Class 138/139 - Metal liner

Subclass of Class 138 - Pipes and tubular conduits
Definition: Device wherein at least one of the distinct layers is a
No. of patents: 90
Last issue date: 08/05/2008

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Number	Title	Issue Date
7407372	Progressing cavity pump or motor A progressing cavity pump or a motor includes, in one embodiment, an outer tube 12, an inner tube 14, and a plurality of apertures 16. A pair of annular seal glands 18 seal the stator material to the outer tube. The stator material is inj...	08/05/2008
7361835	Toneable conduit and method of preparing same The present invention is a toneable conduit that can transmit a signal and that can therefore be readily detected by toning equipment. In addition, the conduit of the invention can be readily coupled with other conduit to provide extended lengths of conduit. The ton...	04/22/2008
7316548	Stator for an eccentric screw pump or an eccentric worm motor operating on the Moineau principle The invention relates to a stator for an eccentric screw pump or an eccentric worm motor having a stator, including an outer tube that is provided with a lining of rubber or a rubber-like material and has a hollow space, in the shape of a double or multiple spiral, ...	01/08/2008
7267373	Connecting structure for a fluid transport hose On the inner surface of a rubber hose body 12, a laminated hard resin layer 14 is formed to constitute a barrier layer that is impermeable to fluids. A clamping connection is made to hose 10 by a clamping member 24, which clamps the hose ...	09/11/2007
7216556	Tubing for transporting air samples in an air monitoring system An air monitoring system includes a tubing having a metallic inner layer and an outer jacket to provide optimal transport of air samples. ...	05/15/2007
7192063	Metallic tubular hose having a rubber or resin hard material layer The present invention relates to a metallic tubular hose which suppresses disintegration in which the metallic tubular hose comprises a hose body having a longitudinal edge at one end thereof and a bellows metallic tube inner layer with the inner layer composed of a...	03/20/2007
7171988	Tubing for hydrostatic forming, hydrostatic forming apparatus, and hydrostatic forming method using the apparatus A tubing including an overlap portion formed by the first and second circumferential end portions overlapping and joined with each other, and a fluid leakage preventing member for preventing pressurized fluid from leaking from the tubing upon the tubing being subjec...	02/06/2007
7131827	Stator for an eccentric screw pump or an eccentric worm motor operating on the moineau principle The invention relates to a stator for an eccentric screw pump or an eccentric worm motor, including an outer tube that is provided with a lining of rubber or a rubber-like material and has a hollow space or cavity, in the shape of a double or multiple spiral, for ac...	11/07/2006
7114526	Composite hose with a corrugated metal tube A composite hose comprises a corrugated metal tube as barrier layer against permeation of conveyed fluid and a reinforcing layer which is formed by braiding a reinforcing wire member made of a metal wire. A braid density of the reinforcing layer is 55% or less. ...	10/03/2006
7108018	Reinforced flexible hose A reinforced flexible hose comprising as least a first inner extruded tubular layer and at least a second extruded tubular layer with a tubular reinforcement fabric provided between said first and second hoses. The two tubes are joined so as to form a homogeneous un...	09/19/2006
7104285	Hose with corrugated metal tube A hose with corrugated metal tube comprises a corrugated metal tube as innermost layer and outer layer in a radially outer side thereof including elastic layer and reinforced layer. The reinforced layer is braided with reinforcing filament members at a braid or wind...	09/12/2006
7086419	Composite hose with a corrugated metal tube A composite hose is provided with a corrugated metal tube as a barrier layer against permeation of conveyed fluid, and an elastic filler layer which is filled in valley gaps between corrugation hills on an outer peripheral side of the corrugated metal tube. The elas...	08/08/2006
7069954	Composite hose with a corrugated metal tube A composite hose is provided with a corrugated metal tube of an inner layer and rubber filler which is filled in valley gaps between corrugation hills on an outer peripheral side of the corrugated metal tube. A tubular hard resin layer is further provided as cover l...	07/04/2006
7021673	Hose with corrugated metal tube A hose having a corrugated metal tube as the innermost layer and an outer layer including an inner elastic layer, a reinforced layer and an outer elastic layer. A socket fitting is swaged onto the hose body at three axially spaced points. The corrugated metal tube i...	04/04/2006
6935379	Prefabricated insulation for HVAC ductwork and other fluid conduits An improved insulation and an improved method for preparing and installing sheets of insulation having a vapor-barrier jacket or “finish” to ductwork and other fluid conduits or other surfaces. Anchor tabs are provided on the insulation, as are also studs for an...	08/30/2005
6904939	Flexible tubular pipe for hydrocarbon transport with carcass consisting of an elongated element stapled with a band iron A flexible tubular pipe for hydrocarbon transport, comprising from inside to outside at least a carcass, an inner sheath, tensile armoring plies and an outer sheath, wherein the carcass is formed by winding of at least an anti-corrosive elongated metal element with ...	06/14/2005
6901968	Fluid conduit The present invention relates to a fluid conduit, and to a multi-conduit umbilical for use in the transportation of chemicals with small molecular size and shape e.g. methanol ethanol and other hydrocarbon fluids used in the oil industry. The conduit comprises a fle...	06/07/2005
6901698	Irrigation device and system The present invention is directed to an irrigation device and irrigation system. More specifically, the present invention is directed to a weep or tear type irrigation device and irrigation system. ...	06/07/2005
6887543	Thermal protection sheath and its fabrication method A heat-reflective protective sleeve includes a substrate (10) and a sheet of reflective material (20) fixed on the substrate (10). The substrate (10) is elastically deformable from a non-operating position and the sheet (20) is ple...	05/03/2005
6843278	Flexible duct with shrinkage-proof film The invention concerns a flexible duct (1) comprising from inside outwards a carcass (2) produced by a short-pitched metallic helical winding forming butt gaps (12), an overlapping layer (10) acting as a heat shield consisting of helicall...	01/18/2005
