Corrugated Patents (Class 138/121)
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Publication number: 20090242066Abstract: A flexible conduit for routing cable between a source and destination is provided herein. The flexible conduit may have a corrugated cover portion and a generally flat attachment portion for attaching the flexible conduit to an attachment surface or nearby structure. It is contemplated that the flexible conduit may flex in the lateral and/or vertical direction such that the flexible conduit may be intricately routed between the source and destination. It is also contemplated that the attachment portion may be directly attached (e.g., pressure sensitive adhesive, hooks and loops, etc.) to the attachment surface to allow ease of installation without the use of tools. It is also contemplated that the elongate hollow body of the conduit may exhibit a slit opening opposite the attachment portion of the conduit to facilitate non-destructive installation and removal of the cables. It is also contemplated that the attachment portion may be attached to the attachment surface with screws.Type: ApplicationFiled: March 28, 2008Publication date: October 1, 2009Inventor: James H. McKane
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Publication number: 20090229697Abstract: An integral hose anti-collapse rib comprises a unitary body having a first cantilevered portion curved in a first direction. This first cantilevered portion defines a first end. A second cantilevered portion is curved in a direction opposite the direction of the first cantilevered portion, in a direction facing the first cantilevered portion. The second cantilevered portion also defines a second end disposed at an opposite extent of the rib from the first end. The hose anti-collapse rib also comprises a locking mechanism that locks the first end of the rib to the second end of the rib, such that the first and second cantilevered portions together form a generally circular shape. Embodiments of locking mechanisms may include a button and orifice locking mechanism and/or a tab and channel locking mechanism. In a relaxed state in which the locking mechanism is not engaged, the rib preferably defines a non-circular, generally spiral shape.Type: ApplicationFiled: February 25, 2009Publication date: September 17, 2009Inventors: Douglas D. Schelhaas, Donald R. Gilbreath, Tim Saupe
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Patent number: 7562679Abstract: A filler pipe, wherein a flow path for a fluid is formed through multiple resin materials being extruded simultaneously and wherein a corrugated part is shaped through peaks and valleys disposed continuously, comprises an outer layer formed from a high density polyethylene, a barrier layer formed from EVOH with superior resistance to fuel permeation, and an inner layer, formed from high density polyethylene. The structure is such that d<L when the depth from the apex of the peak to the bottom of the valley is defined as d, and the distance from the apex of the peak to the barrier layer is defined as L.Type: GrantFiled: July 6, 2006Date of Patent: July 21, 2009Assignee: Toyoda Gosei Co., Ltd.Inventors: Zenichi Yasuda, Masanori Nojiri
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Patent number: 7562448Abstract: The present invention provides a method of preventing electrically induced fires in household gas tubing. The method involves coupling conductive wire and conductive appliance connectors to the gas tubing, wherein the conductive wire provides direct electrical contact between the appliance connectors affixed to the ends of the tubing. In the event that an electrical charge goes to ground via the gas tubing assembly (e.g., lightning strike or appliance short), damage to the gas tubing is prevented by the conductive wire and end connectors providing a low resistance electrical path that allows the current to pass over the gas tubing assembly without the gas tubing itself actually having to carrying the load. This reduces the risk of a rupture in the gas tubing from electrical insult, which could result in fire.Type: GrantFiled: July 18, 2005Date of Patent: July 21, 2009Inventor: Mark E. Goodson
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Patent number: 7559341Abstract: The invention concerns a flexible tube (1) comprising a corrugated pipe (2) around which are mounted a pressure resistant braid (9) of tubular shape made of an adapted material as well as an outer tubular mechanical protection (13). The invention is characterized in that it comprises a tubular antifriction braid (6) arranged between the corrugated pipe and the pressure resistant braid, said antifriction braid being made of an adapted material whereof the hardness and/or the friction coefficient are lower than those of the material used for making the pressure resistant braid and at least one tubular damping layer (12) arranged between the pressure resistant braid and the outer mechanical protection.Type: GrantFiled: November 30, 2005Date of Patent: July 14, 2009Assignee: Tubest Flexible SolutionsInventor: Eric Wintrebert
