Assembling Preformed Helical Coil Or Rings With Separate Tube Patents (Class 156/144)
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Patent number: 11655585Abstract: An iron-steamer appliance includes: a housing including an internal water reservoir; a sole plate attached under the housing, the sole plate including first vents; first and second steam chambers in fluid communication with the water reservoir, wherein the first steam chamber is in fluid communication with the first vents; and a steamer nozzle in fluid communication with the second steam chamber, the steamer nozzle including second vents. The steamer nozzle is movable between retracted and extended positions, wherein in the retracted position, the nozzle is located directly above a peripheral footprint defined by the sole plate, and in the extended position, the nozzle is located at least partially forwardly of the sole plate peripheral footprint, and wherein in moving from the retracted position to the extended position, the steamer nozzle moves substantially parallel to the sole plate.Type: GrantFiled: April 16, 2019Date of Patent: May 23, 2023Assignee: Hamilton Beach Brands, Inc.Inventors: Brandon Sung-Hwan Song, Drew Carlson
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Patent number: 11445876Abstract: The present disclosure relates to a cleaner including an improved structure to enable self-standing. The cleaner includes a head main body including a brush, a main wheel coupled to the head main body to be positioned in the rear of the brush, a suction pipe disposed between the brush and the main wheel to enable self-standing, a connector configured to connect the suction pipe and the head main body, and a hose having an elasticity such that the suction pipe maintains a self-standing state and disposed between the head main body and the connector.Type: GrantFiled: August 1, 2018Date of Patent: September 20, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Yeon Su Kim, Jae Won Choi, Jae Ho Jang, Seung Wook Suh
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Patent number: 10139030Abstract: Apparatus and methodology for installing and curing of “Cured-in-place” pipe, mounted unitarily as a mobile unit having a pressurization system such as a low pressure-high volume blower system, a low-NOx burner system, a power system such as a hydraulic reservoir, electrical and/or motor driven, and a burner chamber system.Type: GrantFiled: June 2, 2017Date of Patent: November 27, 2018Assignee: Rush Sales Company, Inc.Inventor: Jim Joseph Poer
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Patent number: 9857018Abstract: The polymeric pipes reinforced with a metal casing are used for transporting oil and gas, acids, alkali products, drinking water and industrial water, and also in the transportation of aggressive and neutral pulps. A metal-containing polymeric reinforced pipe includes a welded metal casing and a polymeric matrix having an amorphous-phase-based molecular structure. The metal-containing polymeric reinforced pipe is produced by extrusion moulding with simultaneous feeding of a polymer melt and the reinforcing metal casing into the mould cavity, followed by intensive cooling of the internal and external surfaces of the pipe being moulded. The invention increases the quality and endurance limit in the radial direction of the metal-containing polymeric reinforced pipe, productivity of the process for manufacturing the pipe, and also the strength and technological effectiveness of a pipeline constructed from the pipes produced.Type: GrantFiled: August 27, 2012Date of Patent: January 2, 2018Inventor: Yuriy Maksimovich Petrov
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Patent number: 9365004Abstract: A flexible, stretchable, crush resistant hose particularly well suited for supplying breathing gases to patients in medical applications and the like has a helix defined by reinforcing coils of thermoplastic material, and a web of thermoplastic material bonded or welded to adjacent ones of the coils, preferably near outer diameter portions of the coils. The web extends radially inwardly between the adjacent pairs of the reinforcing coils to define a helical reverse-direction crease that can be located closer to or farther from a centerline of the hose than is the inner diameter of the reinforcing coils. The thermoplastic material of the hose is stress relieved by an annealing process performed during axial compression of the hose at a time after the hose has been formed.Type: GrantFiled: September 6, 2013Date of Patent: June 14, 2016Assignee: Schauenburg Hose Technology GMBHInventor: Martin E Forrester
