Patents for B21D 53 - Making other particular articles (18,517)
08/1992
08/23/1992CA2061619A1 Microwave oven waveguide
08/20/1992DE4200521A1 Bending hollow sections for window frames - using machine with simple system to adjust radius of bend
08/19/1992CN1017918B Hollow shaft made of material with low elasticity modulus
08/18/1992US5139380 Scalloped nut and method of construction
08/18/1992US5138908 Vegetation cutting tool and method of manufacture
08/18/1992US5138859 Method and apparatus for smooth-rolling and deep-rolling multi-stroke crankshafts
08/18/1992US5138765 Method of making an enhanced hydraulically expanded heat exchanger
08/13/1992DE4103992A1 Glazing kiln ventilation grid - has one-piece stamped frame with stamped centre opening to take grid insert
08/11/1992US5137203 Method for manufacturing a drum brake shoe
08/11/1992US5136871 Process and apparatus for bending hollow profile strips into spacer frames for insulating glass panes
08/11/1992CA1306126C Wall fastener
08/05/1992EP0497438A1 Method and device to hydraulically expand tubular hollow profiles
08/04/1992US5134900 Crankshaft with hollow pins
08/04/1992US5134768 Apparatus for automatically mounting and removing replacement pins for pipe expanding mandrels
07/1992
07/28/1992US5133492 Method and apparatus for separating thin-walled, multiport micro-extrusions
07/28/1992US5133204 Apparatus for producing sunken shapes on the outer circumference of rotationally symmetrical sheet-metal workpieces and a method for producing the same
07/22/1992CN1062860A Process and device for making ladle by cold spinning
07/16/1992DE4111155C1 Upsetting roller with peripheral upsetting groove - has radially protruding, limiting bead also protruding beyond outer end of upsetting face
07/15/1992EP0494843A1 Method for making a double-walled tubular piece .
07/15/1992EP0494697A2 Method of wheel manufacture for correcting rotational non-uniformity of a pneumatic tire and wheel assembly, apparatus for performing such method and the resulting wheel
07/15/1992EP0494285A1 Assembly of a cylindrical body made to finished dimensions.
07/14/1992US5129220 Hollow rope chain with simulated diamond cut
07/14/1992US5129146 Method of manufacturing poly-v pulleys from sheet metal
07/08/1992EP0493792A1 Method of manufacturing drive plate
07/07/1992US5127155 Method of tension expanding tube to plate and apparatus therefor
07/07/1992US5127154 Method for sizing and installing tubing in manifolds
07/01/1992CN1017278B Corrugated pipe, method of forming corrugated pipe and apparatus for manufacturing
07/01/1992CN1017220B Making method of base riser
06/1992
06/30/1992US5125256 Method of manufacturing outside ring
06/30/1992US5125255 Method of making an electromagnetic coupling disc
06/30/1992US5125225 Process for making hollow diamond cut rope chain
06/25/1992DE4135606C1 Blank forming mechanism for V-belt pulley - has tool with slidable counter bearing ring, supporting workpiece edge region
06/24/1992EP0491574A1 Method and apparatus for separating thin-walled, multiport micro-extrusions
06/24/1992CN1062110A Method for munufacturing heat-exchanger and its apparatus
06/24/1992CN1062105A Ring rolling machine with two radial main rollers
06/23/1992US5123166 Ear forming method of sheet metal made of poly-v pulleys
06/23/1992CA1303903C Barrier layer and orifice plate for thermal ink jet print head assemblyand method of manufacture
06/16/1992US5121810 Muffler cover
06/16/1992CA1303389C2 Forming chamfered flange and splines in thin-wall member
06/11/1992WO1992009778A1 A method and an apparatus for manufacturing closed spacer frames of hollow thin-walled profiles
06/11/1992DE4039292A1 Verfahren zum herstellen eines waermetauschers und vorrichtung zur durchfuehrung des verfahrens A method for manufacturing a heat exchanger and apparatus for performing the method
06/10/1992EP0249625B1 Ink jet barrier layer and orifice plate printhead and fabrication method
06/10/1992CN2106671U Improved shutter blade trimmer
06/09/1992WO1992010329A1 Method of manufacturing a heat exchanger, and device for carrying out the method
06/09/1992US5119869 Method of producing a telescopic 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
06/09/1992CA1303022C Method of manufacturing a motorcycle radiator
06/03/1992EP0488664A1 Heat exchanger assembly with wrapped tubing
06/03/1992EP0488500A1 Scalloped nut and method of construction
