Patents for B21D 53 - Making other particular articles (18,517)
05/1989
05/30/1989CA1254769A1 Method for producing a multiple v-groove pulley and a pulley produced by said method
05/24/1989EP0317075A1 Fabrication and assembly of metal catalytic converter catalyst substrate
05/24/1989CN1033019A Method of making heat exchanger and hollow shape for such
05/23/1989US4832316 Wall security fixtures
05/23/1989US4831863 Apparatus for forming loop-shaped starting pieces such as metallic binding bands into prescribed final shapes
05/23/1989US4831705 Method of manufacturing a sheet metal poly-V pulley
05/17/1989CN1032913A Apparatus for longitudinal rolling of varying-section blanks
05/16/1989US4829950 Lightweight, high strength, wear resistant
05/16/1989US4829647 Method of making low friction finger follower rocker arms
05/11/1989DE3834768A1 Bremsschuhrippe und verfahren zu ihrer herstellung Brake shoe rib, and processes for their preparation
05/10/1989EP0315354A2 Apparatus for and a method of securing together two generally sheet-like members
05/10/1989EP0314682A1 Apparatus for loading radiator fins into trays.
05/09/1989US4827605 Apparatus for securing straight tubes between two tube sheets in a pressure-tight manner
05/09/1989US4827594 Process for lining a peripheral tube of a steam generator
05/09/1989US4827590 Method of making of header for automotive air conditioner evaporator
05/03/1989CN2036875U Special forming equipment for making non-conventional type joint for construction shuttering boards
05/02/1989US4826708 Method of manufacturing a steel plate with a seal coating for a steel laminate gasket
05/02/1989US4826405 Fan blade fabrication system
05/02/1989US4825675 Top roll exchanging apparatus for a wheel rim forming machine
05/02/1989US4825524 Method of making a wheel trim ring
04/1989
04/27/1989DE3735076A1 Method for the production of a double-walled tubular hollow body, tools for carrying out the method and a hollow body produced by the method
04/26/1989EP0313344A2 Method of making a knife having a scalloped cutting edge
04/26/1989EP0313253A2 Tab receptacle with fixed beam contacts
04/25/1989US4823608 Method of measuring residual stress in a carrier produced in manufacturing of a belt for continuously variable transmission
04/25/1989CA1252990A1 Method and apparatus for forming an air gap pipe
04/18/1989US4821650 Ironing board
04/18/1989US4821548 Apparatus for chamfering edges of a rim element
04/18/1989CA1252618A1 Method and an apparatus for the manufacture of heat exchanger rolls
04/12/1989EP0311147A2 Cable tie ribbon installation tool and ribbon therefor
04/12/1989EP0310693A1 Method for making cutting blades
04/11/1989US4820355 Controlling grain size in sheets, stacking, roll bonding, heat treatment, superplastic forming
04/11/1989US4819472 Method of wheel manufacture for correcting rotational non-uniformity of a pneumatic tire and wheel assembly
04/11/1989US4819468 Roll forming notches in a thin-wall power transmission member
04/11/1989CA1252272A1 Method of manufacturing fin-tube heat exchangers
04/06/1989WO1989002854A1 Abuse resistant, safety-edge, controlled-opening convenience-feature endclosures
04/05/1989EP0310121A2 Production method of pumping and/or guiding means for fluid machines and radial impeller manufactured thereby, in particular coolant impeller for combustion engines
04/05/1989EP0309747A2 Method and device for manufacturing a light-metal vehicle wheel
04/04/1989US4817262 Paint drain closure attaching method
03/1989
03/28/1989US4815307 Key blade and method of producing same
03/28/1989US4815186 Wheel manufacture for correction of rotational non-uniformity of a pneumatic tire and wheel assembly
03/28/1989US4815185 Method for belling and expanding coils
03/21/1989US4813697 Rear fork for motorcycles
03/21/1989US4813262 Method for forming loop-shaped starting pieces such as metallic binding bands into prescribed final shapes
03/15/1989EP0306899A1 Method of making heat exchanger and hollow shape for such
03/14/1989US4811581 Apparatus for preforming a substantially flat blank of an open clamp
03/08/1989EP0305632A1 Improved method of making a heat transfer tube
03/07/1989US4809529 Flaring apparatus for flaring a rim element
02/1989
02/22/1989EP0303924A2 Fan rotor manufactured from a thin metal disc, and its production method
02/21/1989US4806726 Apparatus for machining a bent elongated member of variable configuration
02/21/1989US4805283 Method for forming slit fin coils
02/15/1989EP0303431A1 Process for producing a chassis for vehicles
02/14/1989US4803764 Apparatus for manufacturing a spacer frame for insulating glass
02/14/1989CA1249915A1 Method of production of cylindrical body
02/08/1989EP0302809A2 Method of manufacture an enhanced heat transfer surface and apparatus for carrying out the method
01/1989
01/31/1989US4800745 Spur gear automatic production process
01/26/1989EP0249625A4 Ink jet barrier layer and orifice plate printhead and fabrication method.
