Corrugated Patents (Class 285/903)
  • Patent number: 10340647
    Abstract: Methods and systems for assembling customizable solderless cables for direct current (DC) transmission of electricity to an electronic device. The systems and methods utilize shielded co-axial cable defining first and second opposed ends which may be cut to a desired length as selected by the user. Connectors, which may have a conventional 2.1 mm×5.5 mm DC plug design, include a barrel portion defining a threaded axial passageway. In use, the threaded passageway of the plug is twisted upon a respective end of the cable such that the end of the cable becomes threadedly seated thereinto and in electrical contact with the plug to form two dedicated electrical connections. A respective other plug is mounted on the other respective end of the cable in the same manner to thus define the customizable cable. A single length of cable or a plurality of wire segments and plugs may be sold as a pre-packaged unit for use in making a plurality of customizable DC cables.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: July 2, 2019
    Assignee: TRISIMIAN, LLC
    Inventors: Stephen G. Howard, Osman M. Ahsen
  • Patent number: 10295181
    Abstract: An exhaust connection structure is constructed to connect a combustion apparatus and an exhaust tube having projections and recesses in an outer surface. The exhaust connection structure has a sealing member arranged on an outer circumferential surface of the exhaust tube and an exhaust joint arranged to sandwich the sealing member between the exhaust joint and the outer circumferential surface of the exhaust tube. The exhaust joint includes an engagement member and the engagement member has an annular portion and an engaging portion bent toward an inner circumference of the annular portion. The engaging portion is engaged with the projections and recesses in the exhaust tube.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: May 21, 2019
    Assignees: NORITZ CORPORATION, TOKYO GAS LIVING ENGINEERING CO., LTD., Mirai Industry Co., Ltd.
    Inventors: Masaki Sugatani, Takanori Nagano, Hironao Matsunaga, Takahide Hasegawa, Kiyomi Kanamoto, Yasuhide Satoh, Shohei Matsuda
  • Patent number: 10281071
    Abstract: One aspect of the invention provides a bushing including: a plurality of rigid members defining one or more internal ribs including a first internal rib adapted and configured to engage a corrugation valley of corrugated tubing; and one or more elastic members adapted and configured to: hold the plurality of rigid members in substantially annular configuration; allow the plurality of rigid members to expand to allow a corrugation peak to pass under the first internal rib; and hold the plurality of rigid members against the corrugated tubing so that the first internal rib lies within a corrugation valley. Another aspect of the invention provides a fitting including: a body member defining a sleeve portion; and a bushing as described herein received within the sleeve portion of the body member.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: May 7, 2019
    Assignee: Titeflex Corporation
    Inventor: Jordan Strunk
  • Patent number: 10024044
    Abstract: A securing device is disclosed having a flange mountable on a suction-providing source, and having pipe members that detachably receive a corrugated pipe such as a drain tile. A major or outer pipe is concentrically and integrally joined to, and extends perpendicularly from the flange. The outer pipe includes a rod receiving slot extending circumferentially and radially through a predetermined portion of the outer pipe. A minor or inner pipe is concentrically and integrally joined to, and extends perpendicularly from the flange such that the inner pipe is concentrically disposed inside the outer pipe. A latch is mounted on the outer pipe and is and is movable between a latched position and a fully unlatched position. A securing rod is pivotally connected to the outer pipe and is operatively associated with the latch subassembly so as to be movable from a secured position to a released position.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: July 17, 2018
    Inventor: Mark Fisher
  • Patent number: 9651177
    Abstract: A coupling connection for corrugated pipes includes a coupling element, a support ring which is attachable in a positive fit against an inner wall face of the corrugated pipe, a first annular element which is axially fixable on a circumferential face of the corrugated pipe, a portion of the corrugated pipe being enclosed between the support ring and the first annular element and being fixable axially immovably, and an annular sealing chamber, enclosed circumferentially in a transition region between the support ring and the corrugated pipe, receiving a sealing element, on which a deformation force acts in a functional position which is fixable using a fixing element, including a second annular element, which circumferentially encloses the coupling element and is circumferentially attachable and movable in translation with respect thereto, the first annular element and the second annular element being arranged mutually coaxially.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: May 16, 2017
    Assignee: BRUGG ROHR AG HOLDING
    Inventors: Helga Nielinger, Marc Post, Joern Homann
  • Patent number: 9140392
    Abstract: A fitting for use with metal tubing includes an adaptor, the adaptor having a longitudinal passage having a longitudinal axis for fluid flow; a body for receiving the tubing, the body positioned opposite the adaptor and aligned with the longitudinal axis; a metal sealing member positioned between the adaptor and the body; a nut positioned opposite the body; a jacket lock ring positioned radially inwardly of a portion of the nut, the jacket lock ring for making a mechanical connection with an outer jacket of the tubing; and at least one fastener coupling the nut, body and adapter.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: September 22, 2015
    Assignee: OMEGA FLEX, INC.
