Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 151 - 200 out of 2,367

Document Document Title
WO/2007/069425A1
A method of manufacturing an electric resistance welded tube which can provide an electric resistance welded tube with excellent weld characteristics by forming its lateral end part in a proper shape immediately before the electric resis...  
WO/2007/061913A2
Embodiments of the present invention provide a system (10) operable to provide power and control through a rotating interface. The system (10) generally includes a control unit (12) and a distributor unit (14). The control unit (12) is o...  
WO/2007/055405A1
A method of producing a seam-welded pipe having good welded portion characteristics with high efficiency which positively forms the shape of the opposite ends of the rounded width of a band material immediately before seam-welded into a ...  
WO/2007/002679A2
Preliminary weld seam integrity testing in tube production. In a preferred embodiment, an "ovaling pass" station helps subject a tube to weld seam integrity testing that can ferret out weld seam problems much more reliably than with conv...  
WO/2006/134667A1
A device and a method for controlling welding angle capable of eliminating restrictions produced when a conventional floating type control device is adopted to maximally develop the advantages of the floating type control device by adopt...  
WO/2006/068967A2
An impeder for use in an electric induction welding process is provided. Optionally the impeder does not require internal forced cooling. In embodiments using internal forced cooling a high efficiency cooling system is provided.  
WO/2006/057836A2
Non-detachable welded joints with certain new or improved properties and the provision of such non-dtachable welded joints by ultrasonic impact treatmetn, is described involving conforming to select treatment parameters to control the fo...  
WO/2005/118202A2
An improved control device and method is usable with flexible heating wire having a conductive core with a Negative Temperature Coefficient (NTC) layer and a helically wound heater conductor within an insulative outer sheath. The conduct...  
WO2004108341B1
A shear-assisted solid state welding method for joining of metal parts (1,2), involves a first step of heating opposing surfaces (7,8) of the metal parts (1,2) in a non-passivating environment to a temperature in the hot working temperat...  
WO/2005/070602A1
Described herein are a process for induction welding of heating elements for radiators in general, and the heating elements obtained using said process, said elements being made up of headers (2) and tubular columns (3) made of steel, as...  
WO/2005/068125A1
The invention relates to a method for isolating a semi-finished product (1) consisting of a ductile material, in particular for separating metal strips in bands and to the production of wire and shaped wire. Said semi-finished product co...  
WO/2005/060315A1
A piston particularly adapted for heavy-duty diesel engine applications is fabricated from separate parts having circumferentially extending joining surfaces that are heated prior to bonding to an elevated temperature sufficient to enabl...  
WO2003100164A9
A metal cord (100) comprising at least two metal strands (101 A-G). At least one strand (lO1D) is welded, said welded strand having an elongation at rupture of more than 30% of the elongation at rupture of an identical strand without weld.  
WO/2005/005070A2
An apparatus for performing a plurality of magnetic pulse forming or welding operations includes a power supply (11), a plurality of inductors (13), and a power distribution system (12) for selectively connecting the power supply (11) to...  
WO/2004/105993A1
The machine (1) comprise at least one U-shaped magnetic circuit (2) provided with a field winding (3), comprising at the outer end of each arm of the magnetic circuit (2) one respective induction electrode (5s, 5i), both electrodes being...  
WO/2004/058429A1
A method fbi- joining vehicle components together to form a vehicle frame assembly (10) where the components are formed from dissimilar materials such as metallic and no-mmetallic materials. A composite body mount bracket (30) may be att...  
WO/2004/012895A1
An automated method for forge welding tubulars comprises heating the tubular ends to be joined in a welding chamber while the heated tubular ends are maintained aligned and parallel relative to each other and at a small spacing (S), wher...  
WO/2004/011183A1
A method for controlled cool down of forge welded tubular ends is disclosed, wherein the tubular ends are heated to a predetermined temperature above 1200° Celsius when the tubular ends are pressed together and thereby joined by forge w...  
WO/2004/007135A1
A method of joining heavy duty oilfield, well, or other tubulars comprises joining the tubulars by forge welding and flushing a reducing flushing gas around the heated tubular ends during at least part of the forge welding operation such...  
WO/2004/007134A1
A method of joining expandable tubulars and expanding the joined tubulars comprises joining the tubulars by forge welding and flushing a reducing flushing gas around the heated tubular ends during at least part of the forge welding opera...  
WO/2003/053626A2
The invention concerns a heat-seal device for heat-sealing a moving packaging material (1) comprising a layer which can be heated by electromagnetic induction and a thermoplastic material layer incorporating a heat-sealing zone (2) which...  
WO/2003/047783A1
The invention relates to a method for changing sets of rolls consisting of top rolls, lateral rolls, and a bottom roll, and mounted in chocks of a welding stand of a continuously operating longitudinal tube welding machine. The inventive...  
WO/2003/035320A1
The invention relates to a method of friction stir welding in which use is made of a rotating friction stir welding tool, said tool having a probe, the method comprises, (a) temperature control of the tool during welding of a workpiece o...  
WO/2003/013777A1
An impeder for manufacturing a welded pipe which has an insulating case (4) and, housed therein, a laminate (10) of coated steel sheets (8) each having a steel sheet having a thickness of 0.3 mm or less and, formed on the surface thereof...  
WO/2001/097994A1
A method and apparatus for welding a shaft having an open seam defined between opposed longitudinal edges, comprising passing the shaft along its longitudinal axis through an array of pressure rollers which contact the surface of the sha...  
