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)
11/1980
11/11/1980CA1089410A1 Internal and external extruded nipples or nozzles in pipe headers or boiler drums
10/1980
10/29/1980EP0018056A1 A method and apparatus for rolling an elongated tube to a conical mast without the use of an internal mandrel
10/15/1980EP0017145A1 Process for manufacturing surface-coated pipes by winding, and apparatus for carrying out this process
10/14/1980US4227572 Finned tubing
10/01/1980EP0016162A1 A metal pipe as well as a method and plant for its production
10/01/1980EP0016099A1 Method and installation for manufacturing multilayer pipes
10/01/1980EP0016026A1 Manufacturing process of a head cylinder provided with cooling or reinforcing corrugations
10/01/1980EP0015981A1 Process for butt-joining of two successive metal strips coated with a thermoplastic polymer film and device for carrying out such process.
09/1980
09/30/1980US4224984 Finned tube useful for heat exchangers
09/23/1980US4224085 Wire forming process
09/23/1980CA1086260A1 Method and apparatus for the extrusion of burred edges of holes in a metal sheet, as well as a sheet with one or more extruded burr holes formed in accordance with said method
09/17/1980EP0015712A1 Method of producing multiple-wall composite pipes
09/17/1980EP0015621A1 A tube for a cracking plant
09/17/1980EP0015620A1 A method for producing a composite tube for a cracking plant
09/16/1980US4223196 Welded tubular articles and method for making the same
09/16/1980US4222160 Method of making heat exchange tubing assembly
09/03/1980EP0014813A1 Method of fabricating slit tubes for a tube welding machine and device for carrying out this method
09/02/1980US4220028 Method and device for producing tube bends
09/02/1980CA1085023A1 Process for manufacturing forge-welding steel pipe
08/1980
08/26/1980CA1084368A1 Multiorifice structure and method of making same
08/20/1980EP0014681A1 Method and apparatus for fabrication of a laminae heat exchanger
08/20/1980EP0014474A1 Method for the production of a tube
08/19/1980US4217886 Radiant energy collecting or emitting element and method and tool for manufacture thereof
08/19/1980CA1083860A1 Method of producing continuous butt welded pipes
08/19/1980CA1083797A1 Method of making an improved hose and tube coupling
08/12/1980US4216826 Heat transfer tube for use in boiling type heat exchangers and method of producing the same
08/12/1980US4216575 Method of reforming the fins of a finned tube
08/06/1980EP0013870A1 Machine for manufacture of spiral tubing with folded seam
08/06/1980EP0013800A1 Improvements relating to heat exchangers
08/05/1980US4215559 Corrugation apparatus
08/05/1980US4215481 Sheet metal drafting device
07/1980
07/29/1980US4214925 Method for fabricating brazed aluminum fin heat exchangers
07/29/1980US4214362 Gripping means
07/29/1980CA1082643A1 Production of elongated bodies with plural longitudinal passages
07/22/1980US4213323 Method and apparatus for extruding a burred edge of a hole in a metal sheet
07/22/1980US4213231 Manufacture of metal strip
07/15/1980CA1081626A1 Separator arrangement for start-up system
07/15/1980CA1081547A1 Process for forming curved hollow elements and an apparatus for carrying out this process
07/01/1980US4210477 Tube forming method
07/01/1980US4210090 Formation of radius elbows and O.G. sets
06/1980
06/26/1980WO1980001260A1 Manufacture of high performance alloy in elongated form
06/25/1980EP0012382A1 Rolling mill for manufacturing finned tubes
06/24/1980US4209122 Manufacture of high performance alloy in elongated form
06/17/1980US4208004 Method for making augers
06/17/1980CA1079463A1 Overlapped plated steel strip for making anticorrosive double wall steel pipes
06/11/1980EP0011916A1 Method and machine for forming tubes from a strip
06/10/1980US4207453 Method of producing seam welded tube
06/03/1980US4205546 Process for forming curved hollow elements and an apparatus for carrying out this process
06/03/1980US4205544 Apparatus for bending corrugated pipe
06/03/1980CA1078651A1 Reinforcing welds for fluid conduit wrapping for vessels
06/03/1980CA1078645A1 Tubular member straightening, descaling and hydraulic testing apparatus
05/1980
05/28/1980EP0011096A1 Line pipe forming apparatus