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Patent number: 7559342Abstract: A flexible hose includes a hose body and a plurality of pleats formed on an outer circumferential surface of the hose body by predetermined intervals to give flexibility to the flexible hose. Each of the plurality of pleats includes an entering portion formed to be inclined to the outer circumferential surface of the hose body, and a head portion formed vertical to the outer circumferential surface of the hose body to extend from the entering portion, to be in fluid communication with an inside of the hose body via the entering portion.Type: GrantFiled: December 11, 2007Date of Patent: July 14, 2009Assignee: Samsung Gwangju Electronics Co., Ltd.Inventor: Kyong-hui Jeon
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Patent number: 7556065Abstract: A metal bellow tube has sectional shapes of a ridge and a valley in a bellows-shaped tube wall of a metal bellows tube that are made to be V-shaped. As a result, a metal bellows tube with significantly improved bending fatigue resistance compared to conventional ones is provided. In addition, by this metal bellows tube and a tubular metal braid covering the outside of the tube, a flexible tube for a high-pressure fluid can be constituted. Consequently, a high-pressure fluid exceeding 20 MPa, particularly even a superhigh-pressure fluid of 70 MPa, can be transferred safely without transmitting the molecules of the fluid.Type: GrantFiled: September 4, 2003Date of Patent: July 7, 2009Assignee: Ork CorporationInventor: Kazuo Koizumi
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Publication number: 20090127853Abstract: A coupling for three-wall, corrugated pipe, the pipe including a corrugated wall having a plurality of primary corrugations, is disclosed. The coupling includes a first pipe section having disposed at one end a bell portion, the bell portion having a bell portion of corrugated wall and an outer wall; a second pipe section having disposed at one end a spigot portion, the spigot portion having a spigot portion of corrugated wall between an inner wall and an outer wall; and a gasket disposed in a groove extending around a circumference of the spigot portion and engaged between the bell portion of corrugated wall and the spigot portion of corrugated wall. A three-wall, corrugated pipe section, and method for assembling a plurality of three-wall, corrugated pipe sections, are also disclosed.Type: ApplicationFiled: November 17, 2008Publication date: May 21, 2009Inventors: Gerald S. Sutton, William V. Shaffer, James B. Goddard, John M. Kurdziel, David J. Kelley, Jeffrey J. Biesenberger
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Publication number: 20090126820Abstract: A corrugated tube assembly for use in connection with a plumbing fixture.Type: ApplicationFiled: January 26, 2009Publication date: May 21, 2009Inventors: Kurt Judson Thomas, Thomas C. Pinette
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Publication number: 20090126147Abstract: A portable-blower duct has a bendable portion whose inner peripheral surface is a cylindrical surface without any protrusions or recesses in a normal state or in an expanded state, that is, unless it is greatly curved. With this construction, no turbulence is generated in air passing through a tube, thereby making it possible to suppress pressure loss. Thus, the flow velocity of air guided through the duct is not reduced, thereby suppressing a deterioration in air blowing efficiency. Even when the tube is curved, the outer side of the curved portion is expanded, and the corresponding portion of the inner peripheral surface remains a smooth surface, thus making it possible to minimize the air pressure loss.Type: ApplicationFiled: January 27, 2009Publication date: May 21, 2009Applicant: HUSQVARNA ZENOAH CO. LTD.Inventors: Satoshi NAKAZAWA, Maki Yamazaki, Takeshi Saito
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Publication number: 20090114303Abstract: The present invention refers to a flexible conduit element for an exhaust system of a combustion engine vehicle, comprising a helically or annularly corrugated metal bellows member, an outer flexible member disposed around the bellows member and the resilient member biasing the flexible outer member towards the metal bellows member In order to improve the absorption of vibrations of a combustion engine, the outer flexible member comprises a reticulated structure.Type: ApplicationFiled: November 6, 2007Publication date: May 7, 2009Applicant: SJM CO., LTD.Inventor: Dae Hyun Kim
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Publication number: 20090114304Abstract: The formation of a resin layer, a metal layer and an insulating resin layer on an outer surface of a corrugated metal pipe for flowing a fluid provides a flexible pipe, whose corrugated metal pipe does not suffer from having apertures even with spark discharge by induced lightning.Type: ApplicationFiled: March 28, 2005Publication date: May 7, 2009Applicant: HITACHI METALS LTDInventors: Masahiro Mohri, Minoru Fujiyoshi, Fumitaka Satoh, Tamaki Hamaguchi, Tomoyuki Minami
