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WO/1997/004895 |
A composite structure (26) comprises a body (27) having a surface. Cladding (28) covers at least a part of the surface. The body (27) and the cladding (28) are formed of different materials, at least one of which is a shape memory alloy ...
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WO/1997/003771 |
A fin pass molding apparatus having fin rolls arranged symmetrically with respect to a line center in a flow direction of a steel pipe to be molded, and a plurality of side rolls arranged in a plane perpendicular to this flow direction, ...
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WO/1997/002161 |
An air bag inflator (10) is manufactured by sandwiching a wire mesh filter (39) between a pair of flat elongated perforate strips of steel (18 and 20), thereafter rolling the sandwiched steel strips and wire mesh concomitantly to form a ...
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WO/1997/002102 |
In a method and an apparatus for producing helically-wound lock-seam tubing (15) from a metal strip (12) having longitudinal edge portions (16a, 16b), the strip (12) is fed to a forming head (14) and formed into helical shape. A lubrican...
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WO/1997/001071 |
A flat tube for a heat exchanger is disclosed. The flat tube is produced by assembling a main part (12) made of a folded metal strip defining a flat side (16), two rounded ends (18) and two side portions (20) with two free edges (22), as...
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WO/1996/034708 |
A process is disclosed for sheathing a plastic pipe with a metal sheath. A metallic strip (20) is wound around a plastic pipe (14). The metallic strip (20) has longitudinal edges (32) bent on the same side. When the metallic strip (20) i...
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WO/1996/030116 |
The invention relates to a catalyst pipe for an endothermal catalytic reaction of a process medium, with an outer casing pipe (1) with its faces sealed by a first (2) and a second base (3). Inside the casing pipe there is an ascending tu...
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WO/1996/030135 |
The invention is a process which converts rods of hot rolled metal into strips with width to thickness ratios as high as approximately 17 to 1. The process cools the rod between successive rolling mills and employs feed backward tension ...
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WO/1996/027455 |
In a method for producing helically wound lock-seam tubing (33), a metal strip is fed to a forming head in which the tubing is formed. In order to prevent lock-seam slip, a clinching roller device (30-40) forms interlocking spaced deform...
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WO/1996/027475 |
A method of forming a seamed metal tube (20c) having a metal coating (56) on at least an inside surface of the tube (20c) from a continuously moving, relatively flat metal strip (20a) is disclosed. The primary feature of the inventive pr...
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WO/1996/027456 |
The invention provides methods of manufacturing hardened stainless steel tubing, pipe, shafts and assemblies. The tubing can include having a brazed lock seam (18) or a channel seam to provide additional strength. The present invention f...
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WO/1996/027076 |
The invention concerns a multiple cam (5, 6) which can be used in a modular manner as a structural component for joining assembled camshafts. The multiple cam is produced in a plurality of stages from a sheet metal blank (1) by profiling...
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WO/1996/027069 |
A combination of a metal coiled tubing (12) and a signal transmitting passageway (14) for transmitting and/or receiving signals to well tools (16) positioned in the coiled tubing (12). The signal transmitting passageway (14) is positione...
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WO/1996/022845 |
In the present method of producing a metal hollow body (1) having a cylindrical casing which is provided on the exterior with at least one predetermined breaking line (32, 51), the casing is formed by a drawing process and the predetermi...
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WO/1996/020808 |
A method is disclosed for producing heat exchanger tubing for use in tube and shell heat exchangers having improved heat exchange and improved fluid flow around the heat exchange tubes in which cylindrical tubing is deformed by pressure ...
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WO/1996/020050 |
The invention concerns a flow-turning process for manufacturing internally geared parts, with a press mandrel (10) comprising a mandrel (1) on which is fitted a forming tool (2) and one or more pressure rollers (3). A workpiece (4) is he...
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WO/1996/009904 |
This invention provides a machining method capable of molding a tapering through hole at a stroke by one pressing operation. The boring of a work is done by using a smaller-diameter punching portion (1a) formed at a front end of a punch ...
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WO/1996/006760 |
A belt fixture for a seat belt assembly whereby the surface pressure applied to the belt can be sufficiently reduced even when a tension acts on the belt. The fixture is formed of a platy body (base plate) (2) having an elongated hole (6...
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WO/1996/006707 |
A fin insert (80) shapes the edges of an enhanced metallic strip (72, 74, 76) prior to shaping the strip into a tube and welding. The edges of the metallic strip are shaped so that the longitudinal edges of the unenhanced portion (76) of...
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WO/1996/005004 |
The invention concerns a hollow spindle, in particular a spindle designed to mount valve-actuator arms so that they can pivot to control the gas-changing valves in an internal-combustion engine. The spindle consists of an outer tube insi...
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WO/1996/003249 |
During the production of a welded pipe from a metal strip by utilizing laser welding techniques, the end portions of a metal strip are preheated so that the temperature of these portions of the metal strip to be laser welded attains a le...
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WO/1996/000821 |
Preperforated tubing is produced by forming a perforation (20) in flat strip (10) of raw material, forming a hollow, cylindrical tube from the flat strip (10), and placing a removable plug (16) into the perforation (20), so as to form a ...
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WO/1995/034387 |
The invention concerns a method for the production of a seamless hot-finished tube from steel with reduced deformability, in particular roller-bearing steel, the method calling for a pretreated and degassed as well as deoxidized liquid s...
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WO/1995/033876 |
An apparatus and method is disclosed for an improved fiber tow (120) having plural diameter metallic wires (141, 142) comprising the drawing of a first cladded metallic wire to provide a first drawn cladding of reduced diameter. The firs...
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WO/1995/032819 |
The invention relates to a method of manufacturing wire from a high alloy material in which thin-walled tubes of a ductile carbon steel filled with a powder of the high alloy material are placed in a can and powdered filler material is i...