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Patent number: 9308698Abstract: A flexible, stretchable, crush resistant hose particularly well suited for supplying breathing gases to patients in medical applications and the like is formed by providing a helix of coils of thermoplastic material that are bonded to a web of thermoplastic material, preferably along inner diameter surface portions of the coils. The web extends radially outwardly from between adjacent coils to define a helical reverse-direction crease at a maximum outer diameter of the hose when the hose is in a normal minimal-length condition wherein the coils are situated side-by-side sandwiching portions of the web therebetween. The thermoplastic material of hose is stress relieved by an annealing process performed while the hose is axially compressed after the hose is formed.Type: GrantFiled: May 6, 2013Date of Patent: April 12, 2016Assignee: Schauenburg Hose Technology GmBhInventors: Martin E Forrester, Ralf Jourdan
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Publication number: 20140360616Abstract: A method for making helically corrugated rubber tubing with a helical reinforcing element secured therein. A helical spring like element with axially spaced convolutions is slid onto a mandrel and a sleeve formed of uncured rubber is slid over the spring like element. The mandrel is then rotated about its axis and a flexible cord is wrapped around the sleeve to press portions of the sleeve into the spaces between adjacent convolutions of the spring like element and form helical corrugations. The resulting assembly is then placed in an oven to cure the rubber sleeve after which the cord is removed. The finished product is then removed from the mandrel.Type: ApplicationFiled: June 10, 2014Publication date: December 11, 2014Inventor: Vance M. Kramer, Jr.
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Patent number: 8679272Abstract: A run-flat pneumatic tire assembly includes a pneumatic tire having an elastomeric casing and a tire cavity formed therein. A longitudinally-extending and approximately planar length of strip material is helically arranged within the tire cavity to pre-stress the length of strip material for usage of the pneumatic tire during under-inflated and non-inflated conditions. A method of making a run-flat pneumatic tire assembly is also included.Type: GrantFiled: September 4, 2013Date of Patent: March 25, 2014Assignee: Bridgestone Americas Tire Operations, LLCInventor: Edward G. Markow
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Publication number: 20130220472Abstract: The present invention relates to a fully laminated flexible ventilation duct, which is used in the ventilation systems in order to convey the conditioned air into the spaces to be subject to air conditioning, wherein said ventilation duct is self heat-insulating and has a flexible structure.Type: ApplicationFiled: November 2, 2011Publication date: August 29, 2013Inventor: Hikmet Kose
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Publication number: 20130090632Abstract: It is an object to stably provide a thin-walled flexible medical tube having excellent kink resistance and tensile strength by a simple manufacturing method. The object is achieved by a method for manufacturing a medical tube that includes a coil layer on an inside of an outer layer tube made of a resin, and the method includes inserting the coil layer into the outer layer tube and heating the outer layer tube at a molding temperature lower than a melting point of the outer layer tube, thereby bringing the outer layer tube into contact with the coil layer to slidably fix the outer layer tube onto the coil layer.Type: ApplicationFiled: June 7, 2011Publication date: April 11, 2013Applicant: KANEKA CORPORATIONInventors: Hitoshi Tahara, Akitoshi Sakata
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Publication number: 20130037159Abstract: A method for making helically corrugated rubber tubing with a helical reinforcing element embedded therein and with a relatively smooth interior surface. The tubing is formed with separate inner and outer tubular wall portions with fabric material in between. The inner and outer wall portions may be formed of different elastomeric compositions. Also the method provides for annular cuffs at the opposite ends of the tubing.Type: ApplicationFiled: August 12, 2011Publication date: February 14, 2013Applicant: CRUSHPROOF TUBING COMPANYInventors: Vance M. Kramer, JR., Jonathan O. Rodebaugh
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Publication number: 20110220270Abstract: A method for producing an endoscope flexible tube comprising the steps of: preparing a flexible tube assembly including a spiral tube formed by spirally winding a metal strip and a cylindrical mesh sleeve, covering the spiral tube, formed by knitting metal wires; covering the flexible tube assembly with an outer coat from one end toward the other end of the flexible tube assembly by using an extrusion molding machine wherein the outer coat has a lower layer formed of a thermoplastic polyurethane elastomer and an upper layer formed of a thermoplastic polyester elastomer and the total thickness of the upper layer and the lower layer is made constant; and annealing the covered flexible tube assembly at a temperature in the vicinity of the softening point of the layer lower in softening point of the upper layer and the lower layer after the step of covering the flexible tube assembly with the outer coat, wherein in the step of covering with the outer coat, the melt viscosity ratio (thermoplastic polyurethane eType: ApplicationFiled: January 25, 2011Publication date: September 15, 2011Applicant: FUJIFILM CORPORATIONInventor: Junichi KOORI