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Patent number: 7523766Abstract: The present invention relates to a reinforced undersea unit pipe element (1) suitable for being laid empty at great depth. The element includes a tubular wall, having at least one external peripheral reinforcing element (6, 7) creating a plurality of localized zones on the outside surface of the wall, the radial distance (d1) between the outside surface of the pipe and the longitudinal axis (XX?) of the wall in the zones being greater than the outside radius (R) of the tubular wall portions lying between the successive zones in the longitudinal direction (XX?), two successive ones of the zones being spaced apart in the longitudinal direction (XX?) of the tubular wall by a distance (D) equal to ½ to 4 times the outside diameter (d) of the tubular wall portions, the successive zones preferably being spaced apart regularly.Type: GrantFiled: November 28, 2002Date of Patent: April 28, 2009Assignee: Saipem S.A.Inventors: Laurent Chenin, Francois Régis Pionetti, Alain Safakhah, Xavier Rocher
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Patent number: 7524409Abstract: Embodiments of the present invention employ complexly shaped, high-surface-area channels for separation and purification of molecules, including important biopolymers such as proteins, glycoproteins, polysaccharides, and other molecular components of living cells. The relatively large internal surface areas of the complexly shaped channels employed in embodiments of the present invention provide, in comparison to traditional, simply shaped separation channels, increased heat dissipation during electrokinetic separation, and a decreased tendency for bulk-solution flow. Heat dissipation prevents high temperatures that can denature proteins and that can induce thermal currents within the separation channel. Bulk-solution flow within a separation channel can overwhelm the generally linear, electrical-potential-induced migration of molecules that leads to efficient and well-resolved molecular separations.Type: GrantFiled: May 14, 2004Date of Patent: April 28, 2009Assignee: University of WashingtonInventors: Daniel T. Chiu, Jason S. Kuo, David S. W. Lim
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Patent number: 7516762Abstract: A flexible corrugated pipe, of a type comprising a plurality of overlapping material layers, comprises at least a coiled wire, and at least an electric cable, the coils or turns of said at least a wire and said at least an electric cable being arranged on a same plane, inside the wall of the pipe owing to the provision of the built-in electric cable, embedded in the thickness of the corrugated pipe, at a same position or level as the reinforcement metal coils, the outer corrugating configuration of the body of the tube is improved, thereby consequently improving the flexibility of the corrugated pipe.Type: GrantFiled: May 9, 2007Date of Patent: April 14, 2009Assignee: IVG Colbachini, S.p.A.Inventor: Guiseppe Aldinio Colbachini
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Patent number: 7506667Abstract: A flexible exhaust stack is suitable for use with a vehicle for which relative motion occurs between the cab of the vehicle and exhaust system components mounted to the vehicle frame. The exhaust stack includes a pipe mounted to the cab and having inlet and discharge ends. A collar is secured to an interior portion of the pipe between the inlet end and the discharge end. A flexible hose is at least partially disposed within the pipe, with a discharge end secured to the collar and an inlet end in fluid communication with the frame-mounted exhaust system components. The exhaust stack receives exhaust gases from the frame-mounted exhaust system components and discharges the exhaust gases from the discharge end of the pipe, while the flexible hose allows for relative motion between the cab and the exhaust system.Type: GrantFiled: February 27, 2008Date of Patent: March 24, 2009Assignee: PACCAR IncInventors: Jeremy Johnson, Chengappalli P. Gopalakrishnan
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Patent number: 7493918Abstract: The present invention relates to fluid conduit (1) suitable for use in the transportation of working fluids to a wellhead or the like from a topside location or the like. The fluid conduit (1) is suitable for use in a multi-conduit umbilical. The conduit comprises an inner flexible collapse resistant hose (2) surrounded by a hose liner (4), and at least one pair of helically contra-wound high tensile wires (6a, 6b). Each turn of each wire (6a, 6b) is in substantially close contact with adjacent turns thereof. A multi-conduit umbilical comprising a plurality of the fluid conduits bundled together and provided with an outer sheath is also described.Type: GrantFiled: September 24, 2004Date of Patent: February 24, 2009Assignee: Oceaneering International Services Ltd.Inventor: Fraser Hynd Thomson
