| Patents for B21D 53 - Making other particular articles (18,517) |
|---|
| 09/14/1993 | US5243844 Process for producing curved sections in hollow profile strips |
| 09/14/1993 | US5243842 Method of making a brazeable metal pipe having tube-insertion apertures formed with guide lugs |
| 09/14/1993 | US5243744 Machine for producing venetian blinds and punching device therefor |
| 09/07/1993 | US5241883 Method of manufacturing a knife blade |
| 09/02/1993 | WO1993016896A1 High strength automotive seat frame and method |
| 09/02/1993 | WO1993016824A2 Cold-forming of toothed wheels from sheet steel |
| 09/02/1993 | DE4306053A1 Catalytic exhaust cleaning system for vehicle - uses steel sheet rolled up to form honeycombed spiral for insertion within housing |
| 09/01/1993 | EP0557540A1 Roof-closure forming apparatus |
| 08/31/1993 | CA2005406C Method for manufacturing a seat post of a bicycle |
| 08/25/1993 | CN1075436A Roller for thread of cover plate billet of metal container |
| 08/24/1993 | US5238058 Spiral flighted double walled heat exchanger |
| 08/24/1993 | US5237849 Method of manufacturing fins for heat exchangers |
| 08/24/1993 | US5237845 Method of manufacturing a shutter for a protective envelope |
| 08/24/1993 | US5237745 Method of and apparatus for manufacturing drive plate |
| 08/24/1993 | US5237744 Method of cold-forming toothed wheels |
| 08/20/1993 | CA2088025A1 Cold-forming of toothed wheels from sheet steel |
| 08/18/1993 | EP0555631A1 Method of making gearing parts with outwardly facing teeth |
| 08/18/1993 | CN1075276A Method for integrated forming of hub for bicycle |
| 08/17/1993 | US5236520 Geometric configuration; at least one bend; preferred orientation of grains; warm working |
| 08/17/1993 | US5235886 Apparatus for manufacture of vehicle wheels |
| 08/10/1993 | US5233853 Stretch straightening hairpin bender |
| 08/05/1993 | WO1993015370A1 Apparatus for producing a stress relieving zone in a heat exchanger |
| 08/05/1993 | WO1993015369A1 Welded plate heat exchanger |
| 08/05/1993 | WO1993014892A1 A method for gradually bending spacer profiles for insulating glass, and an apparatus for carrying out the method |
| 08/04/1993 | EP0553481A1 Spacer ring for heating radiators |
| 07/28/1993 | EP0552776A1 Rolling process for forming pulleys with one or more V-grooves and with an integral phonic wheel |
| 07/28/1993 | CN1021696C Method and apparatus for producing corrugated expanding ring of bearing |
| 07/27/1993 | US5230134 Method of making a petal rod |
| 07/27/1993 | CA1320630C Tension expander for plate fin coils |
| 07/22/1993 | WO1993013891A1 Method of forming material made of sheet metal into boss part and method of forming sheet metal into pulley |
| 07/21/1993 | CN2138531Y Cold bending machine for electric saw blade |
| 07/20/1993 | US5228198 Method of manufacturing a heat exchanger assembly with wrapped tubing |
| 07/14/1993 | CA2059205A1 Method and apparatus for making a vehicle anti-theft key with resistor |
| 07/13/1993 | US5226306 Bead forming metal die for forming metal gasket |
| 07/09/1993 | CA2086732A1 Method of manufacturing a knife blade |
| 07/07/1993 | CN1073898A Forming method and equipment for integral automobile bridge casing using steel pipe |
| 07/06/1993 | US5224370 Leaf spring cambering apparatus |
| 06/30/1993 | EP0549554A1 A method of assembling window and glass-door casements |
| 06/30/1993 | EP0548850A1 Heat exchanger |
| 06/30/1993 | CN1021473C Clutch rotor for electromagnetic clutch and method for producing thereof |
| 06/29/1993 | CA1319565C Production of brazeable pipes |
| 06/24/1993 | WO1993013377A1 Heat exchanger of the welded plate type and method for fabricating modules of plates for such exchangers |
| 06/24/1993 | DE4218092C1 Mfg. gear part - involves using circular cylindrical part with inner toothing only on part of its length, non-toothed part being for seals |
| 06/24/1993 | CA2103581A1 Soldered plate heat exchanger and process for manufacturing plate assemblies therefor |
| 06/23/1993 | CN1073496A Manufacture of key and lock core structure |
| 06/23/1993 | CN1073381A Technology and equipment for manufacturing solar heat collector |
| 06/22/1993 | US5220727 Method making cam shafts |
| 06/22/1993 | US5220722 Quick height change adjustment for tube expander |
| 06/17/1993 | DE4140720A1 Mfg.pinions of eccentric epicyclic drive and associated rims - uses first stage to form central sections,and second stage to press teeth |
| 06/16/1993 | EP0546609A1 Integrated ball joint |
