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)
11/2003
11/18/2003US6649276 Sheet metal member and method of manufacturing the member
11/18/2003US6648209 Process for producing welded steel pipes with a high degree of strength, ductility and deformability
11/13/2003WO2003093761A1 Method and instrument for measuring bead cutting shape of electric welded tube
11/13/2003WO2003092772A2 Method of making a feature on a cannula
11/13/2003US20030211352 Metal tubular body and manufacturing method thereof
11/13/2003US20030209100 Hollow rack shaft
11/13/2003DE10221515C1 Aluminium tube manufacturing method using dressing rollers for texturing outer surface of aluminium tube
11/12/2003EP1361123A2 Seat belt anchorage plate and method of manufacturing thereof
11/12/2003EP1361018A1 Metal tubular body and manufacturing method thereof
11/12/2003EP1361003A2 Method for manufacuturing seamless steel tube
11/11/2003US6644394 Braze alloy flow-barrier
11/11/2003US6643931 Method of manufacturing a one-piece tubular doorbeam
11/06/2003US20030205843 Method of making a needle and a needle
11/05/2003CN1453080A Method of manufacturing large precise irregular pipe
11/05/2003CN1126631C Longitudinal welding & coating combined equipment for producing composite metal rod material
10/2003
10/30/2003US20030200783 Hollow tubular blank provided in wall thereof with one or more reinforcing ribs
10/30/2003US20030200642 Brittle wire business model algorithm and method and apparatus
10/30/2003DE10226517C1 Hollow profile manufacturing method has metal band welded across open side of open profile formed from metal band of varying width
10/29/2003CN1451497A Method and apparatus for producing composite steel-plastic pipe
10/29/2003CN1125967C Internally grooved heat exchanger pipe and metal bar working roll for internally grooved heat exchanger pipes
10/28/2003US6639194 Method for manufacturing a multiple walled tube
10/28/2003US6638381 Method for preparing ultra-fine grain titanium and titanium-alloy articles and articles prepared thereby
10/28/2003US6637092 Method and apparatus for winding a helical pipe from its inside
10/23/2003US20030196734 Method for manufacturing seamless steel tube
10/23/2003US20030196469 Method for manufacturing a hollow rack shaft
10/22/2003EP1354973A1 High-strength steel sheet and high-strength pipe excellent in deformability and method for producing the same
10/22/2003CN1450954A Freestanding reactive multilayer foils
10/22/2003CN1125310C Heat transter tube with cross-groove and method of manufacturing same thereof
10/21/2003US6634335 Component, especially a high-pressure component for fuel injection systems, and method for producing a component of this type
10/16/2003WO2003084692A1 Process for making a multiple duct distributor and distributor
10/16/2003WO2003084691A1 Method for producing a piezo actuator housing and corresponding piezo actuator housing
10/16/2003US20030192160 Process for forming alumninum hydroforms
10/15/2003CN2579544Y Primary forming and fine forming and welding device for producing middle straight seam steel pipe
10/15/2003CN1448230A Apparatus for producing internally grooved tube
10/15/2003CN1448228A Apparatus for producing internally grooved tube
10/15/2003CN1124182C Method for making printed angle rectangle section steel pipe
10/14/2003US6631758 Internally finned heat transfer tube with staggered fins of varying height
10/09/2003WO2003082495A1 Cold diameter reduction press molding method of metal pipe and metal pipe molded by that method
10/09/2003US20030189080 Tapered tower manufacturing method and apparatus
10/09/2003US20030188417 System for fabricating muntin bars from sheet material
10/08/2003CN1446646A Circular metal structure, its mfg. method and prodn. equipment
10/08/2003CN1446644A Metal hollow article and its mfg. method
10/07/2003US6629632 Apparatus and method for manufacturing hollow shafts
10/07/2003US6629557 Containers having apertures, ultrasonic frequency generators, gas supply and conveyors for infiltrating melts into inorganic fibers and applying ultrasonic vibration to form fiber reinforced wires having high strength and wear resistance
10/02/2003WO2003081104A2 Method of producing a sheath for a multifilament superconducting cable and sheath thus produced
10/02/2003US20030183311 Device and method for manufacturing soft metal tube
10/02/2003US20030182980 Apparatus for producing internally grooved tube
10/02/2003US20030182979 Method for producing seamless tube with groved inner surface
10/01/2003EP1348532A1 Ultrasonic bonding method
10/01/2003EP1348498A2 Circular-shaped metal structure, method of fabricating the same, and apparatus for fabricating the same