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Patent number: 7490632Abstract: The present invention relates to a flexible hose, preferably a charge-air hose for automotive vehicles, comprising at least one corrugated portion and a substantially tubular portion which is arranged at least sectionwise within the corrugated portion. In order to facilitate the mounting of such hoses, the present invention is so conceived that the corrugated portion is formed integrally with the tubular portion, and that the tubular portion is introduced, from an extended position in which the corrugated and the tubular portion are arranged in succession, into the corrugated portion by turning said tubular portion outside in.Type: GrantFiled: July 25, 2005Date of Patent: February 17, 2009Assignee: Veritas AGInventor: Thomas Grebe
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Publication number: 20090032131Abstract: A flexible collapsible corrugated sewer hose has a collapsible and expandable corrugated section providing durability, a tight bend radius and a relatively small collapse ratio. An expansion of the corrugations permits convenient manipulation and installation of the sewer hose having a self supporting structure and crush resistance without helical reinforcement.Type: ApplicationFiled: August 28, 2008Publication date: February 5, 2009Inventor: E. Michael Boettner
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Patent number: 7484535Abstract: A pipe having an axially extending bore is defined by a pipe wall including a corrugated outer wall having axially adjacent annular outwardly-extending crests separated by valleys. The pipe wall also includes a non-linear outer layer having adjacent concave portions and convex portions. The concave portions are aligned with the corrugation crests of the outer wall so that the convex portion of the outer layer extends outwardly between at least two corrugation crests to provide improved resistance to deformation.Type: GrantFiled: March 14, 2005Date of Patent: February 3, 2009Assignee: Advanced Drainage Systems, Inc.Inventors: James B. Goddard, John Martin Kurdziel
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Patent number: 7478652Abstract: A fuel hose has multilayered construction and a flexible corrugated portion with corrugation bottom portions and corrugation peak portions. The fuel hose includes a rubber layer and a resin layer that is a laminated on an inner side of the rubber layer. The resin layer has fuel permeation resistance and serves as a barrier layer. The corrugated portion satisfies a condition of H/W?1.1 when H represents a height of the corrugation measured between an inside of the corrugation bottom portion and an inside of the corrugation peak portion thereof, and 2W represents an axial distance between an inside of the corrugation bottom portion and an inside of an adjacent corrugation bottom portion.Type: GrantFiled: March 22, 2007Date of Patent: January 20, 2009Assignee: Tokai Rubber Industries, Ltd.Inventors: Kazushige Sakazaki, Koji Hioki
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Patent number: 7472725Abstract: A heat-insulated conduit having at least one internal tube (1), a heat-insulating layer (2), an intermediate layer (3), a film (4) and a corrugated external tube (5).Type: GrantFiled: June 13, 2007Date of Patent: January 6, 2009Assignee: Brugg Rohr AG, HoldingInventors: Roberto Rudi, Robert Schneider, Roland Demuth
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Publication number: 20090000682Abstract: A corrugated tube is provided, which can easily bend a wiring harness in one direction and can make the wiring harness hardly bend in another direction crossing the one direction at right angles, wherein the wiring harness is made further hardly bend in the other direction, so that the slack of the wiring harness for use in supplying electric power to a slide door can be effectively prevented from occurring. The corrugated tube includes: dented grooves and projecting strips formed on an outer periphery of the corrugated tube and arranged alternately in a longitudinal direction of the corrugated tube; and a reinforcing rib formed projecting from an outer peripheral surface of the dented groove and extending beyond an outer peripheral surface of the projecting strip, the reinforcing rib being formed in the longitudinal direction of the corrugated tube.Type: ApplicationFiled: March 31, 2008Publication date: January 1, 2009Applicant: Yazaki CorporationInventors: Naomi Kisu, Masataka Nishijima
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Publication number: 20080308170Abstract: An air duct for fluidly connecting portions of an engine assembly has a first end portion and a second end portion. A bellows portion is disposed between the first end portion and the second end portion. At least one first convolution extends from the bellows portion of the air duct and has a first internal bend radius and a first straight length. At least one second convolution extends from the bellows portion of the air duct and has a second internal bend radius and a second straight length. The second convolution has at least one of the second bend radius being larger than the first bend radius and the second straight length being greater than the first straight length.Type: ApplicationFiled: June 15, 2007Publication date: December 18, 2008Applicant: Caterpillar Inc.Inventors: Allyn P. Bock, Domenic R. Albert