    Inventor: Dean W. Rivest
  • Patent number: 8997794
    Abstract: The invention relates to a vibration absorbing pipe for a refrigeration compressor including: a corrugated pipe; a first connection pipe having concavo and convex portions; a wire braided net adapted to be fitted to the outer peripheral surfaces of the corrugated pipe and the first connection pipe; and a first compression ring having concavo and convex portions formed on the inner peripheral surface thereof in such a manner as to be compressed against the front end periphery of the wire braided net located just on the top of the first connection pipe, wherein the first connection pipe has an adjusting groove formed on one side outer peripheral surface thereof, so that through the width adjustment of the adjusting groove, a thickness of one side bonding portion of the first connection pipe is the same as a thickness of one side bonding portion of the corrugated pipe.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: April 7, 2015
    Inventor: Hyun-Joong Kwon
  • Patent number: 8967674
    Abstract: A rotationally molded large-diameter pipe fitting, the wall structure of which is characterized as having a generally smooth interior surface and an exterior surface that is defined by a plurality of axially-spaced circumferentially extending ribs which are monolithically formed and homogeneous with the smooth interior surface of the fitting. The fitting is seamless and modularly designed with integral coupling elements at each terminal end, and with a ribbed wall structure profile capable of withstanding the loads typically found in buried applications with watertight performance requirements, where such ribbed wall structure meets the following dimensions and dimensional ratios: Rib Sidewall Angle (95-105 degrees); Bottom/Top Rib Thickness Ratio (1.80-2.80); Pitch/Rib Height Ratio (1.50-1.95); Rib Height/Fitting Diameter Ratio (0.04-0.09); and Avg. Rib Thickness/Rib Height Ratio (0.28-0.40).
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: March 3, 2015
    Assignee: Prinsco, Inc.
    Inventors: Carl R. Douglass, III, Joseph D. Larkins
  • Patent number: 8967676
    Abstract: A coupler for coupling adjacent end portions of corrugated plastic pipe includes first and second arcuate members that cooperate with each other to surround and interfit with the corrugations of the plastic pipe. A stop member on one of the members enables the other member to be properly positioned over the other member when forming the coupler. Circumferentially aligned and spaced-apart attachment members resist relative movement of the two coupling members when backfilling the coupler and the pipes coupled by the coupler.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: March 3, 2015
    Assignee: Lane Enterprises, Inc.
    Inventor: Mark C. Dick
  • Patent number: 8944474
    Abstract: A holder includes a first cover that covers a part of a corrugated tube in a radial direction of the corrugated tube, and a second cover engaged with the first cover and that covers a remaining part of the corrugated tube in the radial direction. A first retaining portion is formed on the first cover and is engaged in a groove on a bellows-shaped outer face of the corrugated tube. A second retaining portion is formed on the second cover and is engaged in the groove on the bellows-shaped outer face of the corrugated tube. The first cover includes a base portion and a pair of side wall portions extended vertically respectively from both ends of the base portion. The first retaining portion includes a first retaining piece which continuously extends from one of the side wall portions to the base portion and a second retaining piece which continuously extends from the other of the side wall portions to the base portion.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: February 3, 2015
    Assignee: Yazaki Corporation
    Inventors: Yasuyoshi Serizawa, Hiroyuki Sasaki, Kouichi Igarashi, Kenji Ito
  • Patent number: 8888139
    Abstract: A pressure tight, high pressure metal hose fitting is provided for a corrugated metal hose formed from metal tube having the fitting crimped permanently to the end of the hose. The fitting includes a first end with a stem which has threading to be coupled to an appropriate fitting surface. The fitting also has a second end adapted to be received within the hose. A sealing gasket is disposed on the second end of the fitting. A clamshell element is disposed above and about the fitting and the hose. The fitting includes projections which are adapted to be received in the clamshell assembly. A crimping ferrule is placed above and about the clamshell and is crimped to compress the clamshell about the fitting and hose and causes the sealing gasket to form a pressure tight seal.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: November 18, 2014
    Assignee: American BOA Incorporated
    Inventor: William Hunter
  • Patent number: 8870232
    Abstract: The disclosure includes the combination of a flexible rubber tube with annular corrugations and a coupling device for connecting the tube to a fitting. The device includes a latch secured to an end of the tube and a catch associated with the fitting. When the latch is engaged with the catch, the device forces the specially shaped flat annular side wall of the forward most corrugation into surface-to-surface contact with an annular end face of the fitting.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: October 28, 2014
    Assignee: Crushproof Tubing Company
    Inventors: Vance M. Kramer, Jr., Jonathan O. Rodebaugh
  • Patent number: 8851527
    Abstract: A fitting for use with corrugated tubing, the fitting comprising: a nut having a passage therethrough for receiving the tubing, the tubing being corrugated tubing having a series of peaks and valleys; a plurality of retainers positioned forward of the nut, the retainers having a sealing surface for placement in a valley of the corrugated tubing; a body having an annular pocket formed circumferentially around the retainers, the body having a body sealing surface, wherein upon sealing, the tubing is compressed between the sealing surface and the body sealing surface; a spring positioned within a cavity in the retainers, the spring driving the retainers into the pocket when the fitting is not sealed.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: October 7, 2014
    Assignee: Omega Flex, Inc.