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Publication number: 20110214773Abstract: A method of manufacturing a rubber hose reinforced by a plurality of helically arranged steel cords is provided. The rubber hose includes an inner tube, an outer tube, and a laminated reinforcing layer between the inner and outer tubes. The reinforcing layer is formed by laminating unit layers on each other. A composite strip material is formed by embedding a plurality of reinforcing steel cords in an unvulcanized rubber strip so as to extend in the longitudinal direction thereof. The strip material is wound around the inner tube and vulcanized. The unit layers are formed from the composite strip material having a single continuous form, and each layer is formed by alternately repeating a winding pass forming step for winding the composite strip material in a first direction and a winding pass forming step for winding the composite strip material in a second direction opposite the first direction.Type: ApplicationFiled: September 2, 2009Publication date: September 8, 2011Applicant: THE YOKOHAMA RUBBER CO., LTD.Inventors: Yousuke Hamachi, Akira Onodera, Shuichi Toriumi
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Publication number: 20110048566Abstract: A high pressure hose and method of manufacturing the hose is disclosed. The hose is comprised of an elastomer, thermoset rubber inner tube, reinforced with one or more layers of braided or spiralized high tensile strength wire or high tenacity textile yarn and covered with a highly flexible thermoplastic sheath.Type: ApplicationFiled: August 20, 2010Publication date: March 3, 2011Applicant: SCHIEFFER CO. INTERNATIONAL L.C.Inventor: Jeffrey D. THEIS
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Publication number: 20100319836Abstract: A polymer prosthesis with lumen and an axial length and having in a pre-delivery condition a plurality of relatively stiff stenting segments spaced from each other along the length of the prosthesis, the spaces between the relatively stiff stenting segments of a first polymer being bridged by relatively flexible linking segments of a second polymer, different from the first, the relatively stiff stenting segments and the relatively flexible linking segments being alternately arranged along the length of the prosthesis.Type: ApplicationFiled: August 21, 2006Publication date: December 23, 2010Applicant: C.R. BARD INC.Inventors: Thiemo Blank, Thomas Wille
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Publication number: 20100108170Abstract: A crush resistant and stay put hose is provided. There is a helical member having a plurality of coils and a wall surface of one or more thermoplastic polymer layers. The layers extend from one coil to the next and the wall surface between the coils has at least one living hinge. When one portion of the hose is in an extended condition, the hose remains in the extended condition without reverting to the unextended condition. Methods of making the hose are also disclosed.Type: ApplicationFiled: November 6, 2008Publication date: May 6, 2010Inventors: Frank Chudkosky, Ken Campbell
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Publication number: 20090131910Abstract: A catheter for use in a patient's body lumen, having a shaft section configured to minimize ultrasonic image artifacts and the direct ultrasonic image brightness of the shaft surface and its internal components, and to produce its image at a wide range of imaging angles, preferably with an intensity not substantially different than surrounding tissue of the body lumen under ultrasound visualization. The shaft section is operative for the desired use of the catheter, yet is also configured to facilitate accurately imaging the shape and location of the shaft section, and easily differentiate it from the surrounding anatomy without unduly obscuring the images of the adjacent anatomy using an ultrasound imaging system.Type: ApplicationFiled: January 20, 2009Publication date: May 21, 2009Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventor: William E. Webler