| 06/16/1993 | EP0546334A1 Method and device for manufacturing of heat-exchanger elements, and corresponding heat-exchanger element |
| 06/16/1993 | CN1073129A Method and apparatus to manufacture heat exchanger and finished heat exchanger |
| 06/16/1993 | CN1021203C Versatile tube bending and forming apparatus |
| 06/15/1993 | US5218883 Assembled shaft and process for production thereof |
| 06/11/1993 | CA2077200A1 Integrated ball joint |
| 06/10/1993 | WO1993011401A1 Perforated plates for cryogenic regenerators and method of fabrication |
| 06/09/1993 | DE4140161A1 Mfr. of stampings for ball bearing cages - uses retaining rails for holding blanks for external toothing, in addition to tags |
| 06/01/1993 | US5214848 Method for making a tube for a heat exchanger |
| 06/01/1993 | US5214847 Method for manufacturing a heat exchanger |
| 06/01/1993 | US5214833 Method of manufacturing an inner cutter for a dry shaver |
| 06/01/1993 | CA2023778C Key-cutting device |
| 05/27/1993 | WO1993009897A1 Hollow diamond cut rope chain and method of making same |
| 05/27/1993 | WO1993009893A1 Developed blank layout angle bracket |
| 05/27/1993 | CA2123508A1 Developed blank layout angle bracket |
| 05/26/1993 | CN1020945C Crankshaft with hollow journal and method for making same |
| 05/26/1993 | CN1020870C Method of making heat exchanger and hollow shape for such |
| 05/25/1993 | US5212866 Method for the manufacturing of a deep-bed wheel rim |
| 05/25/1993 | US5212863 Method for forming element-free spaces in slide fastener chain |
| 05/19/1993 | EP0542399A1 Hollow diamond cut rope chain |
| 05/19/1993 | CN2133747Y Hollow plate material for making hollow aluminium grid |
| 05/19/1993 | CN2133379Y Extruding aluminium mould |
| 05/18/1993 | US5211047 Die for bending a composite flange having a stretch portion and a straight portion |
| 05/18/1993 | US5210932 Tube expander |
| 05/12/1993 | CN2132577Y 便携式液压弯管机 Portable hydraulic pipe bender |
| 05/12/1993 | CN1071863A Process for extrusion and drawing of copper-clad lock |
| 05/05/1993 | CN1020420C Monolithic shaping method and die set for supper-deep thin shell |
| 05/04/1993 | US5206990 Method for assembling serpentine heat exchangers |
| 05/04/1993 | CA1317241C Abuse resistant, safety-edge, controlled-opening convenience-feature endclosures |
| 04/29/1993 | DE4135489A1 Corner connection press for mfr. of metal frames - has multi-sectional press head, and two clamping bodies, with blade-like press tools |
| 04/28/1993 | EP0538846A1 A method for manufacturing a heat - exchange system |
| 04/28/1993 | EP0538720A1 Method for producing a pendulously suspended chopping strip for a chopping device, chopping strip and chopping device |
| 04/27/1993 | US5205467 Prevention closure of gas passageway; superplastic forming, diffusion bonding |
| 04/27/1993 | CA1316908C High performance heat transfer tube for heat exchanger |
| 04/20/1993 | US5203223 Cold-forming of toothed wheels from sheet steel |
| 04/20/1993 | US5203194 Method of forming a trailer hitch receiver tube |
| 04/20/1993 | US5203069 Method of producing a telescopic cover with rounded corners |
| 04/13/1993 | US5202543 Manufacturing process of a fuel delivery rail assembly |
| 04/13/1993 | US5201367 Stack of plates for a plate-and-tube heat exchanger with diverging-converging passages |
| 04/13/1993 | US5201247 Assembled shaft and process for production thereof |
| 04/07/1993 | EP0535935A1 Improvement relating to diffusion bonded/superplastically formed cellular structures |
| 04/06/1993 | CA1315622C Method of making low friction finger follower rocker arms |
| 04/01/1993 | DE4222741A1 Production line for sheet metal shuttering for concrete - has stamping, folding and welding machines arranged in line |
| 03/31/1993 | EP0534704A1 Manufacturing method of a vehicle panel |
| 03/31/1993 | EP0469150A4 Package of plates for tube-plate heat exchanger with diffuser-confuser channels and a rotor die for making the plates of said package |
| 03/31/1993 | CA2057706A1 Hydrosonically microapertured thin metallic sheet materials |
| 03/24/1993 | CN1070255A Water heater and manufacturing method thereof |
| 03/23/1993 | US5196232 Metallic core coated with fused metallic material deposited on a substrate |
| 03/23/1993 | US5195239 Method for assembling shafts |
| 03/23/1993 | US5195226 Semi automatic pistol |
| 03/23/1993 | CA1314917C2 Wheel manufacture for correction of rotational non-uniformity of a pneumatic tire and wheel assembly |