    Inventors: Steven A. Treichel, Mark A. Miller
  • Patent number: 8834761
    Abstract: A permanently lubricated film gasket for providing a fluid-tight seal between a corrugated pipe and a smooth annular section of an outer pipe or section when the corrugated pipe and the outer pipe or section are in a relative surrounded and surrounding relationship. A first portion of the gasket is shaped to fit within a groove or recess of the corrugated pipe. A second portion of the gasket extends from the first portion. The second portion is at least partially comprised of permanently lubricated film for facilitating in the connection of the pipes along a single direction.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: September 16, 2014
    Assignee: SpringSeal, Inc.
    Inventor: Mark Knapp
  • Patent number: 8820800
    Abstract: A coupling for multi-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 portion of the corrugated wall and an outer wall; a second pipe section having disposed at one end a spigot portion, the spigot portion having a portion of the corrugated wall between an inner wall and an outer wall; and a gasket engaged between the corrugated wall of the bell portion and the outer wall of the spigot portion. A multi-wall, corrugated pipe section, and method for assembling a plurality of multi-wall, corrugated pipe sections, are also disclosed.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: September 2, 2014
    Assignee: Advanced Drainage Systems, Inc.
    Inventors: Gerald S. Sutton, William V. Shaffer, James B. Goddard, John M. Kurdziel, David J. Kelley, Jeffrey J. Biesenberger
  • Patent number: 8820801
    Abstract: A coupling for multi-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 multi-wall, corrugated pipe section, and method for assembling a plurality of multi-wall, corrugated pipe sections, are also disclosed.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: September 2, 2014
    Assignee: Advanced Drainage System, Inc.
    Inventors: Gerald S. Sutton, William V. Shaffer, James B. Goddard, John M. Kurdziel, David J. Kelley, Jeffrey J. Biesenberger
  • Patent number: 8814223
    Abstract: The flexible pipe connected with the flexible pipe connecting structure according to an embodiment of the present invention, wherein the connecting structure includes a body part, and a connecting part configured to have a smaller thickness than a thickness of the body part, wherein the first end portion is inserted into and welded to the connecting part, wherein the ledge is a step part provided between the body part and the connecting part.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: August 26, 2014
    Assignee: Dong-A Flexible Metal Tubes Co., Ltd.
    Inventor: Jin Lim Choi
  • Patent number: 8801049
    Abstract: A coupler assembly for use with a pipe or piping sections comprising a unitary annular body, forming first and second cylindrical openings for surrounding a pipe or piping sections to facilitate forming a fluid-tight seal therein. The unitary annular body comprises a medial portion and first and second longitudinal portions integrally connected to opposite ends of the medial portion. Extending from the first and second longitudinal portions away from the medial portion are respective first and second locking arrangements for securing the coupler assembly to a pipe or piping sections.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: August 12, 2014
    Assignee: Springseal, Inc.
