Class 138/143 - Metal

Subclass of Class 138 - Pipes and tubular conduits
Definition: Device wherein at least one of the contacting layers is
No. of patents: 360
Last issue date: 01/10/2012

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Number	Title	Issue Date
8091588	Metallic tubular structure A metallic tubular structure having an inner surface providing a passage for conveying fluid or vapor, an outer surface, a multi-layer, strength-enhanced first end segment, a multi-layer, strength-enhanced second end segment, and a flexible segment intermediate the ...	01/10/2012
7766052	Conduit pipe for conveying media A conduit pipe for conveying media, having a core pipe made of a copper alloy and a jacketing made of a plastic material from the group of the polyolefins having functional groups. The ratio between the thickness of the jacketing wall and the thickness of the core p...	08/03/2010
7475705	Manufacturing method for multi-material tube structures The present invention provides an improved tubular structure which uses the properties of different materials, such as stiffness, strength, and density are exploited in a manner which combines the most attractive characteristics of existing metal and composite tubes...	01/13/2009
7434599	Hose and method of producing the same A hose and a method of producing the same. The hose includes a tubular resin inner layer, a metal plating layer formed on an outer peripheral surface of the resin inner layer, and a resin outer layer formed on an outer peripheral surface of the metal plating layer, ...	10/14/2008
7431054	Breathing air hose and method of making same A method of manufacturing a wire-reinforced flexible rubber hose that is particularly suitable for use in breathing air applications. The method includes positioning a section of wire-reinforced tubing on a forming mandrel and then positioning a sleeve of uncured ru...	10/07/2008
7393597	Welded joint made of an austenitic steel A weld joint having a base material and a weld metal both of an austenitic steel, wherein the weld metal has a chemical composition, in mass %, that C: 0.04% or less, Si: 1.0% or less, Mn: 3% or less, P: 0.02% or less, S: 0.005% or less, Cr: 15 to 25%, Ni: 30% or mo...	07/01/2008
7381454	Tubular product A tubular product has a tubular base layer, a tubular innermost layer made of plastic by continuous extrusion, and a tubular tie layer of foamed plastic between and adhered to the base layer and the innermost layer. The tie layer is made of melt processable adhesion...	06/03/2008
7367389	Tubing expansion There are disclosed methods and apparatus for expanding tubing downhole. In one embodiment, there is disclosed a method of expanding downhole tubing such as a liner (10), the method comprising the steps of locating the liner (10) in a borehole (...	05/06/2008
7361384	Corrosion protection system for transport pipe An apparatus and method for coating pipelines with a hot melt adhesive coating and a tape. The coating may comprise a copolymer of an alkyl substituted hydrocarbon polymer in combination with a diene polymer and the tape to overly the coating may comprise a polymeri...	04/22/2008
7357968	Reinforced, high pressure, low permeation multilayer hose A reinforced, high pressure hose is disclosed for use in the transport of high pressure fluids. The hose includes a multilayered inner tube capable of prolonged exposure to fluids such as those containing hydrocarbons, and a reinforcement layer overlaying the inner ...	04/15/2008
7354354	Article comprising a fine-grained metallic material and a polymeric material Lightweight articles comprising a polymeric material at least partially coated with a fine-grained metallic material are disclosed. The fine-grained metallic material has an average grain size of 2 nm to 5,000 nm, a thickness between 25 micron and 5 cm, and a hardne...	04/08/2008
7347225	Highly flexible multistructure tube A multi-structure pipe intended to transport a fluid, used in particular in oil production, including a first hollow and closed tubular structure having a set of substantially circumferential slits, each slit extending on an arc of more than 180° and defining a ten...	03/25/2008
7341686	Device for arresting the propagation of a buckle in a double-walled pipe Device for arresting the propagation of a buckle in a double walled pipe. The device comprising an outer pipe wall having a defined external diameter and placed around an inner pipe wall, defining an annular space between the said outer and inner walls; provi...	03/11/2008
7331253	Device for carrying and fastening a robot A device for carrying and fastening a robot (4), in particular a delta robot, is designed in a gallows shape. It has a foot (1), a column (2) adjoining the foot (1), and at least one cantilever arm (3), fastened to this column (...	02/19/2008
7314067	Design and manufacturing method for multi-material tube structures The present invention provides an improved tubular structure which uses the properties of different materials, such as stiffness, strength, and density are exploited in a manner which combines the most attractive characteristics of existing metal and composite tubes...	01/01/2008
7308911	Electronically detectable high-pressure hose and method of determining the location of the hose A hose is provided having at least one layer defining a tubular body with a length and an electrically conductive lead joined to the tubular body and extending along the length of the tubular body. The electrically conductive lead is adapted to receive an electrical...	12/18/2007
7290586	Bicontinuous composites A ceramic foam having pores in the range of 20 to 800 microns and 10 to 30 % of theoretical density is placed in a preheated mould and molten metal or plastics is drawn in to form a bicomposite structure. ...	11/06/2007
7288303	Structures of brittle materials and metals A structure 26 of brittle material and metal has brittle materials 24, 25 and a plate-shaped metal piece 21. The plate-shaped metal piece 21 has a clamped portion 22 pressed and clamped with the brittle material and a non-clamped p...	10/30/2007
7278460	Ceramic casting core and method A ceramic core for use in casting an article such as for example an airfoil, wherein the ceramic core has a pocket located at or near a region of the core that is otherwise associated with occurrence of a localized casting defect in the cast article. A covering is d...	10/09/2007
7275521	Joint structure of diverging branch pipe in fuel rail for internal combustion engine, diverging branch pipe and manufacture method of its diverging branch pipe A joint structure connects a diverging branch pipe to a fuel rail for an internal combustion engine. The fuel rail is stainless steel or steel with rust prevention processing on at least the inner face. The diverging branch pipe is a double pipe with inner and outer...	10/02/2007