05/27/1980US4204415 Process and apparatus for continuously transforming a strip to an elongated pipe
05/27/1980US4204309 Process of fabricating hollow bead rings
05/20/1980US4203311 Tubular articles of manufacture and method of making same
05/20/1980CA1077691A1 Method for producing clad steel pipes
05/13/1980CA1077250A1 Multiple storage tank fabrication procedure
05/06/1980CA1076888A1 Method and apparatus for making multi-layer spiral pipe
04/1980
04/29/1980US4200482 Process and apparatus for the production of a pipe-shaped hollow body, especially of container tubes from a multilayer composite sheet material
04/29/1980US4200235 Multiple piece torch tip
04/29/1980US4199968 Band making apparatus
04/29/1980CA1076314A1 Process and apparatus for the continuous and repetitive production of discrete articles from deformable materials
04/22/1980US4198842 Hand operated tube crimping apparatus
04/17/1980WO1980000667A1 Method for producing by repousse work of a metal sheet bent pipe,with a thin wall and without a joint bead,specific radius of curvature,opening angle and pipe diameter,with or without terminal cylindrical ends,from a thick wall tubular blank,and machine for implementing such method
04/16/1980EP0010057A1 Method and machine for spin forming thin-walled seamless tubular elbows
04/15/1980US4197729 Hold down roll assembly for aligning longitudinal tubular edges in a tube forming apparatus
04/15/1980US4197728 Flexible piping method and apparatus of producing same
04/08/1980US4196838 Methods for the manufacture of longitudinal-seam welded tubes
04/08/1980CA1075051A1 Method of forming hollow cylindrical parts with internal contours
04/08/1980CA1075049A1 Apparatus and method for forming cylindrical valve hubs
04/01/1980US4195784 Three layer irrigation tube and apparatus and method for producing same
04/01/1980US4195688 Heat-transfer wall for condensation and method of manufacturing the same
04/01/1980CA1074627A1 Method and apparatus for manufacture of reinforced smooth flow pipe
03/1980
03/25/1980US4194384 Method of manufacturing heat-transfer wall for vapor condensation
03/25/1980US4194381 Device for the cold working of heat exchanger tubing for the attachment of spiral fins
03/18/1980US4193283 Method of slitting a double or triple stranded bar
03/11/1980US4192170 Drawing die for making a pipe elbow
03/11/1980US4192052 Method for bonding a heat exchanger fin to a tube
03/11/1980CA1073191A1 Storage tank construction procedures
03/06/1980WO1980000367A1 A metal pipe as well as a method and plant for its production
03/05/1980EP0008586A1 Method and device for manufacturing tubular bodies
03/05/1980EP0008456A1 Method and device for manufacturing tubes for heat exchangers
03/04/1980US4191319 Galvanized tube welded seam repair metallizing process
03/04/1980US4190941 Method of making cooled valves for internal combustion engines and valves obtained thereby
02/1980
02/20/1980EP0007962A1 Device for wire processing
02/19/1980US4188813 Method and machine for the manufacture of long concrete drills provided with helical splines over part of their length
02/19/1980CA1071809A1 Clad metal tubes
02/12/1980US4187711 Method and apparatus for producing a high fin density extruded heat dissipator
02/07/1980WO1980000133A1 Method and installation for manufacturing multilayer pipes
02/06/1980EP0007871A1 Machine for the hot forming of collars in convex bottoms
02/05/1980US4186779 Corrugated metal tube
02/05/1980US4186586 Billet and process for producing a tubular body by forced plastic deformation
01/1980
01/29/1980US4185486 Rotatable piercing tools for forming bossed holes
01/24/1980WO1980000066A1 Manufacturing process of a head cylinder provided with cooling or reinforcing corrugations
01/15/1980CA1069986A1 Machine for welding seams in automotive wheel rim blanks
01/15/1980CA1069771A1 Multiple size culvert pipe rolling machine
01/15/1980CA1069686A1 Method and apparatus for the production of multiple gauge strip by draw shaving
01/08/1980US4182412 Finned heat transfer tube with porous boiling surface and method for producing same
12/1979
12/25/1979US4179915 Apparatus for the external calibration (sizing) of tubular elements
12/25/1979US4179911 Y and T-finned tubes and methods and apparatus for their making
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