    Inventor: Mark Knapp
  • Patent number: 8689837
    Abstract: A downspout extension has a low-profile to direct rainwater away from a building. A transition adapter can be used to transition from a generally circular or square cross-section of a downspout to a low-profile cross-section of a corrugated duct of the extension. The extension can include internal supports to withstand being stepped on and can have a generally rectangular or trapezoidal cross-section with a longer width than height. The corrugated duct can also be comprised of integrated accordion corrugation sections and transverse non-collapsible ribs to give the corrugated duct extension greater flexibility. The extension can be connected to a downspout using a flexible elbow duct, a downspout connector, and a downspout adapter. The transition adapter of the extension can also be connected directly to a downspout.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: April 8, 2014
    Inventor: Jeffrey E. Smith
  • Patent number: 8678449
    Abstract: A pipe joint for plastic pipe includes a bell member and a spigot member. The bell member includes a tubular plastic body wall having a metal reinforcement ring. The spigot member, which is insertable into the bell member, includes a tubular plastic body wall having an internal surface and an external surface and a longitudinal axis and metal reinforcement encased within the tubular plastic body wall. A plurality of plastic ribs extend from the external surface of the tubular plastic body wall and form a gasket channel.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: March 25, 2014
    Assignee: Contech Engineered Solutions LLC
    Inventors: William Zepp, James C. Schluter, James Shade
  • Patent number: 8646813
    Abstract: An exemplary connector assembly includes an elongated body with an internal passage for a conduit or cables. A body aperture region with a body fastener aperture is set between two elongated slots. The body aperture region may radially bulge out from the body, and may alternatively or additionally include an aperture flange protruding from the body aperture region. A U-shaped connector clip includes two parallel teeth that are inserted in the two slots, and a clip body having a clip fastener aperture. A fastener is inserted through the fastener apertures, securing the connector clip to the body. A fastening clip secures the fastener to the connector clip and keeps the connector clip from falling back into the slots as the connector clip is being disengaged from the body. Each clip tooth includes an engaging end that is complementarily interfittable with grooves in the conduit, keeping the conduit in place.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: February 11, 2014
    Inventor: Sami Shemtov
  • Patent number: 8607827
    Abstract: A low profile downspout extension is formed in multiple segments including a flexible conduit, a splash block and an extension. The splash block transitions from a circular inlet into a low profile pentagon configuration with a central bead along the top surface of the low profile body portion to define an apex of the pentagon shape. The body portion is wider than the diameter of the circular inlet but has a height at the central bead that is more than half the diameter of the circular inlet. The body portion has ribbed side walls to strengthen the splash block without requiring internal reinforcement. The bottom surface of the splash block defines a flow path that extends generally linearly from the bottom of the inlet opening to the bottom of the pentagon-shaped outlet. An open configuration for the splash block provides an alternative above-ground splash pad structure for connecting to downspouts.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: December 17, 2013
    Assignee: Euramax International, Inc.
    Inventor: Robert Benjamin Bell
  • Patent number: 8602066
    Abstract: A low profile downspout extension is formed in multiple segments including a flexible conduit component, a splash block component and an extension component. An adapter is selectively connectable to the inlet portion of the flexible conduit component to allow mounting to a small downspout. The splash block component transitions from a circular inlet into a low profile rectangular configuration with an internal weir that prevents a back-flow of water into the circular portion. The low profile rectangular sections are formed with ribbed side walls and a crowned top surface to provide strength without requiring reinforcement. The flexible conduit portion includes a rectangular inlet, a circular outlet and a corrugated central portion that allows the selective orientation of the inlet relative to the outlet. The adapter includes a deflectable attachment tab that locks into an attachment rib on the inlet portion of the flexible conduit component.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: December 10, 2013
    Assignee: Euramax International, Inc.
    Inventors: Robert B. Bell, John J. McNichol, Joseph K. Wolf, J. Michael Connelly, Vincent Kehs, Jeffrey C. Bowling
  • Patent number: 8505982
    Abstract: In a connection apparatus for a corrugated tube a sealing sleeve, a coupling part, and an insertion part that can be inserted into the coupling part and comprises outwardly protruding latching portions on its outside surface, the coupling part is provided on an outside surface with cooperating latching portions. The coupling part comprises an inner holding device through which the corrugated tube can be guided in the direction towards the insertion part and performs elastically resilient radial movements thereby securing the corrugated tube against withdrawal. The corrugated tube extends into the sealing sleeve sitting in the interior of the insertion part having an axial flow passage, and with the holding device protruding axially into the opening of the insertion part in a coupled state. The outwardly protruding latching portions exposed on the outside of the connection apparatus when in the coupled state. The holding device compressing the sealing sleeve when in the coupled state.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: August 13, 2013
    Assignee: Schlemmer GmbH
    Inventors: Yanning Lei, Michael Gerking
  • Patent number: 8485562
    Abstract: A coupling for a suction line having a corrugated outer surface defining a valley between the corrugations used in connection with an emergency vehicle, the coupler comprising a collar having an inner surface, an internal projection formed on the inner surface of the collar and adapted to be received in the valley of the suction lines to restrict axial movement of the suction line relative to the collar, a receiver formed in the collar axially outward of the internal projection, a shank having a first portion adapted to he inserted within the suction line and a second portion extending outward of the first portion, wherein the second portion is adapted to attach the hose shank to the emergency vehicle, a flange extending radially outward between the first portion and the second portion, and a fastener adapted to selectively extend from the receiver radially inward relative to the flange when located axially outward of the flange.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: July 16, 2013
    Assignee: Red Head Brass, LLC
    Inventor: Richard Zerrer
  • Patent number: 8403371
    Abstract: First and second ridge portions at the foremost end of a flexible pipe are pressed into first and second enlarged-diameter ridge portions, respectively, each having an external diameter larger than the internal diameter of a rotary nipple and smaller than the front-end root diameter of a taper external thread of the rotary nipple. The back surface of the second enlarged-diameter ridge portion is brought into contact with a front-end surface of the rotary nipple. A rubber seal ring is fitted into each of a first and second root portion of the flexible pipe, respectively, and an aligning ring is fitted into each of a third root portion of the flexible pipe located on the front-end side thereof from the first root portion and a fourth root portion of the flexible pipe located on the back side thereof from the second root portion, respectively.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: March 26, 2013
    Assignee: Nikkoh Metals Co., Ltd.