7263975	Plastic coated metal fuel rail An improved fuel rail for delivering fuel to a fuel injector for an internal combustion engine is provided that reduces the weight of the fuel injection system, greatly reduces manufacturing costs by eliminating expensive manufacturing methods, such as brazing, high...	09/04/2007
7261154	Conformable apparatus in a drill string An apparatus in a drill string comprises an internally upset drill pipe. The drill pipe comprises a first end, a second end, and an elongate tube intermediate the first and second ends. The elongate tube and the ends comprising a continuous an inside surface with a ...	08/28/2007
7255134	Carbon black-containing crosslinked polyethylene pipe having resistance to chlorine and hypochlorous acid Pipe or tubing of crosslinked polyethylene (“PEX”) containing less than 2% by wt. carbon black provides improved resistance to oxidizing agents such as chlorine and hypochlorous acid in water. The pipe may be further protected with a thin tubular core (inner lay...	08/14/2007
7252142	Annular isolators for expandable tubulars in wellbores The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the...	08/07/2007
7244469	Method of zinc plating and powder coating residential gas meter set assemblies The present invention is a method for zinc plating a meter set assembly used in gas delivery applications, wherein a zinc plating is applied to a steel substrate formed in the configuration of a meter bar. Once the zinc plating is applied through electrodeposition, ...	07/17/2007
7238434	Welded structure having improved resistance to stress corrosion cracking This invention relates to a welded line pipe structure for transporting corrosive petroleum or natural gas. It is constituted by martensitic stainless steel pipes containing 8–16% Cr and at most 0.05% C. By suitably controlling the welding conditions at the time o...	07/03/2007
7234410	Buoyancy control systems for tubes A buoyancy control system for controlling the buoyancy of a tube may includes generally tubular length of buoyancy control material having a selected buoyancy characteristic. The length of buoyancy control material may be attached to a section of the length of the t...	06/26/2007
7234506	Ceramic casting core and method A ceramic core for use in casting an article such as for example an airfoil, wherein the ceramic core has a pocket located at or near a region of the core that is otherwise associated with occurrence of a localized casting defect in the cast article. A covering is d...	06/26/2007
7234222	Methods and apparatus for optimizing the delivery of a set of gases in a plasma processing system A method for configuring a gas distribution channel, the gas distribution channel being configured for introducing a plasma source gas into a plasma processing chamber of a plasma processing system is disclosed. The method includes providing a metal conduit, providi...	06/26/2007
7222387	Windshield wiper system having tubular member This invention relates to windshield wiper system and method which utilizes a flexible drive arm for withstanding bending loads applied to a wiper. The drive arm may be made of a pull-molded composite material having a relatively low modulus of elasticity and a rela...	05/29/2007
7222645	Duct insulation having condensate wicking An insulated duct-wrap insulating product for an air duct that incorporates a wicking media to transport condensed water on the duct surface to be evaporated into the atmosphere. A wicking fabric, or fibrous media, incorporated as part of the insulating duct wrap is...	05/29/2007
7223456	Flexible laminated plastic pipe having a chlorinated poly(vinyl chloride) hollow core A multi-layered pipe of arbitrary length and cross-section is produced by co-extrusion of a segmented thermoplastic copolyester elastomer (COPE) outer body over the exterior surface of an annular tubular core of CPVC/PVC having a wall thickness, measured in the radi...	05/29/2007
7219699	Resin-coated steel pipe excellent in mechanical strength such as sliding property A resin-coated steel pipe is provided having excellent mechanical strength and sliding properties. A double coated structure is formed that extends in the pipe's axial direction and has substantially the same cross section. The structure has a thin steel pipe. Attac...	05/22/2007
7216706	Annular isolators for tubulars in wellbores The present disclosure addresses apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. A first deployable annular isolator is carried on tubing as it is positioned in a borehole. An annular isolator forming mate...	05/15/2007
7207354	Design and manufacturing method for multi-material tube structures The present invention provides an improved tubular structure which uses the properties of different materials, such as stiffness, strength, and density are exploited in a manner which combines the most attractive characteristics of existing metal and composite tubes...	04/24/2007
7204234	High-pressure fuel injection pipe A high-pressure fuel injection pipe, which has an outside diameter (φ) of 6.35 mm, an inside diameter (φ) of 4.35 to 2.95 mm, and a wall thickness (t)of about 1.0 to 1.7 mm, can serve as a high-pressure fuel injection pipe for in-cylinder injection type gasoline e...	04/17/2007
7178557	CPVC drain waste and vent fittings A drain, waste and vent (“DWV”) fitting is made from chlorinated polyvinyl chloride. ...	02/20/2007
7171935	Engine cylinder liner construction An engine cylinder liner construction in which a cylinder liner that is cast into a cylinder block has a tubular portion and a number of spines integrally formed on an outer surface of the tubular portion, the engine cylinder liner construction includes a chamfered ...	02/06/2007
7171981	Flow control device and system A flow control valve has a ball and an annular seat providing a positive stop for automatically preventing flow through the valve when a line downstream has been broken. The flow control valve is useful for interior applications in which seepage through the valve wo...	02/06/2007
7172027	Expanding tubing A method of expanding tubing downhole comprises providing a section of expandable tubing of a first diameter, and axially compressing the tubing to induce buckling, such that the buckled portion describes a larger second diameter. The resulting diametric expansion m...	02/06/2007

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Class 138/143 - Metal