Patents for B21D 53 - Making other particular articles (18,517)
09/1978
09/19/1978US4114398 Process for producing articles of jewelry, trinketry and the like, made of metals of different colors
09/19/1978US4114238 Hinge for jewelry and the like
09/19/1978US4114218 Method of forming flat four-sided fastener parts having an opening therein
09/19/1978CA1038699A1 Means for making double groove pulleys
09/12/1978US4113536 Method and apparatus for automatically making frames
09/12/1978US4112732 Method and apparatus for shaping integrally-shaped type brake disks for cars
09/12/1978US4112727 Method and apparatus for making pipe flanges
09/12/1978US4112569 Method of manufacturing a heat exchanger
09/12/1978US4112566 Method of manufacturing heat exchange panels
09/05/1978US4110858 Lock nut forming apparatus
08/1978
08/29/1978US4110592 Method of splicing tape by soldering
08/29/1978US4109711 Heat exchange panel
08/29/1978US4109598 Method of making a unitary frame for a winch
08/29/1978US4109542 Spun V-grooved sheet metal pulley with thick hub wall integral with thin side wall
08/29/1978US4109501 Method for the production of heat exchanger fins
08/29/1978US4109361 Method and arrangement for the production of annular articles
08/29/1978CA1037319A2 Forming method and machine for splining power transmission members
08/29/1978CA1037301A1 Flat base truck rim forming system
08/29/1978CA1037233A1 Coupling element for slide fastener and method of making the same
08/22/1978US4108240 Heat exchanger system
08/15/1978US4107394 Corrugated sheet metal heat transfer member
08/15/1978US4106172 Vehicle wheels
08/08/1978US4105389 Method of winding a tube coil, and an arrangement for performing said method
08/08/1978US4104790 Pipe installing apparatus for large heat exchangers
08/01/1978US4103570 Method of and apparatus for making a sheet metal zig-zag key
07/1978
07/25/1978US4102167 Method of manufacturing integral fluid pressure rupturable apparatus
07/11/1978US4099928 Method of manufacturing a heat exchanger body for recuperative exchangers
07/04/1978US4098722 Catalyst supports
07/04/1978US4098137 Pulley and method of making same
07/04/1978US4098108 Punch and die assembly for use in the production of heat exchanger fins
06/1978
06/27/1978US4096616 Method of manufacturing a concentric tube heat exchanger
06/20/1978US4096225 Method of making a fastener element
06/20/1978US4095450 Axle making method and apparatus
06/20/1978US4095335 Automatic tube puller
06/13/1978US4094184 Machine for forming joining pipes
06/13/1978US4094112 Metal door frame and trim clip
06/13/1978US4094051 Method of making sheaves
05/1978
05/23/1978US4090813 Martensitic stainless steel
05/16/1978US4089097 Method of forming an annular slot in a longitudinally splined annular member
05/09/1978US4088001 Method of manufacturing a strut member made of a tube material for use with drum brakes
05/09/1978US4087996 Method and apparatus for correcting distortion in gas turbine engine blades
04/1978
04/25/1978US4085488 Method and apparatus for winding and forming cooling coils
04/18/1978US4084526 Method of forming rings
04/11/1978US4083215 Method and tool for making a sheet metal pulley
04/04/1978US4082935 Apparatus and method for making wheel rim blanks and the like
03/1978
03/28/1978US4081204 Ball bearings and ball races
03/28/1978US4081026 Hollow article
03/28/1978US4080704 Circular form process for pulleys
03/28/1978US4080703 Radiating or absorbing heat exchange panel
03/28/1978US4080702 Method for obtaining hollow articles
03/21/1978US4079492 Method of making bearing pulley
03/14/1978US4078940 Concrete reinforcing elements and reinforced composite incorporating same
03/14/1978US4078287 Method of forming sealing members
03/07/1978US4077698 Conductor, claw, and method and apparatus for its production
03/07/1978US4077107 Method of manufacturing friction plates and plates made by the method
02/1978
02/21/1978US4074518 Apparatus for making a link-type conveyor belt
02/21/1978US4074408 Method for making vehicle wheel assembly
02/21/1978US4074406 Method for manufacturing solar energy collectors
02/14/1978US4073177 Method for bending thick profiled parts, part obtained thereby and application thereof to pane framings and the like
02/07/1978US4072262 Method of fabricating a solar heating unit
02/07/1978US4071934 CFT Box fin
01/1978
01/31/1978US4071360 Method of forming a friction disc member
01/31/1978US4071127 Method of working for bending metal material and thereby obtained friction core plate of friction clutch
01/31/1978US4070897 Method for producing an outer shell for overrunning clutches
01/31/1978US4070895 Method for manufacturing bottom valve seat
01/24/1978US4069572 Method of making clutch pulley assembly
01/17/1978US4068362 Method of forming rings
01/10/1978US4067219 Heat exchanger fin roll
01/10/1978US4067217 Apparatus for forming a wheel rim
01/10/1978US4067098 Method of manufacturing brake drums
01/03/1978US4066121 Heat exchanger with header having improved fluid distribution
12/1977
12/13/1977US4062603 Axial stop ring and its application and a method and device for its manufacture
12/13/1977US4062261 Key cutting apparatus
12/13/1977US4062215 Process for expanding wheel components
12/06/1977US4061167 Single piece tree shear blade having cylindrically curved cutting portion and method of making same
12/06/1977US4061098 Process for bending metal sheet
12/06/1977US4061056 Method of making outer blades for electric shavers
11/1977
11/29/1977US4059882 Method of making an annular tube-fin heat exchanger
11/22/1977US4058880 Propeller making apparatus and method
11/08/1977US4056862 Method and apparatus for forming a wheel nut with welded cap
11/01/1977US4056593 Method of making a fastener
11/01/1977US4056291 Clutch housing and bearing assembly and method of making the same
11/01/1977US4055978 Procedure for manufacturing hydraulic plunger-type pump bodies
11/01/1977US4055977 Method and apparatus for making double groove pulleys
11/01/1977US4055976 Method of roller spinning cup-shaped metal blanks and roller construction therefor
11/01/1977US4055882 Method of making a coupling element for a slide fastener
10/1977
10/25/1977US4055067 Method and a punch/die assembly for the production of heat exchanger fins
10/25/1977US4054982 Method of forming circularly bent articles, in particular wheel rims, from a straight metal profile strip and apparatus for performing the method
10/18/1977US4053969 Heat exchanger
10/04/1977US4052077 Shaft seal with clinch-butt metal case and method of making same
10/04/1977US4051710 Pull tab attachment tool
10/04/1977US4051704 Method for the manufacture of an ornamental head lug of the single unit type for use in bicycles
09/1977
09/27/1977US4050321 Multi V-grooved pulley structure and method of making same
09/27/1977US4050284 Fastening member for anchoring a railway rail
09/27/1977US4050135 Flat base truck rim forming system
09/20/1977US4048839 Die means having workpiece releasing means
09/20/1977US4048834 Apparatus for forming serpentine heat exchangers
09/20/1977US4048703 Collar sleeves and process and tool for the manufacture thereof
09/06/1977US4046090 Apparatus and method for making decorative tiles
08/1977
08/30/1977US4044441 Bearings