Class 228/145 - To form helically seamed tube

Subclass of Class 228 - Metal fusion bonding
Definition: Process including bending a long attenuated web into a tubular
No. of patents: 33
Last issue date: 02/21/2012

Number	Title	Issue Date
8118210	Methods and apparatus for applying metallic cladding to interior surfaces of pipe elbows An apparatus for applying a helical cladding bead to the interior surface of a pipe elbow has a rotor mounted to an elbow carriage so as to be rotatable about a primary axis. The elbow carriage is longitudinally movable parallel to the rotor's rotational axis. A rad...	02/21/2012
7757928	System and method for forming a continuous strip/plate from a plurality of strips/plates and for forming a pipe from the continuous strip/plate A system and method of forming a continuous strip from a plurality of strips, each strip having a leading end and a trailing end. Embodiments can include a forming apparatus that chamfers at least one of the leading and trailing ends of each strip. The chamfered tra...	07/20/2010
7434718	Device for cutting or welding tubular workpieces or the like The invention relates to a device (1) for cutting or welding tubes (3) or similar workpieces, said device comprising a guiding mechanism which is used to control the cutting or welding torch (17) along a pre-determined line and is provided with ...	10/14/2008
7287684	Filter cartridge assembly and method of manufacture An apparatus for filtering well fluids and method of manufacture is disclosed. The apparatus comprises an inner support, a filter spirally wrapped around the inner support, and an outer support wrapped around the filter enclosing the filter between the inner and out...	10/30/2007
7117702	Mobile pipe mill A portable apparatus for forming pipe from helical convulsions of elongated sheet metal. A decoiler, rolling portion and pivot are mounted on a trailer, with a rigid frame extending from pivot and being laterally pivotable at the pivot in relation to the trailer. A ...	10/10/2006
7111770	Method for producing connecting ends on metal tubes and tube piece comprising such connecting ends Connecting ends on a hose piece comprising several metal layers, in particular a strip wound metal hose piece, are produced by fixing the overlapping metal layers of a hose of larger length or of an endless hose in the region of the point of separation through weldi...	09/26/2006
7004702	System for connecting elements A fastener system for connecting and releasing two elements. The system comprises a rod-shaped product with a male part and a female part, in which the male part is sized to be receivable in the female part. Either the male or female part is provided with a screw th...	02/28/2006
6993841	Process for the production of filled wire and plate strip to create bi-color ornamental items as well as similarly made items A ribbon of color A metal is combined with a thin layer of soldering alloy, bent and soldered to form a tube, it is then filled with a core of color B metal. The compound is then drawn and/or laminated until it is transformed into a long ribbon or into a wire, exter...	02/07/2006
6884305	High-strength α+β type titanium alloy tube and production method therefor The present invention provides a high strength α+β titanium alloy pipe not requiring a large amount of cutting and enabling full use to be made of the features of titanium alloy of light weight and high strength and a method for production of the same. Specificall...	04/26/2005
6732906	Tapered tower manufacturing method and apparatus Method and apparatus for the manufacture of large-diameter, elongated, generally conical members in a continuous operation. ...	05/11/2004
6612481	Wellscreen An apparatus and method of manufacturing a wellscreen for subterranean use in oil, gas, and water wells, incorporating numerous automated processes, whereby layers of mesh are continuously sintered to a perforated strip, formed into a tube, placed over a ...	09/02/2003
6279813	Cylindrical helical seamed tube and method and apparatus therefore A cylindrical helical seamed metal tube wherein the seam thereof is at an angle of between 1 and 25 degrees with respect to the axis of the tube. A method of making the tube comprises the steps of continuously feeding the metal strip into a tubing former ...	08/28/2001
6145732	Cylindrical helical seamed tube and method and apparatus therefore A cylindrical helical seamed metal tube wherein the seam thereof is at an angle of between 1 and 25 degrees with respect to the axis of the tube. A method of making the tube comprises the steps of continuously feeding the metal strip into a tubing former ...	11/14/2000
6135343	Method for roll forming and machine and blank for this Method for the fabrication of cones of sheet material where the blank includes two curved edges that are circular and have the radius R and r respectively and a common center C. The blank further has two straight lateral edges which are angled in relation...	10/24/2000
5957366	Helically formed welded pipe and diameter control A helical weld servo controller for controlling the diameter of helically formed welded pipes adjusts the auxiliary hold down wheel position and the helix angle based on information provided by transducers regarding outgoing pipe diameter and by a laser v...	09/28/1999
4993805	Composite overhead cable structure having high seal properties and a process for producing the same Disclosed is a composite overhead cable structure having high seal properties, comprising a metallic pipe, at least one layer of stranded metallic elongated conductor surrounding the outer periphery of the pipe, and an optical fiber cable disposed within ...	02/19/1991