06/03/1992CN1061547A Production technology of heat collecting strip with ribs
06/02/1992US5117721 Method of forming perforating rule and blades
06/02/1992US5117669 Apparatus for bending hollow profile strips
05/1992
05/29/1992CA2097174A1 Method and an apparatus for manufacturing closed spacer frames of hollow thin-walled profiles
05/27/1992EP0487007A2 Process for the manufacture of radiant panels and the like and radiant panel thus obtained
05/27/1992EP0486876A2 Machine element with at least a fitting member pressure-fitted on a shaft
05/27/1992DE4106962C1 Metal profile bending and assembly machine - has profile bending mechanism near tyre receiving wooden disc, abutting latter via freely rotating support
05/26/1992US5115654 Expansion apparatus having three borehole-channel systems
05/26/1992CA1301611C Method and apparatus for forming stabilizer bars having novel end constructions
05/24/1992WO1992009535A1 Glass spinner manufacture
05/24/1992CA2072078A1 Glass spinner manufacture
05/21/1992DE4100842C1 Coil spring with several concentric spring element turns - has symmetrical spring elements to attain coincidence of load and geometrical axes
05/20/1992CN2104717U Integral make-up machine for major diameter loop-forming element
05/19/1992US5113584 Process for manufacturing an asymmetric pulley from a metal disk
05/19/1992CA1301051C Ironing board
05/16/1992CA2055409A1 Method of making tooth point and product
05/07/1992DE4033945A1 Method of producing helical coil springs - by cutting deep spiral groove in bar with central axial hole
05/06/1992CN1060800A Making method of turbulence tube
05/06/1992CN1060799A Production method for making heat exchanger with finned turbulence tube
05/05/1992CA1299947C Multiple cell condensing heat exchanger and method
04/1992
04/29/1992EP0483044A2 A bending machine
04/28/1992US5107579 Process of forming a folded seam connection between two cup-shaped workpieces
04/28/1992CA1299345C Button collet and method and apparatus for making the same
04/27/1992CA2028638A1 Method for producing internally finned tubing
04/22/1992EP0481378A1 Process for producing high strength steel belt
04/21/1992USRE33888 Method of making a camshaft for reciprocating piston engines
04/21/1992US5105917 Disc brake piston
04/21/1992US5105697 Multiple stage shaving die
04/21/1992US5105643 Method of and apparatus for making perforations in spacer frames for use in multiple-pane windows
04/21/1992US5105522 Process of manufacturing a friction ring provided with a sinter-bonded friction facing
04/16/1992WO1992006318A1 Gaskets
04/14/1992US5103559 Method for making heat exchanger having at least two collecting pipes
04/09/1992DE4031576A1 Tube-plate connection for heat exchanger - has tube ends pushed into tensioners widening in plate and pressed home by radial widening
04/08/1992CN2100948U Profile aluminium-aluminium composite tube plate
04/07/1992USRE33868 Method of fastening drive elements of a hollow shaft
04/07/1992US5101561 Heat exchanger and a method for a liquid-tight mounting of an end plate to an array heat exchanging elements of the heat exchanger
04/07/1992US5101554 Process for producing an assembled camshaft as well as assembled camshaft consisting of a shaft tube and slid-on elements
04/01/1992EP0478507A1 Process and apparatus for manufacturing heat echangers
04/01/1992EP0477469A1 Method to produce a device to connect belt or similar conveyors and the connecting device produced thereby
03/1992
03/31/1992US5099677 Pipe expanding apparatus
03/31/1992US5099671 Combination braking, punching and shearing apparatus for forming sheet metal strips
03/31/1992US5099576 Heat exchanger and method for manufacturing the heat exchanger
03/31/1992US5099575 Method for connecting a coolant tube and header of a heat exchanger
03/31/1992US5099574 Method of making a heat exchanger assembly with wrapped tubing
03/31/1992CA1298280C Heat exchanger and method to produce same
03/25/1992CN1059698A Method of producing devices for interconnecting conveyor or similar belts and connectors produced by method
03/24/1992US5097899 Shell with integral internal passage and method of making same
03/24/1992US5097727 Method of making a knife having a scalloped cutting edge
03/24/1992US5097590 Mandrel for vertical-type pipe expanding apparatus
03/24/1992US5097582 Apparatus for the exact positioning and fastening of several parts onto a hollow body
03/19/1992WO1992004146A1 Key duplicator