Patents
Sitemap › B21 - Mechanical metal-working without essentially removing material; Punching metal › B21C - Manufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling; Auxiliary operations used in connection with metal-working without essentially removing material › B21C 37 - Manufacture of metal sheets, rods, wire, tubes, profilesor like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
Patents for B21C 37 - Manufacture of metal sheets, rods, wire, tubes, profilesor like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape (9,784)
02/1983
02/15/1983US4373365 Up-set shrinker for producing thick wall steel pipe
02/09/1983EP0071273A1 Method of manufacturing a coiled flexible tube, and coiled flexible tube
02/01/1983US4371108 Methods of manufacturing large tubular columns
02/01/1983US4370790 T-joint method and product
01/1983
01/25/1983CA1139923A1 Method of producing multiple-wall composite pipes
01/19/1983EP0069896A1 Method for producing a superconducting hollow conductor
01/11/1983US4367640 Apparatus for forming sheet metal duct work
01/04/1983CA1138691A1 Production of thick welded steel pipe and apparatus thereof
01/04/1983CA1138608A1 Method of producing light gage metallic strip material
12/1982
12/28/1982CA1138234A1 Projection screen and process for production thereof
12/21/1982US4364252 Method for the manufacture of diaphragm bellows
12/14/1982US4363435 Method for producing a tube for a cracking plant
12/08/1982EP0066356A1 Process for the production of fine amorphous metallic wires
12/08/1982EP0065953A1 Apparatus for manufacturing a metal pipe.
11/1982
11/30/1982CA1136524A1 Enhanced oxide whisker growth on peeled a1-containing stainless steel foil
11/23/1982CA1136001A1 Process for manufacturing tubular bodies, particularly for preserved food cans
11/16/1982CA1135487A1 Helically wound pipes and method
11/10/1982EP0064197A2 Method of processing cylindrical surface
11/02/1982CA1134650A1 Up-set shrinker for producing thick wall steel pipe
11/02/1982CA1134581A1 Method and apparatus for producing composite pipes
10/1982
10/19/1982US4354883 Method for improving the residual stress in austenitic stainless steel pipes and the like by induction heating
10/12/1982US4354086 Automated can resistance welder
10/12/1982US4353764 Gluing bands of fibrous cellulosic, metallic, or plastic materials
10/12/1982US4353494 Process and apparatus for the manufacture of annular work pieces for subsequent conversion into finished products
10/12/1982US4353236 Machine for flattening the internal bead of welded tubing
10/12/1982US4353235 Edge preforming of metal plate
10/12/1982US4353234 Heat transfer surface and method of manufacture
10/12/1982US4353232 Apparatus for making corrugated tubing and method for joining corrugated tubing
10/12/1982US4353162 Apparatus and process for manufacturing finned tubes
10/05/1982US4352281 Method and apparatus for bending pipes
10/05/1982US4352227 Apparatus for producing a finned tube for heat transfer
09/1982
09/30/1982WO1982003191A1 Method and apparatus for production of tubes,and resulting product
09/28/1982US4351174 Method of producing a profile strip
09/28/1982CA1132402A1 Z-bar guide apparatus
09/22/1982EP0060820A1 Method and apparatus for production of tubes
09/22/1982EP0060671A2 Process for continuously producing a polymeric laminate tape having a plurality of metal wires embedded therewithin
09/21/1982US4350936 Cascaded fin winding machine control and method
09/21/1982US4349949 Method of making heat exchangers
09/21/1982CA1131914A1 System for planishing metal pipe
09/21/1982CA1131894A1 Composite construction process and superconductor produced thereby
09/15/1982EP0059957A2 Method of forming electric welded steel tube
09/07/1982CA1131159A1 Method for producing improved heat transfer surface
09/07/1982CA1131158A1 Finned heat transfer tube with porous boiling surface and method for producing same
09/01/1982EP0059028A2 Continuous production of polished and buffed tubing
08/1982
08/31/1982US4346739 Composite metal tubing
08/31/1982US4346576 Apparatus for severing corrugated metal products