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Publication number: 20080295276Abstract: A flexible hose includes a hose body and a plurality of pleats formed on an outer circumferential surface of the hose body by predetermined intervals to give flexibility to the flexible hose. Each of the plurality of pleats includes an entering portion formed to be inclined to the outer circumferential surface of the hose body, and a head portion formed vertical to the outer circumferential surface of the hose body to extend from the entering portion, to be in fluid communication with an inside of the hose body via the entering portion.Type: ApplicationFiled: December 11, 2007Publication date: December 4, 2008Inventor: Kyong-hui Jeon
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Patent number: 7451784Abstract: A pipe having an axially extending bore is defined by a corrugated outer wall having alternating, axially-adjacent, annular crests and valleys. The wall of the pipe has a hole disposed in a valley which provides fluid communication between the bore and the outside. The pipe also has a cover which extends between and is attached to axially adjacent crests. The cover is disposed over the hole to prevent material in which the pipe may be disposed from obstructing the hole and permitting fluid flow through the hole.Type: GrantFiled: January 25, 2005Date of Patent: November 18, 2008Assignee: Advanced Drainage Systems, Inc.Inventor: James B. Goddard
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Publication number: 20080277015Abstract: A protector (10) has two half members (20, 40) forming a tubular shape upon being assembled. One half member (20) includes a pair of temporary fixing ribs (26A, 26B) projecting more than a contact edge (23) with the other half member (40) and standing up at the opposite sides of each of corrugated tubes (80A, 80B), each pair of temporary fixing ribs (26A, 26B) are shaped to be insertable into grooves (81A, 81B) of the corresponding corrugated tube (80A, 80B), and stand-up ends (27A, 27B) of the pair of temporary fixing ribs (26A, 26B) are bent to approach each other along the groove (81A, 81B) of the corrugated tube (80A, 80B).Type: ApplicationFiled: May 7, 2008Publication date: November 13, 2008Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Nobuyoshi Tanaka, Masato Ibaraki, Tsutomu Sakata, Toshitsugu Morii
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Publication number: 20080271805Abstract: A fluid conduit with layered and partial covering material thereon. The fluid conduit may be of many forms and types and attached thereto and configured thereon covering material, in partial form and a selected number of layers. The covering of fluid conduit/conductors resulting in the creation of a novel and very effective, in functionality, of a fluid conduit/conductive system, such as a septic pipe of smooth wall, of corrugated form, of any form of cross sectional configuration including circular, elliptical, rectangular, triangular or any other geometric shape any of which will and can provide for the flow of a fluid of forms such as septic flow fluid and the like. Included herein as a part of the invention is fluid conduits produced by the means and methods of this invention. Substantially, the fluid conduit system having incorporated therein and thereon the form and layers of covering created as a consequence of the means and method of configuring such conduit included as a feature of the invention.Type: ApplicationFiled: May 23, 2006Publication date: November 6, 2008Inventor: David W. Presby
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Publication number: 20080245434Abstract: A composite hose is constructed to have an outer peripheral portion and an inner peripheral portion. The outer peripheral portion includes an elastic layer and a reinforcing layer provided on an outer periphery of the elastic layer. The inner peripheral portion includes a corrugated metal tube which is provided with a corrugated portion formed with corrugation his and corrugation valleys. A distance between the reinforcing layer and tops of the corrugation hills of the corrugated metal tube is designed 0.27 mm or less.Type: ApplicationFiled: October 8, 2007Publication date: October 9, 2008Inventors: Motoshige Hibino, Yuji Takagi, Minoru Hiramatsu, Koji Uchino
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Publication number: 20080236163Abstract: To provide an assembly, comprising an exhaust gas turbocharger and an intercooler for an internal combustion engine and a hot-side charge-air line connecting the exhaust gas turbocharger to a charge-air inlet of the intercooler, which assembly allows the movements to be equalised between the exhaust gas turbocharger and the intercooler and is simple to produce and assemble, it is proposed that the hot-side charge-air line comprises a one-piece plastics material tube which is formed from a material containing polytetrafluoroethylene and/or modified polytetrafluoroethylene and has at least one flexible zone.Type: ApplicationFiled: February 22, 2008Publication date: October 2, 2008Inventors: Stefan Bock, Roland Schray, Thomas Rosch, Andreas Seyler