    Inventors: Ichiro Kawabata, Yoshiaki Minamide
  • Patent number: 8372229
    Abstract: A method for coupling corrugated pipe segments is disclosed. The method includes providing first and second thermoplastic corrugated pipe segments arranged to form a fluid flow path and aligning ends of the pipe segments adjacent one another to form a joint. The method further includes providing a coupling assembly having a thermoplastic sheet with a flexible weld rod of a thermoplastic material attached thereto and circumferentially contacting the coupling assembly with the first and second thermoplastic pipe segments. An electrical current is applied to the weld rod to cause the weld rod, sheet and pipe segments to fuse to one another and form a circumferential weld seam on each side of the joint.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: February 12, 2013
    Assignee: Lane Enterprises, Inc.
    Inventors: Jerome S. Silagyi, Mark Dick, Brian Chestnut
  • Patent number: 8308201
    Abstract: A fitting incorporating a crimp sealing device and a method of forming a seal between a length of corrugated tubing and the fitting are provided. A sealing crimp is formed over at least one corrugation of the tubing, where the sealing crimp can utilize a preformed bend or bulge to form a crimp and seal. Alternatively, the sealing crimp can apply pressure radially against an outer sleeve of the fitting, such that at least one corrugation of the tubing is compressed axially or radially to form a primary seal. The outer sleeve also can include one or more gaskets arranged between the outer sleeve and the tubing for forming a secondary seal. An inner sleeve can be received radially inside the outer sleeve, and one or more gaskets can be arranged between the inner sleeve and the tubing. Further, a jacket crimp can be applied against an end of the sleeve member to contact a jacket that at least partially covers the tubing.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: November 13, 2012
    Assignee: Titeflex Corporation
    Inventors: Scott Duquette, Franz Kellar, Harold Crowder, Vanwijak Eowsakul, Brian Coppola
  • Patent number: 8230885
    Abstract: The invention relates to a fluid duct (10), especially for use in motor vehicles to feed liquid in order to wipe windows or headlights of said motor vehicle. Said fluid duct (10) comprises a flexible pipe (12) with at least one corrugated pipe section (22) and at least one plain pipe section (24) that adjoins the corrugated pipe section (22), at least one pipe joint (16, 20) with a pipe connecting section (26) which is inserted into a plain pipe section (24), and a support sleeve (36) for each pipe joint (16, 20). The support sleeve (36) surrounds the plain pipe section (24) receiving the pipe connecting section (26) and presses the plain pipe section (24) against the pipe connecting section (26).
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: July 31, 2012
    Assignee: Fraenkische Rohrwerke Gebr. Kirchner GmbH & Co. KG
    Inventors: Manfred Krauss, Soeren Schroeter
  • Patent number: 8210573
    Abstract: Apparatus and methods for joining similar pieces of plastic pipe includes using the shape memory of the pipe pieces to slightly deform a “female” end to permit insertion therein of a non-deformed male end. The deformation is sufficient to permit the insertion but not so large as to preclude the substantially complete “recovery” of the female end's shape and size, using the “shape memory” of the pipe material. Embodiments include, without limitation, single-walled (or mono-walled) pipe, pipe formed from multiple material layers, corrugated pipe, flat-walled pipe, and others. Preferred tools and apparatus are disclosed for stretching the female end and maintaining the desired stretch during transportation and storage, for sealing the joint (via adhesive/sealant, flange gasket, O-ring, or the like), and for further protecting the resulting joint.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: July 3, 2012
    Inventor: Dan W. C. Delmer
  • Patent number: 8109540
    Abstract: A pipe joint for plastic pipe includes a bell member and a spigot member. The bell member includes a tubular plastic body wall having a radially outer side including a pair of spaced apart circumferentially extending ribs and a metal reinforcement ring located between the ribs. The tubular plastic body wall includes a circumferential plastic ring portion extending between the ribs and radially exterior of the metal reinforcement ring to encase the metal reinforcement ring within the tubular plastic body wall. A radial gap may be provided between the plastic ring portion and the metal reinforcement ring to accommodate differing thermal shrinkage rates as between the two different materials. The spigot member, which is insertable into the bell member, includes a tubular plastic body wall having an internal surface and an external surface and a longitudinal axis and metal reinforcement encased within the tubular plastic body wall.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: February 7, 2012
    Assignee: Contech Construction Products Inc.