6838141	Hose A hose of a laminated structure which comprises a rubber layer composed of a rubber composition, and a laminate including a metal foil and a resin, the rubber composition including: (A) a rubber including at least one of an ethylen...	01/04/2005
6815026	Helically-wound duct A duct formed from at least one helically wound strip of flexible material and at least one stiffening element. Stiffening element has a ratio of radial height to axial length of greater than 1.0. The stiffening element may be substantially planar. ...	11/09/2004
6769452	Leak-free flexible conduit A leak-free flexible conduit and method of making the same is described. By attaching a flexible outer hose to a flexible inner hose without directly clamping the outer hose to the inner hose, the life of the inner hose is increased. Furthermore, the outer flexible ...	08/03/2004
6692804	High strength extruded tubular product and method for making said product Using a balanced flow path, multiple layers of extruded plastic are supplied to a chamber having independently rotating surfaces. Said rotating surfaces apply a shear force to at least the inner and outer layers of said extruded plastic to orient said mat...	02/17/2004
6689440	Metal tubing coated with multiple layers of polymeric materials A coated metal tubing arrangement comprises a metal tube. An inner layer of a first polymeric material is bonded to the tube to provide corrosion protection. The first polymeric material has a high crystallinity, a dampening factor of less than 0.05, and ...	02/10/2004
6631741	Metal-composite corrugated hoses and a process for manufacturing the same A metal-composite corrugated hose having a wall including a metal layer forming its innermost layer and a resin layer surrounding it. Its wall has in its corrugated portion a metal layer thickness (A) of at least 20 μm, but below 200 μm, and a resin lay...	10/14/2003
6589617	Metal tubing coated with multiple layers of polymeric materials A coated metal tubing arrangement comprises a metal tube. An inner layer of a first polymeric material is bonded to the tube to provide corrosion protection. The first polymeric material has a high crystallinity, a dampening factor of less than 0.05, and ...	07/08/2003
6550502	Composite tube comprising an inner casing A structure of a multilayer tube includes at least one layer made of a composite material (2-8) having reinforcing fibers embedded in a polymer matrix, and at least one sealing sheath (1) made of a low-permeability polymer material. The tube has a metal c...	04/22/2003
6502496	Armor system for flexible cables and conduits The invention provides an armor system for ballistic protection of a flexible conduit, the system comprising a plurality of protective tubular elements in axial alternating array with double-socket joint elements, the outer peripheral ends of the tubular ...	01/07/2003
6412521	Rigid line for a brake, fuel or hydraulic system in motor vehicles Processes and arrangements provide a rigid line for a brake, fuel or hydraulic system in motor vehicles, whose synthetic cladding layer is reinforced with fibers to thereby increase the strength and the resistance to wear and tear of the synthetic claddin...	07/02/2002
6338365	Flexible piping structure having a continuous metal inner tube A flexible piping structure has in combination, from the axis of the pipe towards the exterior, a cylindrical, metal inner sealing tube, a layer resistance to internal and external pressures and a sealing sheath made from extruded plastics material. In on...	01/15/2002
6220305	Coal tar enamel coated steel pipe and process for same Described is a preferred method for manufacturing a coal tar enamel-coated steel pipe, in which a primer coat of epoxy resin is applied to a preheated steel pipe, and coal tar enamel is applied to the primer coat prior to full curing of the latter. The re...	04/24/2001
6135159	Composite conduit for carrying fuel oil An elongate deformable conduit and method of fabrication thereof adapted for the subterranean conveying of petroleum products and petrochemicals has an inner copper tube to which is bonded an outer layer of flexible polyvinyl chloride up to about one-thir...	10/24/2000
6098667	Flexible piping structure having a continuous metal inner tube A flexible piping structure has in combination, from the axis of the pipe towards the exterior, a cylindrical, metal inner sealing tube, a layer resistant to internal and external pressures and a sealing sheath made from extruded plastics material. In one...	08/08/2000
6053213	Flexible pipe for great depths It is of the type comprising a corrugated and sealed internal metal tube (1), a pressure vault (2) wound at a short pitch and having an internal surface which faces the corrugations of the corrugated internal tube, an intermediate sheath, at least two gro...	04/25/2000
6041827	Multi-layered metallic pipe and method of coating the metallic pipe A multi-layered metallic pipe having resistances to the chipping of pebbles and splashing of muddy water while driving a vehicle and excellent corrosion resistances. The multi-layered metallic pipe is piped without scraping and does not need an insulator....	03/28/2000
5972450	Metal tubing coated with multiple layers of polymeric materials A coated metal tubing arrangement comprises a metal tube. An inner layer of a first polymeric material is bonded to the tube to provide corrosion protection. The first polymeric material has a high crystallinity, a dampening factor of less than 0.05, and ...	10/26/1999
5927344	Subsea flexible pipe A flexible pipe for subsea installation has a fluid impervious tube surrounded by a structure pipe. The structure pipe is a cylindrical monolithic member. It has at least two rows of slots extending along the length of the wall. The slots are evenly space...	07/27/1999
5869159	Cushioned pole cover and method of applying the cover A method and a kit for cushioning and covering a pole is disclosed. First and second sheets of cushioning material are wrapped around a pole, with the second sheet of cushioning material being cut to fit the height of the pole. A first cover sheet is appl...	02/09/1999
5868171	Composite conduit for carrying fuel oil An elongate deformable conduit and method of fabrication thereof adapted for the subterranean conveying of petroleum products and petrochemicals has an inner copper tube to which is bonded an outer layer of flexible polyvinyl chloride up to about one-thir...	02/09/1999

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Class 138/139 - Metal liner