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Patent number: 7510523Abstract: A method for fixing one of a balloon and a tubular member to an object with a thread for a medical equipment, may include covering the object with an end of the one of the balloon and the tubular member, winding the thread at a first pitch in a first direction from an edge of the end of the one of the balloon and the tubular member toward an intermediate position of the one of the balloon and the tubular member, and winding the thread at a second pitch in a second direction opposite to the first direction, the second pitch being shorter than the first pitch.Type: GrantFiled: December 16, 2004Date of Patent: March 31, 2009Assignee: Fujinon CorporationInventor: Toshio Sakamoto
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Patent number: 7060798Abstract: An adhesive composition made by reacting a soy protein with at least one compound under conditions sufficient for introducing additional phenolic hydroxyl functional groups, amine functional groups, and/or thiol functional groups into the soy protein structure.Type: GrantFiled: May 13, 2003Date of Patent: June 13, 2006Assignee: State of Oregon Acting by and through the Oregon State Board of Higher Education on Behalf of Oregon State UniversityInventors: Kaichang Li, Yuan Liu
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Publication number: 20030075228Abstract: A flexible duct comprises inner and outer perfluoroplastic tubes with a melt bondable adhesive interposed therebetween. A resilient helical coil is interposed between the adhesive and one of the tubes. The adhesive serves to thermally laminate the tubes together at wrinkled locations between the turns of the coil.Type: ApplicationFiled: November 12, 2002Publication date: April 24, 2003Inventor: Stephen W. Tippett
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Patent number: 6454897Abstract: It is of the type comprising, from the inside to the outside, a flexible metal tube 2 having a helical winding of turns, an internal sealing sheath 3 arranged around the said flexible metal tube, at least one armouring ply 5 wound around the said internal sealing sheath and at least one external sealing sheath 7, the internal sealing sheath being extruded onto the flexible metal tube using extrusion means, characterized in that it furthermore consists in heating the said flexible metal tube 2 upstream of the extrusion means and to a temperature below 100° C.Type: GrantFiled: December 23, 1998Date of Patent: September 24, 2002Assignee: CoflexipInventor: Michel Paul Morand
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Patent number: 6048425Abstract: The invention relates to a fishing rod with preinserted fishing line guide members. A prepreg formed of a high-strength fiber impregnated or mixed with resin is wound to form the rod pipe. A plurality of wide fishing line guide members each having a flat-shaped section are fixed integrally to the inner peripheral surface of the rod pipe, the inner peripheral side portions of the wide fishing line guide members are respectively projected inwardly from the rod pipe inner peripheral surface, and the outer portions of the rod pipe existing in the wide fishing line guide fixed portions are respectively bulged outwardly and widely. The fishing line guide members are strongly fixed to the inner peripheral surface of the rod pipe without lowering the strength of the rod pipe.Type: GrantFiled: February 20, 1996Date of Patent: April 11, 2000Assignee: Daiwa Seiko, Inc.Inventors: Shunji Sunaga, Hiroshi Oda, Tomoyoshi Tsurufuji
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Patent number: 5246158Abstract: A method of manufacturing a selective isolation screen includes steps of preparing for a tubular screen provided with spacer members and a wire on a base member, and supplying sealing material from a sealing material supply device which supplies sealing material at a location where sealing is required on the tubular screen while rotating the sealing material supply device relative to the tubular screen thereby filling the annulus between the spacer members which are adjacent to each other in the circumferential direction to form seal means. Difficulty in welding can thereby be avoided and location and state of mounting of sleeves can be visually checked.Type: GrantFiled: December 18, 1992Date of Patent: September 21, 1993Assignee: Nagaoka International Corp.Inventors: Tadayoshi Nagaoka, Derry D. Sparlin
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Patent number: 5205886Abstract: An improved method of inserting a liner into a metallic pipeline is disclosed. The liner is formed from a plurality of concentric tubes that are enveloped in a flexible, expansible, tear resistant material. When the concentric tubes are pulled into the pipeline, the tear resistant material provides protection against tearing of the tubes by burrs, snags or other imperfections on the inside of the metallic pipeline. The tear resistant material may be a fabric, woven material or mesh. Materials having a structure that permits escape of fluid entrapped during subsequent expansion of the concentric tubes on formation of the liner are preferred. The method permits the lining of pipeline sections that have bends, loops or the like, while protecting the liner from tearing during insertion into the pipeline.Type: GrantFiled: June 12, 1992Date of Patent: April 27, 1993Assignee: Du Pont Canada Inc.Inventor: George White