    Inventors: William Zepp, James C. Schluter, James Shade
  • Patent number: 8104518
    Abstract: A corrugated hose pipe assembly has a corrugated pipe that is surrounded by an elastomeric high-pressure hose. The ends of the high-pressure hose are grasped and fixed by connectors. The connectors each have a pipe piece (210, 220) which is fitted with a circumferential, radially projecting stationary nipple stop (211, 221) at the axial end thereof facing the corrugated pipe. A hose nipple (310, 320), which is positively mounted on each pipe piece (210, 220), is provided with a radially protruding, circumferential hose stop (311, 321) at the end of the hose nipple (310, 320).
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: January 31, 2012
    Assignee: ConiTech Kuehner GmbH & Cie KG
    Inventors: Andreas Wildermuth, Josef Steinbeck
  • Patent number: 8056938
    Abstract: A fitting for joining a corrugated conduit to a structure associated therewith is disclosed. The fitting comprises a hollow body having an inner chamber and at least two body resilient tabs extending from an end. The at least two body resilient tabs define at least two body gaps therebetween. Each of the at least two body resilient tabs defines an outwardly extending detent. The fitting also comprises a retaining ring including a flange and at least two ring resilient tabs extending from the flange and defining ring gaps therebetween. Each of the at least two ring resilient tabs defines an inwardly extending detent adapted to engage a corrugated conduit. Each of the at least two body resilient tabs is selectively inserted in a corresponding one of the at least two ring gaps, and the outwardly extending detents selectively engage an end of the flange of the retaining ring.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: November 15, 2011
    Assignee: Royal Group Inc.
    Inventors: James Shen, Lorne Smyth, John Kehren
  • Patent number: 8043111
    Abstract: Either of first and second corrugated tubes having different groove (or ridge) pitches can be mounted on a connector 10. In this case, the distance between a first retaining projection 32 and a second retaining projection 34 is a common multiple of these pitches, and therefore either of the two different corrugated tubes can be properly retained on both of the first and second retaining projections 32 and 34. Furthermore, either of the first and second corrugated tubes 50 and 52 of different diameters can be properly fixed to a tube insertion portion 20 by a binding band passed through binding band passage holes 30.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: October 25, 2011
    Assignee: Yazaki Corporation
    Inventors: Toshiharu Takahashi, Motoyoshi Suzuki, Kenji Kajikawa
  • Patent number: 7980601
    Abstract: A coupler for a corrugated pipe in which several elements thereof can be handled as a single assembly body, and which can be coupled to the corrugated pipe through a simple process. The coupler includes a coupling base, a guide member, a compression ring, a force-fitting member, a sleeve and a cap nut. A through hole, a compression hole and an insert hole are continuously formed through the coupling base. The guide member is inserted into the insert hole of the coupling base. The compression ring has an opening such that the compression ring is elastically expanded or contracted in diameter. The compression ring is fitted into the insert hole of the coupling base. The force-fitting member is fitted into the insert hole of the coupling base. The sleeve is inserted into the insert hole of the coupling base. A passing hole having a diameter corresponding to the diameter of the peak portion of the corrugated pipe is formed through the sleeve.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: July 19, 2011
    Assignee: Kofulso Co., Ltd.
    Inventor: Seung-il Oh
  • Patent number: 7896406
    Abstract: A hose connector includes a cylindrical elongated member having a first and second end, a first and second inner sleeve rotatably mounted on the cylindrical member, and a first and second outer sleeve capable of connecting to the respective first and second inner sleeves.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: March 1, 2011
    Assignee: CertainTeed Corporation
    Inventors: Michael D. Suda, Jeffrey Sacks, Christopher Laidley
  • Patent number: 7871109
    Abstract: A drain basin has a basin with walls and a cavity therein. The basin can have one or more sleeves coupled thereto. The sleeves are in communication with the cavity. The sleeves form pipe couplings to the basin. Each sleeve has a free end and a fixed end. The fixed end is coupled to the basin. The sleeve has an inside diameter that decreases toward the fixed end, which inside diameter is structured and arranged to receive the outside diameter of a small pipe. The sleeve also has an outside diameter that increases toward the fixed end, which outside diameter is structured and arranged to receive the inside diameter of a larger pipe. In addition, catches are provided to couple a corrugated pipe to the sleeve. The catches comprise fingers that flex or projections on ribs. Thus, the drain basin allows several diameters of several different pipes to be coupled to the drain basin.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: January 18, 2011
    Assignee: DFW Alliance Corp.