WO/2001/095132A1
A gap welding process (10) for manipulating a movable robotic welder (30) for making a weld between two or more substantially immovable work pieces (51) using a higher level programming language (20). The gap welding process (10) perform...  
WO/2001/093641A1
An apparatus (10) and method for preheating welds uses a centered induction plate (12) having preferably a plurality of induction coils (30, 32) to impart the generation of heat in the materials to be welded (14), being interactively con...  
WO/2001/087531A1
A production method comprising the steps of dividing a metal-made precision machine component, having a conduit or a conveying path through which liquid or gas in a cylinder passes, into a plurality of segments at an arbitrary surface in...  
WO/2001/081021A2
A method of hydroforming a tubular structure of varying diameter along its longitudinal axis, comprising the formation of a tubular blank (44, 80) member by welding together, at their periphery, tubes (30, 32, 52. 54) of different diamet...  
WO/2001/039921A1
In high frequency welding apparatus in which high frequency electrical heating current is supplied to metal surfaces (10, 11; 42-49;52, 54) to be welded together by contacts engaging the metal which is advanced toward a weld point (1; 1a...  
WO/2001/033909A2
An apparatus and system for using magnetic fields to heat magnetically susceptible materials within and/or adjacent to adhesives, resins, or composites so as to reversibly or irreversibly bond, bind, or fasten opaque or non-opaque solid ...  
WO/2001/030116A1
An induction heating apparatus and method for heating a substantially continuous first bondline defined by a length of thermally responsive bonding material positioned between a first member and a second member. The first member or secon...  
WO/2001/019549A1
A connecting rod (12) is fitted with metallic sliding bearings (22, 26) which are bonded to the connecting rod (12). The bond is achieved without the application of heat to either the connecting rod (12) or the bearings (22, 26) by adhes...  
WO/2001/019561A1
The invention relates to the joining of a support matrix of a honeycomb (4), especially a catalyst support body, on at least one end face; said support matrix consisting of at least partially structured layered or wound metal sheets and ...  
WO/2000/078493A1
The method for coating the seam of a welded tube (20) of this invention includes applying a mixture of the desired protective metal coating in powdered form and a liquid flux over the internal surface of the welded seam with the welded s...  
WO/2000/076716A1
The invention concerns a method for assembling metal parts without any risk of their being melted, when assembled at high temperature. It consists in using as filler material a powder whereof the melting point is not less than the meltin...  
WO/2000/043158A1
A fitting gear (110) for assisting in the alignment of metal plates (118 and 126) so that the edges thereof can be welded together includes an inverted substantially U-shaped electromagnet (112) which, when energized, is adapted to be se...  
WO/2000/037210A1
The invention relates to a blade and to a rotor for a gas turbine and to a method for linking the blade parts of a gas turbine. The invention provides a blade section (1) and at least one additional blade part (4, 16, 21). Said blade sec...  
WO/2000/025973A1
A method of solid state welding for joining metal parts having opposed planar and parallel surfaces which includes quickly heating the opposed surfaces of the metal parts with a high frequency induction heater to the hot working temperat...  
WO/2000/003834A1
Method for repairing and producing an integrally bladed rotor for a hydraulic engine, wherein at least one blade section is removed in case of repair leaving behind a stub section (13) for welding a replacement blade section (20) and whe...  
WO/1999/048334A1
The invention relates to a method and a heating device (1) for the inductive heat treatment of workpieces (2), especially for gelling or bringing to incandescence flanged areas of car body parts. The heat treatment is carried out by mean...  
WO/1999/039861A1
A modified method of friction stir welding of members applying a non-consumable rotating probe further comprises a preheating of the assembled members prior to the welding operation. A welding apparatus is also disclosed provided with a ...  
WO/1999/029465A1
A drill bit cutter is disclosed. The cutter comprises a thermally stable polycrystalline (TSP) diamond, a tungsten carbide substrate, and a braze filler metal composition containing relatively large amounts of titanium. A method of brazi...  
WO/1999/008828A1
An apparatus for amorphous bonding of tubulars comprises a clamping assembly (104, 105, 106, 107), which clamping assembly is adapted to maintain a pair of tubulars (112, 113) of which the ends are to be bonded in substantial axial align...  
WO/1998/034754A1
The invention relates to an induction welding device for joining two pre-strips in an installation for continuous production of a hot-rolled steel strip from continuously cast slabs, which is wound into a coil after being rolled out into...  
WO/1998/033619A1
A method for joining well and other oilfield tubulars by amorphous bonding comprises the steps of positioning a body of amorphous material (16) between adjacent and surfaces of a pair of oilfield tubulars (3, 4) that are to be joined and...  
WO/1998/022266A2
A board product comprises a matrix of a plastic clay, reinforced with a glassy inorganic fibre, the amounts of clay and inorganic fibre being in the respective ranges 29 to 80 per cent by weight and 15 to 55 per cent by weight, character...  
WO/1997/048515A1
Method for welding two sheet sections and device for carrying out said method. Welding is carried out in the form of butt welding by generating a high-frequency electromagnetic field with the aid of a coil. With this method the coil and ...  
WO/1997/023325A1
A method for making a catalytic converter by providing a form (50) for holding metal strips (28, 30) in place, individually placing metal strips or groups of metal strips (28, 30) within the form (50) until it is filled, sliding the asse...  
WO/1997/022523A1
In order to accomplish a longitudinal joint of polymer lined aluminium with induction heat the current in an inductor (2) at the joint can be concentrated in that several parallel current conducting conductors (4, 5) are laid next to eac...  

Matches 151 - 200 out of 2,367