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Publication number: 20080223472Abstract: A flexible hose includes a bellows pipe wall and an air barrier. The bellows pipe wall includes peaks defined on an outer surface of the bellows pipe wall, valleys is adjacent a respective peak, and grooves defined on an inner surface of the bellows pipe wall. Each groove is under a respective peak. The air barrier is near each of the grooves to prevent air from entering the grooves.Type: ApplicationFiled: October 2, 2007Publication date: September 18, 2008Inventors: Kyong-hui Jeon, Hwa-gyu Song, Sung-cheol Lee
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Publication number: 20080210327Abstract: A pipe having an axially extending bore defined by a smooth inner wall fused to a corrugated outer wall is provided. The corrugated outer wall has axially adjacent, annular, outwardly-extending crests separated by valleys. The pipe further includes an outer layer fused to the outer wall, the outer layer having adjacent concave portions and convex portions, the concave portions being aligned with corrugation valleys of the outer wall so that each concave portion of the outer layer extends between at least two corrugation crests. A method of improving the resistance to deformation of a corrugated pipe having a smooth inner wall fused to an outer wall defined by annular crests and valleys is also provided.Type: ApplicationFiled: January 25, 2008Publication date: September 4, 2008Inventors: James B. Goddard, John M. Kurdziel
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Patent number: 7418980Abstract: The present invention relates to a vacuum cleaner hose manufactured by continuously spirally winding one row or two rows of band-shaped materials extruded with an electric wire inserted therein. The vacuum cleaner hose is formed by spirally winding and sticking a band-shaped material having protrusions connected to each other in a line. In one embodiment, the vacuum cleaner hose is formed from one row of the band-shaped material 2 having a plurality of the hollow protrusions 4 inserted with the electric wire 5 and at least one hollow protrusion 4a inserted with no electric wire 5 is formed into the hose 1. In another embodiment, the vacuum cleaner hose is formed from two rows of the band-shaped materials 2 in which the protrusions of only one row of the band-shaped materials 2 are inserted with the electric wire 5.Type: GrantFiled: December 15, 2005Date of Patent: September 2, 2008Inventor: Hyun Mi Lee
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Publication number: 20080178957Abstract: A corrugated tube assembly for use in connection with a plumbing fixture. The corrugated tube assembly includes a first tubular member and a second tubular member coaxially receiving the first tubular member. The first tubular member illustratively includes a cross-linked polymer, and the second tubular member illustratively includes a plurality of interconnected strands.Type: ApplicationFiled: January 31, 2007Publication date: July 31, 2008Applicant: MASCO CORPORATION OF INDIANAInventors: Kurt Judson Thomas, Thomas C. Pinette
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Patent number: 7398798Abstract: An air induction system wherein the outlet air assembly includes a sleeve-lined convolute duct. A sleeve liner is disposed within a convolute duct which spans the convolutes, wherein an attached end of the sleeve liner is attached to a non-convolute portion of the convolute duct, wherein a free end is freely slidable in the convolute duct, and wherein the free end of the sleeve liner and the attached end of the sleeve liner each serve as a sealing cuff whereby air flow is laminar therethrough irrespective of the convolutes.Type: GrantFiled: June 22, 2006Date of Patent: July 15, 2008Assignee: GM Global Technology Operations, Inc.Inventors: Terry W. Ostan, Jin Huang, Lei Li
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Publication number: 20080156388Abstract: The invention concerns a flexible tube (1) comprising a corrugated pipe (2) around which are mounted a pressure resistant braid (9) of tubular shape made of an adapted material as well as an outer tubular mechanical protection (13). The invention is characterized in that it comprises a tubular antifriction braid (6) arranged between the corrugated pipe and the pressure resistant braid, said antifriction braid being made of an adapted material whereof the hardness and/or the friction coefficient are lower than those of the material used for making the pressure resistant braid and at least one tubular damping layer (12) arranged between the pressure resistant braid and the outer mechanical protection.Type: ApplicationFiled: November 30, 2005Publication date: July 3, 2008Applicant: TUBEST FLEXIBLE SOLUTIONSInventor: Eric Wintrebert