10/01/2003EP1347849A1 Flospinning method and device for carrying out flospinning
10/01/2003CN2576367Y Reinforced rectangular steel pipe
10/01/2003CN1122800C Evaporator of refrigerator
10/01/2003CN1122771C Method and apparatus for winding helical pipe from its inside
09/2003
09/25/2003US20030180568 Hollow metal object and method of its fabrication
09/25/2003US20030178529 Process for forming a sector of an air intake lip, device for practicing the same, and sector thus obtained
09/25/2003US20030177802 Circular-shaped metal structure, method of fabricating the same, and apparatus for fabricating the same
09/24/2003EP1347467A1 Sheath for multifilamentary superconductor cable and manufacturing process thereof
09/24/2003EP1345710A1 Device and method for making connections that cross over exhaust devices
09/24/2003EP1210191B1 Method and device for forming conical tube casings
09/24/2003EP1128925B1 Method for welding tubes and device for carrying out said method
09/23/2003CA2102627C Apparatus for cutting helically wound metal tubing
09/18/2003WO2003076861A1 Slotted tube with reversible usage for heat exchangers
09/18/2003WO2003076097A1 Method of manufacturing torsion bar for vehicle steering device and torsion bar
09/18/2003WO2002033340A9 Tapered fin and method of forming the same
09/18/2003US20030173765 Steering gear shaft for a steering column of a motor vehicle
09/18/2003US20030173764 Steering gear shaft for a steering column of a motor vehicle
09/18/2003US20030173071 Reversible grooved tubes for heat exchangers
09/18/2003US20030173004 Extrusing a metal alloy or composite; severing lengths of the extruded stock material to produce solid pellets of feed material for use in producing a thixotropic alloy
09/18/2003DE10212799C1 Hollow metal chamber profile, particularly for heat exchanger, comprises basic profile which has cooling ribs running parallel longitudinally on at least one outside of its flat walling
09/17/2003EP1344708A2 Steering shaft of a steering column for a motor vehicle
09/17/2003EP1344707A2 Steering shaft of a steering column for a motor vehicle
09/17/2003CN1443098A Method for making structural element having generally tubular metal wall and structural element
09/17/2003CN1121317C Constained filament electrolytic anode and process of fabrication
09/16/2003US6620388 Catalyst pipe
09/16/2003US6619162 Device for cutting tubes
09/16/2003US6619089 Tube corrugating apparatus and method
09/16/2003US6618926 System for fabricating muntin bars from sheet material
09/12/2003WO2003074207A1 Method for shaping a bent single- or multiple-chamber hollow profile by internal high pressure
09/12/2003WO2003074206A2 Method for making a plated steel armouring wire for a flexible tubular pipe transporting hydrocarbons, and armoured pipe
09/10/2003EP1040275B1 Method of making stators for moineau pumps
09/10/2003CN1441852A Metal matrix composite wires, cables and preparing method
09/09/2003US6615913 In order to enhance heat transfer capability, the wall surface area of the flow channel, which is traditionally round in cross- section, is increased without increasing the diameter or length of the channel.
09/09/2003US6615488 Method of forming heat exchanger tube
09/04/2003US20030164207 Aluminum alloy pipe having multistage formability
09/04/2003US20030163918 Method of connecting two elongated portions of metallic plate, method of manufacturing exhaust pipe of two-passage construction, and exhaust pipe of two-passage construction
09/03/2003EP1340558A1 Method of internal high pressure forming a bent single or multiple compartment hollow profile
09/02/2003US6612020 Apparatus for superplastic forming of tubing
08/2003
08/28/2003US20030159289 Process for producing a tubular component
08/27/2003EP1338664A1 Aluminum alloy pipe having multistage formability
08/27/2003CN1438923A Method and device for producing steel, especialy stainless steel press fittings
08/26/2003US6610930 Composite noble metal wire
08/21/2003WO2003068448A1 Pipe welding device
08/21/2003WO2003035915A8 Method for producing monocrystalline metallic wire
08/21/2003US20030154943 Flow path structure of hollow tube
08/21/2003US20030154815 Support casing for housing a steering shaft
08/21/2003US20030154600 Hollow member, manufacturing method therof, fluid distribution system using the hollow member, and forming apparatus of hollow member
08/20/2003EP1336438A1 Method of forming cold diametrally reducing roll for metal pipe and metal pipe formed by the method
08/20/2003EP1147003B1 Facility for manufacturing multilayered composite tubes
08/20/2003CN2566953Y Portable hub drawing machine
1 ... 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 ... 98