01/24/1989US4799909 Sheet metal poly-V pulley and manufacturing method thereof
01/24/1989US4799694 Piston ring and method of making the same
01/24/1989US4799540 Heat exchanger
01/17/1989US4798241 Mixed helix turbulator for heat exchangers
01/17/1989US4798075 Method and apparatus for making a bowed external spring retaining ring of the E-shaped type
01/17/1989CA1248739A1 Fabricated liner article and method
01/12/1989DE3820932A1 Method and apparatus for manufacturing multi-grooved pulleys, as well as a multi-grooved pulley manufactured according to this method
01/10/1989US4796345 Method of fabricating a rim gear, such as a starter rim gear made of sheet metal
01/05/1989DE3720485A1 Tube-expanding apparatus
01/03/1989US4794985 Finned heat exchanger tubing with varying wall thickness
01/03/1989US4794812 Gear-shift lever having variable thickness walls
01/03/1989US4794775 Method of producing a heat transfer tube for single-phase flow
12/1988
12/29/1988WO1988010385A1 O-ring seals, articles of manufacture incorporating the same and methods of making and using the same
12/28/1988EP0296270A1 Method for making a seamed or flanged connection between tubes and end closures, and apparatus, especially for carrying it out
12/28/1988CA1247592A Finned heat exchanger tubes and method and apparatus for making same
12/28/1988CA1247460A Draw-spinning of integral vehicle wheel rim and disc segments
12/28/1988CA1247395A Apparatus for and method of duplicative punched notching of the serration edges of key blanks
12/20/1988US4792317 Method for making a magnetic shield
12/20/1988US4791713 Method of forming a sheet metal fan blade
12/20/1988CA1247078A1 Heat transfer tube having internal ridges, and method of making same
12/20/1988CA1246978A1 Method of and apparatus for making spacers for use in multiple-pane windows of the like
12/20/1988CA1246836A1 Method of attaching a tube to a fin
12/15/1988WO1988009703A1 Method of bending band knife
12/14/1988CN88103053A Hollow shaft fixing drive element with axially different property of stoff to it by expanding itself
12/13/1988CA1246330A1 Blade twisting apparatus
12/07/1988EP0293758A1 Button collet and method and apparatus for making the same
12/07/1988CN88103203A Hollow shaft made of material with low elasticity modulus
12/06/1988US4789380 Clutch rotor for an electromagnetic clutch and method of production thereof
12/06/1988US4789263 Process for the production of a ball-point pen tip supplied with liquid ink, and tip produced thereby
12/06/1988CA1245859A1 Die set combination for making pin-back badges
12/06/1988CA1245837A1 Production procedure of brake shoes
12/01/1988DE3716026A1 Method of producing a joint endoprosthesis
11/1988
11/30/1988EP0292795A1 Hollow shaft with driving elements affixed by means of expansion and with axially differing material properties
11/30/1988EP0292794A1 Hollow shaft of a material with a small modulus of elasticity and driving elements affixed by means of expansion
11/23/1988EP0292127A2 Finned heat exchanger element and method of making the same
11/22/1988US4785647 Method and apparatus for sizing rings
11/22/1988CA1245042A1 Tool for and method of making hollow articles
11/17/1988EP0291499A2 Device for fabricating spacing frames for insulating glass panes
11/15/1988US4783898 Method of producing a shaft having plate-like member joined thereto
11/08/1988US4782998 Method and apparatus for press-cutting various patterns
11/08/1988US4782858 Valve cover for a compressor
11/08/1988US4782571 Method for securing straight tubes between two tube sheets in a pressure-tight manner
11/08/1988US4782570 Fabrication and assembly of metal catalytic converter catalyst substrate
11/08/1988US4782559 Button collet and method and apparatus for making the same