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Publication number: 20080156389Abstract: A fuel hose for a resin fuel tank has a triple layer structure including a barrier layer made of an alloy material consisting primarily of EVOH and modified HDPE, and a pair of welding layers made of HDPE and formed on an inner peripheral surface and an outer peripheral surface of the barrier layer, respectively. An opening portion of the fuel hose at one end is configured in the form of an increased diameter portion and also in the form of a thick-walled portion. The increased diameter portion (or the thick-walled portion) is formed by reducing the speed of movement of dies when a hose base body is extruded into an increased diameter portion of a die surface of the dies during extrusion.Type: ApplicationFiled: December 27, 2007Publication date: July 3, 2008Applicant: TOKAI RUBBER INDUSTRIES, LTD.Inventor: Kazutaka KATAYAMA
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Patent number: 7367364Abstract: A tubing assembly including a conductive corrugated tubing including convolutions of peaks and valleys and a polymer jacket disposed along a length of said corrugated tubing, the polymer jacket including a fire retardant.Type: GrantFiled: May 12, 2006Date of Patent: May 6, 2008Assignee: Omega Flex, Inc.Inventors: Dean W. Rivest, Steven A. Treichel
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Patent number: 7350826Abstract: A conduit assembly, such as an electrical conduit assembly, includes a flexible convoluted tube having a non-conductive fluoropolymer interior and a conductive carbon exterior that decreases the electrical resistance of the tube. A fitting is secured to an end of the flexible convoluted tube. The fitting includes a nipple having a profiled tubular portion received into the end of the flexible convoluted tube and a socket secured to the fitting so as trap the end of the flexible convoluted tube between the nipple and the socket. At least one of the nipple and the socket are made from a metal treated to decrease the electrical resistance of the fitting.Type: GrantFiled: December 15, 2004Date of Patent: April 1, 2008Assignee: Eaton CorporationInventors: Christopher Thomas Cantrell, Lee Andrew Fausneaucht
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Publication number: 20080053552Abstract: A rubber vacuum hose, including a rubber middle section that includes an inner layer and an outer layer, but that lacks a support wire. The rubber middle section preferably is able to withstand temperatures of at least two hundred degrees Fahrenheit. The hose also includes two ends attached to either side of the middle section. At least one of the two ends is capable of adapting removably to a vacuum cleaning tool. Preferably, the rubber middle section is flexible enough to be tied into a knot without damage. In a preferred embodiment, the middle section is composed of ethylene propylene, ethylene propylene diene methylene terpolymer, or a mixture thereof suitable to withstand high negative pressure.Type: ApplicationFiled: September 1, 2006Publication date: March 6, 2008Inventor: Jeffrey R. Shope
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Patent number: 7334609Abstract: A flexible tubular device that includes a metal wall in which are formed corrugated convolutions that define corrugated outside and inside surfaces of the device. The convolutions are perpendicular to a longitudinal axis of the device, and each convolution has oppositely-disposed rounded top and bottom portions. The outside surface of the device has first and second sections with change positions therebetween. Each first section extends from one of the change positions to another via one of the top portions. Each second section extends from one of the change positions to another via one of the bottom portions. The length of each first section is at least 10% longer than the length of each second section. The outside surface has a curvature that is numerically smaller at the top portions than at the bottom portions, and changes sign only once at each change position.Type: GrantFiled: November 17, 2003Date of Patent: February 26, 2008Assignee: Norsk Hydro ASAInventors: Henry Petersen, Soren B. Olsen, Karl Brian Nielsen
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Publication number: 20080040989Abstract: A pipe construction kit for a sewer pipeline comprises several pipes made of plastic, which exhibit a circular cross-section. Between in each case two pipes there is to be arranged a shaft base body made of plastic, exhibiting a central connection section. The connection section exhibits a foot having a supporting surface and, diametrically thereto, a connection element for a shaft. On both sides of the connection section there are formed pipe sections for connection with the pipes. The diameter d of the shaft is significantly smaller than the diameter D of the shaft base body.Type: ApplicationFiled: February 25, 2005Publication date: February 21, 2008Inventor: Ralph Peter Hegler