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Patent number: 4938822Abstract: Electrode assemblies are provided such that a wire coil conductor is springingly secured into a tubular electrode or onto a pin without having to crimp, stake, weld, swage, or otherwise mechanically secure the wire coil electrode to the tubular electrode or pin. A simple assembly having high separation forces is provided by utilizing a wire coil electrode that, when untensioned, is either oversized with respect to the tubular electrode or is undersized with respect to the pin. Either the oversized wire coil electrode is rotated into the tubular electrode while reducing its oversized condition and placing same into a tensioned condition in order to secure it within the tubular electrode, or the undersized wire coil is rotated onto the pin in order to increase its undersized condition and simultaneously impart a tensioned condition thereto in order to springingly engage the wire coil electrode onto the pin.Type: GrantFiled: October 17, 1983Date of Patent: July 3, 1990Inventor: C. A. Peers-Trevarton
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Patent number: 4793042Abstract: A rolling mill roll assembly comprising an inner cylindrical mandrel and an outer cylindrical sleeve bonded thereto with glue containing grit particles. Wire is spirally wound around the outside of the mandrel and secured thereto with the glue. The sleeve has an inner diameter substantially equal to the outer diameter of the mandrel plus two times the wire thickness. The grit particles are thicker than the wire. The sleeve is heated to thermally expand the sleeve sufficiently to clear the grit particles when slipped over the mandrel. As the sleeve cools, the wire acts to center the sleeve on the mandrel, and the grit particles, which are harder than both the sleeve interior and the mandrel exterior become embedded in both to enhance the glue bond. The sleeve is substantially devoid of hoop stresses.Type: GrantFiled: September 19, 1983Date of Patent: December 27, 1988Assignee: Inland Steel CompanyInventor: Holton C. Easter
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Patent number: 4698890Abstract: A reformable, shape retentive hose having a precured tube located in a hose sidewall, and a reformable rod inserted in the precured tube. A method for making hose by placing at least one precured tube in the sidewall of a hose during the time that the hose sidewall is formed, curing the hose assembly with the precured tube in the sidewall, and inserting a reformable rod in a portion of the precured tube.Type: GrantFiled: January 27, 1987Date of Patent: October 13, 1987Assignee: The Gates Rubber CompanyInventor: Larry E. Neaves
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Patent number: 4689174Abstract: A system is disclosed for the production of double-walled helically wound thermoplastic pipe. The apparatus includes an endless former (10) of the axially advancing and rotating type for forming a band of thermoplastic material (24) into a corrugated outer wall (26). An internal extruding device (28) extends along the core of the former and extrudes a second band (34) of thermoplastic material onto the interior of the outer wall. A cold shoe (36) presses the inner wall against the outer wall to form a smooth inner wall (42) of the double-walled pipe. It is also possible to provide for the insertion of a reinforcing profile in the corrugations of the outer wall.Type: GrantFiled: October 8, 1986Date of Patent: August 25, 1987Inventor: Manfred A. A. Lupke
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Patent number: 4496411Abstract: A method for crimping tire bead rings in which an inner die member has grooves for holding the bead rings in the area of the bead splices and an upper die member engages the outer surface of the bead rings in that area. The die members are compressed with sufficient force for a sufficient period of time so that the strands of the bead rings are held together by the insulating material around the strands in the area of the bead splices. The side portions of the grooves control the spreading of the bead rings and may be flared to compress and then release the bead rings. The grooves of the inner die member may have movable inserts for ejecting the bead rings. The upper die member may also include grooves in mating engagement with the grooves of the inner die member for enclosing the outer portions of the bead rings at the splice area and provide for release of the bead rings after crimping.Type: GrantFiled: March 26, 1984Date of Patent: January 29, 1985Assignee: The Goodyear Tire & Rubber CompanyInventors: Richard A. Davies, Michael W. Lee, Frank A. Rodenberger, James R. Hill, David P. Kulavich, Donald L. Sowell