    Inventors: James Stephen McKinnon, Carl Ryan Whitmarsh
  • Patent number: 7775561
    Abstract: A connection assembly for pipes is provided. The assembly includes a pipe, a corrugated conduit, a circumferentially contractible seal positioned between portions of the conduit and the pipe, a clamp encircling the conduit, seal and pipe, and a plurality of discrete projections on the inside of the seal to limit the extent of overlap between the pipe and the conduit. The seal is circumferentially contractible to secure the conduit and the pipe together with the seal serving to effect a gas-tight seal while filling the annular gap between the conduit and pipe.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: August 17, 2010
    Assignee: Tru-Flex Metal Hose Corp.
    Inventor: Scott R. Swank
  • Patent number: 7690691
    Abstract: A plastic pipe coupler is provided having a plurality of sections connected to one another but with at least one gap between the ends of two sections which are adjacent to one another. Each of the coupler sections has an exterior surface and an interior surface, and is fabricated so that when taken together, the sections cooperatively circumvent a section of plastic pipe. Each bracket is secured to the exterior surface of one of the aforesaid sections of the coupler and has a base plate, a pair of sidewall plates attached to each base plate, and a crosspiece having a first end and a second end, the first end of which is in contacting relationship with one of the pair of sidewall plates, while the second end is in contacting relationship with the other of the pair of sidewall plates.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: April 6, 2010
    Assignee: Advanced Drainage Systems, Inc.
    Inventor: John M. Kurdziel
  • Patent number: 7690695
    Abstract: A fitting assembly for forming a fluid-tight seal with an end of a stainless steel tube is provided with a seal seat that is composed of a material that is harder than the material that the stainless steel tube is composed of. The stainless steel tube may be gripped between a bushing and the seal seat to form a fluid-tight seal with the stainless steel tube. The fitting assembly may be tightened so that the stainless steel tube is deformed between the bushing and the seal seat of the fitting assembly.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: April 6, 2010
    Assignee: Titeflex Corporation
    Inventors: Scott Duquette, Brian R. Kraft
  • Patent number: 7690693
    Abstract: Fitting connections for corrugated metal tubing. The connection includes a body having an externally-threaded end, a nut or other fastener which is threadably engageable with the body end, and a collet which is receivable coaxially within the fastener. The collet is formed as a series of individual, arcuate tangs which are joined together by a retaining collar, the collar allowing the segments to be resiliently opened within the fastener so as to allow the crests of the tubing to pass therethrough. The fitting may be pre-assembled with the collet segments being received coaxially within the fastener with the collar extending rearwardly from the fastener, and with the fastener then being partially threaded onto the fitting body.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: April 6, 2010
    Assignee: Parker-Hannifin Corporation
    Inventors: Ronald A. Moner, Thomas B. Lininger
  • Patent number: 7661444
    Abstract: The invention relates to corrugated pipe hose assemblies which are not provided with fixtures and which are used to transport preferably gaseous media in high-pressure applications, wherein a mount (3) is provided in order to receive an open end of the corrugated pipe (6) of the corrugated pipe assembly (2) and which is pressed therewith in order to form a metallic seal. The seal is obtained by means of a sealing bushing (25) between the inner wall (18) of one part (16) of the mount and the ribs (8) of the corrugated pipe (6). Another part (17) of the mount (3) firmly holds a section (27) of the covering (11) of the corrugated pipe hose assembly (2) in an axial direction and also with respect to tilting movements such that pivoting movements of the corrugated pipe hose assembly (2) do not result in a relative movement between the corrugated pipe (6) and the mount (3), especially with regard to one part (16).
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: February 16, 2010
    Assignee: Eaton Fluid Power GmbH
    Inventor: Andreas Hilgert
  • Patent number: 7621567
    Abstract: A sealing device and method for sealing a length of tubing with a fitting is provided, where the sealing device includes at least one sealing surface formed with a plurality of ridges. The ridges include at least one end ridge and at least one internal ridge which are spaced apart by a predetermined distance, and formed with a desired geometry such as U-shaped, V-shaped, or various other shapes and with different sealing faces such as curved or flat. The ridges are spaced apart in a manner to maximize sealing pressure, and produce stress concentrations and localized deformations, in order to create a seal at lower torques or on stiffer tubing or tubing with at least one minor defect such as a dent or weld. The sealing device is particularly useful for sealing an end corrugation of tubing in a fitting used in gas and liquid piping systems.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: November 24, 2009
    Assignee: Titeflex Corporation
    Inventors: Scott Duquette, Franz Kellar
  • Patent number: 7614664
    Abstract: A fast-connecting joint for corrugated pipes includes a main body and an engaging member. The main body has a through hole for liquid to flow through, and an inner recessed annular wall provided with an annular slope close to one end of the main body. The engaging member possesses an outer annular wall, and plural flexible curved petals extending outward around one end of the outer annular wall and respectively having a projection on their outer surface. In assembly, the engaging member is inserted in the through hole of the main body, with the projections of the engaging member correspondingly fitted against the inner recessed annular wall. In use, a corrugated pipe can be quickly fastened with the fast-connecting joint tightly when it is inserted into the engaging member to keep its annular groove blocked by the curved petals.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: November 10, 2009
    Assignee: Yea Der Lih Enterprise Co., Ltd.