4763830	Method for welding ribbed pipe A method is described for manufacturing helically formed pipe from strip material. One side of the strip material is formed to provide a first side flange that projects substantially 90° relative to the plane of the strip. The opposite side of the strip ...	08/16/1988
4664307	Spirally welded tank cars Railroad tank cars are provided with spirally wound cylindrical tanks spanning and supported on wheeled trucks with a continuous weld extending the full length of the tank. A steel plate ribbon or strip is spirally wound in the form of a right circular cy...	05/12/1987
4640453	Apparatus for fabricating multi-layer spiral tubes An apparatus for fabricating multi-layer spiral tubes including first drive means for performing rotation of an inner cylinder around which a web is to be wrapped spirally a slide base moveable along the longitudinal direction of the inner cylinder, the s...	02/03/1987
4569386	Method of manufacturing a cylindrical billet A method of manufacturing a cylindrical billet having a predetermined length useable as raw material for producing a pipe. This method is practiced by way of the steps of drawing a cast slab from a casting mold on a continuous casting stand, spirally wind...	02/11/1986
4501948	Method and apparatus for forming spiral tubing A method and apparatus for forming a spiral tube from a length of metallic strip material wherein the strip is fed through a closed tube forming die operative to form the strip into a spirally wound tube having its longitudinal edges in juxtaposed relatio...	02/26/1985
4485756	Helical seam structural vessel, method and apparatus of forming same A structural vessel includes helically curved inner and outer spaced strips of material each having a plurality of helical turns, with contiguous edges of each two successive turns of the inner and outer strips being seamed together, and a helically curve...	12/04/1984
4436239	Method and apparatus for manufacturing spiral pipe In the manufacturing of a spiral pipe, there is first determined a maximum curvature which should be imparted to a strip of pipe forming material in order that a desired residual moment will be imparted to the finished pipe after the strip bent to the max...	03/13/1984
4305460	Heat transfer tube A spirally fluted metallic heat transfer tube is disclosed wherein the finished tube has improved heat transfer performance through the provision of a predetermined number range of multiple start continuous helical flutes formed along its longitudinal len...	12/15/1981
4247033	Method of and device for producing multi-layer pipes A method of and device for producing multi-layer pipes by helically winding a plurality of bands loosely arranged one above the other, which are individually withdrawn from a supply, straightened out, trimmed, and in the form of a band loop are conveyed t...	01/27/1981
4141481	Method and apparatus for making helically seamed tubing A thin perforate, helically wound welded edge tubing is used as a filter core for a roving wound filter. The slightly roughened external edges of the spirally formed welded joint greatly adds to the ability of securing the fiber roving to the tube and pre...	02/27/1979
4112251	Screw-on wire connector and method of making it A method of joining the stripped ends of electrical wires and screw-on connectors for performing the method. The method includes bunching the stripped ends of wire, inserting the bunched wires into a distortable relatively nonexpandable wire retainer havi...	09/05/1978
4082211	Method for fabricating tapered tubing Tapered spiral tube in continuous lengths is fabricated with an alternating increasing and decreasing diameter, the length being severed at the locus of change. The taper may be straight, convex or concave, the tube being produced from strip-stock which i...	04/04/1978
4074847	Welded storage tank construction including a structural fin Method and apparatus for producing a large diameter storage tank from strip metal. The strip is fed to a support assembly arranged circularly on a base and which supports the strip vertically in a helical path. The upper edge of the strip is bent into a r...	02/21/1978
4061264	Method for producing helical seam pipes In winding a continuous strip of sheet metal having chamfered edges into a helical seam pipe, the chamfered edges define an inside seam and an outside seam in the pipe. Initially, after forming the pipe, a tack weld is formed in the outside seam and then ...	12/06/1977
3991597	Method and device for adjusting forming rolls in a helical seam pipe mill In forming a metal plate or the like into a helical seam pipe, the plate is deformed by bending rolls each made up of individual forming rolls. The forming rolls are exposed to shearing forces if the plate varies its direction of travel toward the forming...	11/16/1976
3961741	Heat transfer tubes with internal extended surface Heat transfer tubes are provided internally with extended surfaces to improve heat transfer between a fluid within the tube and a fluid outside of and in contact with the tube. A flat sheet of metal is provided with extended surfaces which are welded to o...	06/08/1976
3942702	Corrugated tubing A method of producing a corrugated flexible tube wherein a corrugated profiled strip having multiple corrugations is wound in a helical path such that its edges overlap and then the overlapped edges are tight welded together, preferably by electrical resi...	03/09/1976

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Class 228/145 - To form helically seamed tube