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Patent number: 4444707Abstract: The invention relates to a method and an apparatus for the manufacture of high-pressure hose composed of a plastic core and a plurality of layers of helically wound plastic-resisting members formed in particular of wires of high tensile strength which are rewound in a rewinding device from a supply reel onto several working spools, and optionally of an outer cover made of a plastic material. An intermediate layer of plastic yarn is disposed between every two helically wound pressure-resisting layers. After being unwound, the wires necessary for the helically wound pressure-resisting layers are precoiled over a hardened edge in the rewinding device and then wound onto the working spool in the stretched state. In accordance with the preferred embodiment, precoiling is done, not in a stranding machine, during hose production, but one stage earlier, in the rewinding device, where the individual wires are rewound from a supply reel onto so-called working spools.Type: GrantFiled: May 24, 1982Date of Patent: April 24, 1984Assignee: Polyflex Schwarz GmbH & Co.Inventor: Hans G. Schwarz
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Patent number: 4415389Abstract: A hose construction and method of making same are provided wherein such hose construction comprises a flexible corrugated hose made of polymeric material, a pair of hose connectors fixed to opposite ends of the hose, and a sleeve disposed around the hose and having opposite end portions wherein the sleeve is fastened to the hose only at its opposite end portions and the sleeve serves to improve the fluid pressure resistance and external wear resistance of the hose while keeping its flexibility substantially intact.Type: GrantFiled: May 5, 1980Date of Patent: November 15, 1983Assignee: Dayco CorporationInventors: Richard D. Medford, Jerry W. Cooper
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Patent number: 4400228Abstract: A tubular jacket of flexible plastic film is telescoped over one of two spaced coaxial mandrels extending toward each other, duct end collars are secured respectively on the mandrels, opposite ends of a flexible helically reinforced core are strapped respectively to the collars, a flexible insulation blanket is wrapped around the core and taped adjacent opposite ends, the jacket is pulled over the blanket, the collars are released, and the collared duct is removed from the mandrels.Type: GrantFiled: June 30, 1982Date of Patent: August 23, 1983Assignee: Owens-Corning Fiberglas CorporationInventor: Gary F. Gentry
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Patent number: 4342612Abstract: The invention provides a hose that withstands a vacuum which is considered to be approximately two to three times greater than the vacuum withstood by the best known previously available pliable convoluted semirigid plastic hoses of comparable designs. To fabricate the hose, a bobbin of wire stock is unwound, with the wire preferably being pulled off the end of the bobbin. The wire is then looped around a spool to form it into a spiral or coil having a preset diameter which is proportionately smaller than the diameter of a preformed, semirigid convoluted plastic hose. While the pulled wire is still substantially extended, it is taken up by being rolled upon the plastic hose, thereby snapping the preset formed wire spiral into the spiral convolutions formed in the surface of the hose. If desired, the spiral or coil might be pulled off the end of the samller diameter spool to impart a twist thereto.Type: GrantFiled: July 31, 1979Date of Patent: August 3, 1982Assignee: Titeflex CorporationInventors: James M. Lalikos, Harold K. Waite, Kenneth E. Lefebvre
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Patent number: 4336798Abstract: A plastic medical respiratory conduit is provided having a first tubular helical coil conduit communicating with a first source of fluid. The coil conduit is wrapped with a pliable tape to form a second conduit communicating with a second source of fluid. Resilient couplers can be attached to each end of the conduit to form part of a medical ventilator or humidification system, the resulting ventilator or humidification system providing heretofore unavailable advantages.Type: GrantFiled: October 6, 1980Date of Patent: June 29, 1982Assignee: Anthony V. BeranInventor: Anthony V. Beran
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Patent number: 4291453Abstract: An apparatus for and method of severing a continuous flexible reinforced elastomeric conduit supported on a plurality of elongated rigid mandrels disposed in connected end-to-end relation is provided with the apparatus and method enabling cutting through the conduit at each end of each mandrel so that each mandrel has a length of conduit therearound which is approximately equal to the length of the mandrel.Type: GrantFiled: October 9, 1979Date of Patent: September 29, 1981Assignee: Dayco CorporationInventor: Julien C. Mathieu