    Inventor: Tzu-Liang Tsai
  • Patent number: 7607700
    Abstract: A sealing device and method for sealing a length of tubing with a fitting, where the sealing device includes at least one sealing surface formed with a plurality of ridges. The sealing device is particularly useful for sealing at least an end corrugation of tubing in a fitting used in gas and liquid piping systems. The fitting is sized to maintain a generally circular shape of the end corrugation after the corrugation is collapsed between the ridged sealing surface and another sealing surface. In particular, an inner diameter of one or more components of the fitting can be sized such that the corrugated tubing will have a circular profile to provide an optimal seal.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: October 27, 2009
    Assignee: Titeflex Corporation
    Inventors: Scott Duquette, Franz Kellar
  • Patent number: 7600793
    Abstract: A twin-wall pipe comprises an internal pipe and an external pipe. The external pipe is corrugated, having elevations and troughs. The twin-wall pipe is further provided with a socket. In a transition portion towards the twin-wall pipe and the socket, provision is made for at least one overflow passage which interconnects the clearance between the external pipe and internal pipe in the vicinity of the transition portion and an adjacent elevation.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: October 13, 2009
    Inventor: Ralph Peter Hegler
  • Patent number: 7581564
    Abstract: 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: Grant
    Filed: May 7, 2008
    Date of Patent: September 1, 2009
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Nobuyoshi Tanaka, Masato Ibaraki, Tsutomu Sakata, Toshitsugu Morii
  • Patent number: 7559581
    Abstract: A coupling structure for a pipe having an enhanced sealing property for a bellows-type pipe. The coupling structure includes a tubular inner sealing portion that is formed from an elastic material. The tubular inner sealing portion has an abutment surface that is configured to abut against an inner circumference of the pipe. The coupling structure also includes a tubular outer sealing portion that is formed from an elastic material. The tubular outer sealing portion has an abutment surface that is configured to abut against an inner circumference of the pipe. An axial end of the tubular outer sealing portion is connected to the tubular inner sealing portion so as to enclose the end face of the pipe. The coupling structure is also provided with a fastener for holding both the tubular inner sealing portion and the tubular outer sealing portions radially inwardly and outwardly.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: July 14, 2009
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Hideo Saito, Kazumasa Hisada, Fumio Mizuta, Masaru Oda, Kenji Kimura
  • Patent number: 7469905
    Abstract: A permanently lubricated film gasket for providing a fluid-tight seal between a corrugated pipe and a smooth annular section of an outer pipe or section when the corrugated pipe and the outer pipe or section are in a relative surrounded and surrounding relationship. A first portion of the gasket is shaped to fit within a groove or recess of the corrugated pipe. A second portion of the gasket extends from the first portion. The second portion is at least partially comprised of permanently lubricated film for facilitating in the connection of the pipes along a single direction.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: December 30, 2008
    Assignee: Springseal Inc.
    Inventor: Mark Knapp
  • Patent number: 7451785
    Abstract: A flexible tube 10 of the present invention is disposed downstream of a exhaust path from an engine E, and formed of an outer bellows 3 as an outer tube and an inner bellows 4 as an inner tube; pleats 4c,4c of the inner bellows 4 are smaller in depth and pitch than the pleats 3c of the outer bellows 3, and the buffering space S is provided with a gap t between the pleats bottoms of the outer bellows 3 and the pleats tops of the inner bellows 4, and further, a partition 17 that splits the exhaust path is disposed in the inner bellows 4. For this reason, sound insulation effect is improved, and the lowering of the temperature of the exhaust gas is suppressed, leading to quick temperature rise of the exhaust gas to be fed into the catalytic converter, thereby promoting the activation of the catalysts and improving the capability to purify exhaust gas, and the exhaust efficiency can be improved thereby increasing output performance of the engine.
    Type: Grant
    Filed: December 25, 2003
    Date of Patent: November 18, 2008
    Assignee: Hirotec Corporation
    Inventors: Masao Taira, Michisada Kumasaki