | WO2001014077A1 Hydroformed collapsible drive shaft and steering shaft and methods of making the same |
| 02/28/2001 | EP1079193A2 Method of making a finned heat exchanger core |