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Patent number: 4196031Abstract: The invention provides a hose that withstands a vacuum which is considered to be approximately two to three times greater than the vacuum withstood by the best known previously available pliable convoluted semirigid plastic hoses of comparable designs. To fabricate the hose, a bobbin of wire stock is unwound, with the wire preferably being pulled off the end of the bobbin. The wire is then looped around a spool to form it into a spiral or coil having a preset diameter which is proportionately smaller than the diameter of a preformed, semirigid convoluted plastic hose. While the pulled wire is still substantially extended, it is taken up by being rolled upon the plastic hose, thereby snapping the preset formed wire spiral into the spiral convolutions formed in the surface of the hose. If desired, the spiral or coil might be pulled off the end of the smaller diameter spool to impart a twist thereto.Type: GrantFiled: March 10, 1978Date of Patent: April 1, 1980Assignee: Titeflex CorporationInventors: James M. Lalikos, Harold K. Waite, Kenneth E. Lefebvre
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Patent number: 4132576Abstract: A polymeric flexible hose construction and method of making same are provided wherein such hose construction comprises a tubular wall defining a main longitudinally extending passage for conveying a fluid therethrough and a second wall adjoining the tubular wall and defining a second longitudinally extending passage for an electrical conductor with the second wall having a wall portion common with the tubular wall.Type: GrantFiled: September 26, 1977Date of Patent: January 2, 1979Assignee: Dayco CorporationInventors: Peter J. Neroni, Donald L. Kleykamp
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Patent number: 4091063Abstract: A molded hose construction and method of making same is provided wherein such hose construction has axially spaced convolutions and a controlled flexibility defined by alternating crests and troughs, and the hose construction has an elastomeric inner layer, an elastomeric outer layer, and an intermediate reinforcing layer made of a fabric material having a substantial open space between cooperating threads defining the fabric material; and the layers are bonded as a unitary structure by strike-through columns of elastomeric material extending through said substantial space with the alternating crests and troughs having a controlled wall thickness throughout which assures the controlled flexibility, and the crests and troughs having been formed with the elastomeric layers in a semi-cured condition to assure said controlled wall thickness thereof.Type: GrantFiled: March 12, 1975Date of Patent: May 23, 1978Assignee: Dayco CorporationInventor: Arthur D. Logan
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Patent number: 4082590Abstract: A process for manufacturing a flexible cylindrical body includes the steps of providing a flexible preform of non-resilient synthetic material which is inflatable to cylindrical form, inserting the preform into an elongated coil of an electrically conductive material having a diameter relative to that of the preform in its inflated cylindrical form such that the preform is expanded in an unstressed condition into engagement with the inner diameter of the coil, the inner face of the coil being coated with an adhesive material, and applying a predetermined voltage to the coil to thereby fuse the adhesive material and connect the coil and preform.Type: GrantFiled: January 2, 1976Date of Patent: April 4, 1978Assignee: National Marineplastic Co., Ltd.Inventors: Norihiko Iida, Shigeto Gobaru
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Patent number: 3950213Abstract: A machine is provided for making flexible tubular insulated duct having multiple wraps formed about a compressible inside core. A sheet forming collar shapes the wraps about the core upstream of a joint sealer which cooperates with an underlying conveyor to draw the core and wrap materials along a linear path of movement through the joint sealer to form a longitudinally extending joint on the outermost wrap of the duct. A second conveyor overlies the first conveyor downstream of the joint sealer, and the second conveyor and the joint sealer are selectively adjustable in height to form duct of selected diameter size and to apply a desired tractive force to the sealed duct. A cutting unit is selectively operable downstream of the second conveyor for cutting the duct into predetermined lengths.Type: GrantFiled: November 7, 1974Date of Patent: April 13, 1976Assignee: The Wiremold CompanyInventors: William E. Rejeski, Norman J. Perusse