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WO/1995/031635 |
In a weld-free pipe junction having at least two inlets (E) and one outlet (A), the outlet (A) is formed by a neck (4) shaped in the side wall of a pipe (1, 1') whose ends (2, 3) form both inlets (E). A device for producing such a pipe j...
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WO/1995/029786 |
The method of forming a coated seamed metal tube (20c) of this invention is particularly, but not exclusively, adapted to existing continuous tube forming mills, wherein the tube (20c) is formed from a metal strip (20) and welded with th...
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WO/1995/028239 |
A bright-annealed highly smooth inner surface stainless steel pipe characterized in that the roughness of the inner surface is not higher than 1.0 'mu'm in terms of Rmax, and is suitably used as a clean pipe for a semiconductor manufactu...
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WO/1995/028240 |
A forming head for incorporation in a machine for the production of helically-wound lock-seam tubing comprises a cylindrical outer shell (11) having mounted therein an array of anti-friction dyed rollers arranged to guide a metal strip a...
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WO/1995/027608 |
A metal pipe (46) and method of forming the same with an integrally formed liner for use in corrosive and abrasive environments is disclosed. The liner is comprised of a relatively thick polyethylene (40) which is thermally bonded to the...
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WO/1995/027576 |
In a method of forming grooves in a tubular member having an inner surface and an outer surface, an end of the tubular member (1) is inserted into a forming die (4) having a bore (5) of cylindrical configuration with a selected pattern o...
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WO/1995/027991 |
A superconductor cable (20) with high interstrand resistance is produced from superconductor wire strands (10) which has been electroplated with nickel (16). The wire strands (10) have filaments (12) of a superconductor alloy in a normal...
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WO/1995/025241 |
A method for making an internal upset (20A) on metal drill pipe (10) having a transition section (24A) with a curved inner periphery (28A) of a concave curvature extending continuously between the central portion (12) of the pipe (10) an...
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WO/1995/023911 |
A hollow body with at least two oval sleeves and an annular connecting journal between each of the sleeves. The outer peripheral surfaces of the sleeves project beyond the connecting journals at least in the region of the smaller radius....
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WO/1995/023043 |
A roll forming machine which includes an outboard housing (96) having dual turrets (98-99), each turret carries a pair of rotatable arbors (113-114-115-116) which can carry forming rollers (117-118). The outboard housing is slidable alon...
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WO/1995/015239 |
A dual weld for joining strips to be formed into coiled tubing. Tubing is formed from a first strip (15a) and a second strip (15b), the first and second strips of the same width. A planar end surface (Pa) is formed on an end of the frist...
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WO/1995/013917 |
A metal pipe and method of forming the same with an integrally formed liner (16) for use in corrosive and abrasive environments is disclosed. The liner (16) is comprised of a relatively thick high density polyethylene which is thermally ...
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WO/1995/009951 |
A bibcock using a tube material comprises a bibcock body (11) of a metallic tube material having a fluid control mechanism arranged therein and having a projecting cylindrical flange (21) integrally formed on an outer side surface thereo...
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WO/1995/007777 |
Twin metal billets (31) are fed to dual circumferential grooves (44) formed in a rotary wheel (43), and are advanced to a die (21) which has a die opening with a circumferentially discontinuous, annular cross section. The metal merges in...
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WO/1995/007155 |
A half-finished product for wire drawing is obtained by cutting ribbon-like material into narrow rectangular strips, welding the strips together and rounding the edges.
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WO/1995/007156 |
A plant is disclosed for producing metallic heat exchanger tubing (15) with spiral heat exchanger ribs secured to its outer surface from smooth tubing and flat, ribbon-shaped material for the ribs. In order to allow ribbed tubes (15) to ...
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WO/1995/002474 |
A tapered mandrel for a plate rolling apparatus in which the mandrel is adapted to be rotatable between support frame ends, said mandrel including a gripper (15) for holding a plate therein and a pressure roll device mounted beneath the ...
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WO/1995/001848 |
A method and an apparatus for supporting a roll molding machine stand and a method for controlling said apparatus wherein the height and inclination angle of a cluster of rolls in which a plurality of sets of rolls are continuously arran...
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WO/1995/000255 |
A continuous tube forming and coating process and apparatus, wherein the tube is formed and welded with the seam located at the bottom of the tube and the painted surface on the inside of the tube. An applicator (72) coats the inner surf...
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WO/1995/000286 |
The method of forming a seamed metal tube (20c) having a metal coating (56) of this invention includes galvanizing the strip (20) prior to welding. The strip (20) is then formed into an open seam tube (20b) and welded in an inert atmosph...
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WO/1995/000296 |
A machine for continuously producing metal tubing or metal sheathing about a cable (97) from flat metal strip (10) is designed to produce a defect-free seam weld during stop and restart operations. The welder (26), weld closing rolls (22...
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WO/1994/027755 |
A sizing die (10) for sizing a plurality of micro-extruded tubes (20) has a side fence (12), a clamping fence (14) in substantial parallel relation with and movable with respect to the side fence, a base fence (16) adjacent to and perpen...
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WO/1994/025217 |
Proposed is a method of machining and a tool (1) to be used for obtaining patterns (14) in the form of alternating ridges (12), pads, cells and ridges of triangular cross section on the surface of a blank (15). The method proposed facili...
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WO/1994/022608 |
An improved process and apparatus for forming pipe from a flat steel plate by curving the plate around a rotatable mandrel (1) in which the ratio of plate length and width is relatively high comprising the process steps and apparatus of ...
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WO/1994/022612 |
Thin-walled materials are stiffened by bulging without causing material deformations typical of deep-drawing. A material web to be structured with bulges is wound in several layers around spaced apart supporting elements (2), the materia...
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