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Publication number: 20080029178Abstract: A hose assembly includes a tubular inner core, a high-temperature thermal insulator disposed about the inner core and in substantially continuous contact therewith, a sealing layer substantially surrounding the thermal insulator, and an outer reinforcing layer. The insulator may be a refractory paper tape braided or helically wrapped about the inner core, and may be multiple layers thick. The sealing layer, which may be a polymeric fluorocarbon tape, substantially surrounds the thermal insulator and protects the thermal insulator from chemical degradation. The outer reinforcing and sealing layer may be integrated. Alternatively, the outer reinforcing layer may be applied about the sealing layer, for example via braiding. A coupling may be attached at one end of the hose assembly to connect the hose assembly to a fluid system.Type: ApplicationFiled: August 1, 2006Publication date: February 7, 2008Inventor: Rob Bentley
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Publication number: 20080023093Abstract: A method of manufacturing a cured, non-reinforced hose exhibiting one or more desirable configuration features molded onto the outer surface of the hose; and a cured, non-reinforced hose exhibiting such desirable configuration features molded on the outer surface thereof, manufactured in accordance with such method are described.Type: ApplicationFiled: July 27, 2006Publication date: January 31, 2008Inventor: John Mobley
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Patent number: 7322379Abstract: A flexible kink-resistant hose configuration includes concentric tubes with longitudinal ribs.Type: GrantFiled: February 7, 2005Date of Patent: January 29, 2008Inventor: Daniel C. Evans
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Patent number: 7314066Abstract: An air distributor for use in heap or dump leaching systems is disclosed. The air distributor includes an air pipe having a series of holes for releasing air from the pipe and one or more protective members spaced outwardly of the air holes to shield the air holes.Type: GrantFiled: May 19, 2004Date of Patent: January 1, 2008Assignee: BHP Billiton Innovation Pty Ltd.Inventors: Danny Ignacio Castillo, Elliott Paul Smithson
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Publication number: 20070295422Abstract: An air induction system wherein the outlet air assembly includes a sleeve-lined convolute duct. A sleeve liner is disposed within a convolute duct which spans the convolutes, wherein an attached end of the sleeve liner is attached to a non-convolute portion of the convolute duct, wherein a free end is freely slidable in the convolute duct, and wherein the free end of the sleeve liner and the attached end of the sleeve liner each serve as a sealing cuff whereby air flow is laminar therethrough irrespective of the convolutes.Type: ApplicationFiled: June 22, 2006Publication date: December 27, 2007Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Terry W. Ostan, Jin Huang, Lei Li
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Publication number: 20070289654Abstract: A heat-insulated conduit having at least one internal tube (1), a heat-insulating layer (2), an intermediate layer (3), a film (4) and a corrugated external tube (5).Type: ApplicationFiled: June 13, 2007Publication date: December 20, 2007Inventors: Roberto Rudi, Robert Schneider, Roland Demuth
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Publication number: 20070257399Abstract: An apparatus and method for forming one or more grooves in a hose is disclosed. The groove forming device is comprised of a circular guide tube through which the hose is driven. The guide tube is rotated by a drive. The groove forming device is mounted at the exit end of the guide tube are rotated about the hose as the grooves are formed in the hose cover. The grooves of the hose are formed by at least one roller mounted on a chuck.Type: ApplicationFiled: August 7, 2006Publication date: November 8, 2007Inventors: Jeremy Jay Lidgett, Andrew James Speidel
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Patent number: RE39968Abstract: The present invention relates to a polytetrafluoroethylene (PTFE) tube, and more particularly to a PTFE tube for a flexible hose. In particular the invention relates to a PTFE tube having a smooth bore for use in the production of a lined hose assembly farther comprising hose braids, external hose protection and end fittings. The PTFE tube comprises external roots and peaks, which tube is obtainable from a non-convoluted tube having an original wall thickness W0 and an internal diameter ID by a process in which a region of the tube is thinned to provide external convolutions with a root wall thickness W1 characterised in that the convoluted PFTE tube has an improved resistance, of greater than 7.6%, to permeation by comparison with the non-convoluted tube, the comparison being made between tubes of (i) equal nominal bore ID; and (ii) equal weight of PTFE per unit length.Type: GrantFiled: December 24, 1999Date of Patent: January 1, 2008Inventor: Andrew John Whitworth