08/25/1982EP0058245A1 Method of and apparatus for the continuous production of endless deformable pipes from laminated film tape
08/24/1982CA1130238A1 Process for forming semi-float axle tubes and the like
08/04/1982EP0057039A1 Flow drill for the provision of holes in sheet material
08/03/1982US4342150 Process and device for filling with a hardenable filler gaps where corrosive attack can occur in tube and fin type heat exchangers
08/03/1982CA1128737A1 Process and apparatus for production of welded tubes
07/1982
07/22/1982WO1982002350A1 Machine for making bodies of multilayer high-pressure vessels
07/20/1982US4339941 Method and apparatus for producing thick welded steel pipe
07/20/1982US4339938 Method and apparatus for forming metal pipes and tubes
07/20/1982US4339935 Method for calibrating tubular articles
07/13/1982US4339654 Methods for the manufacture of heat exchanger panels
07/08/1982WO1982002156A1 Device for helical arrangement of bodies of high-pressure vessels
07/06/1982US4337826 Heat exchangers and method of making same
07/06/1982US4337564 Machine and method for forming tubes from a strip
06/1982
06/29/1982US4336643 Method for the processing of heat exchanger, tube-strip elements
06/29/1982US4336642 Method of enlarging the heat exchange surface of a tubular element
06/23/1982EP0054343A2 Method for manufacturing tapered rods and apparatus therefor
06/10/1982WO1982001835A1 Machine for flattening the internal bead of welded tubing
06/01/1982US4332073 Method of producing multiple-wall composite pipes
06/01/1982US4332069 Making heat exchangers
05/1982
05/25/1982US4331631 Enhanced oxide whisker growth on peeled Al-containing stainless steel foil
05/25/1982US4331281 Process and apparatus for production of welded tubes
05/25/1982US4330934 Apparatus for pulling transverse fins onto a plurality of pipes
05/25/1982US4330913 Method of making heat exchangers
05/18/1982CA1123587A1 Method of reforming the fins of a finned tube
05/12/1982EP0051554A2 Pipe press
05/11/1982US4328696 Method and apparatus for forming a heat shield plate
05/11/1982US4328694 Outlet tube and method
05/11/1982CA1123381A1 Method and apparatus for producing seamless tubes
05/11/1982CA1123240A1 Manufacture of metal strip
05/05/1982EP0050706A2 Apparatus for welding and burr removing of wheel rims
04/1982
04/28/1982EP0050363A1 Method and device for the manufacture of heat exchanger panels
04/27/1982US4326583 Heat exchanger panels
04/27/1982US4326398 Apparatus to equalize in height, by hammering, the line of welding of longitudinally welded tubes
04/21/1982EP0015981B1 Process for butt-joining of two successive metal strips coated with a thermoplastic polymer film and device for carrying out such process
04/15/1982WO1982001142A1 Installation for manufacturing rim blanks
04/06/1982US4323750 Device for feeding, with elongate lining material, an installation for lining a tubular member
04/06/1982US4323186 Manufacture of high performance alloy in elongated form
03/1982
03/23/1982CA1120464A1 Heat exchangers and method of making same
03/17/1982EP0047527A2 Composite dual tubing
03/17/1982EP0047526A2 Composite dual tubing
03/16/1982US4319938 Method of butt-jointing metal tapes coated with a thermoplastic polymer film
03/16/1982CA1120136A1 Electronic control system for strip peeling apparatus
03/16/1982CA1119849A1 Line pipe forming apparatus and method
03/10/1982EP0047082A1 Method of production of cladding tube for nuclear fuel element
03/09/1982US4318289 Pipe cutting method and apparatus
03/09/1982CA1119469A1 Apparatus and method for forming seamed tube
03/04/1982WO1982000607A1 Method and apparatus for manufacturing a metal pipe
03/03/1982EP0040234A4 Z-bar guide apparatus.
03/02/1982US4317348 Making contoured hollows
02/1982
02/16/1982US4315776 Method of producing light gage metallic strip material
02/09/1982US4314861 Manufacturing method of elbows made of cast stainless steel
02/09/1982CA1117749A1 Method of and device for producing multi-layer pipes
02/03/1982EP0044858A1 A flange forming drill means.
02/02/1982US4314125 Electric seam welding device in the production equipment of hot-dip metal-coated steel tubes
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