Differential Fluid Pressure Used Patents (Class 156/244.14)
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Patent number: 12195240Abstract: A package includes a flexible body configured to transition between a collapsed configuration and an expanded configuration. The body includes an open first end, a closed second end, and sides extending between the first end and the second end. The package also includes a closure connected to the body having a first end, a second end, and a slit extending at least partially between the first end and the second end of the closure. The closure is configured to transition between a closed configuration, in which the closure retains the body in the collapsed configuration sealing the open first end of the body, and an open configuration upon application of a biaxial force to the first end and the second end of the closure, which causes the body to transition to the expanded configuration.Type: GrantFiled: January 4, 2023Date of Patent: January 14, 2025Assignee: Becton, Dickinson and CompanyInventors: Thotapalli Suryakiran, Sai Goutham Nuvvula, Sriram R
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Patent number: 12060186Abstract: A sealing device for forming a transversal seal to a tetrahedral packaging container is provided. The sealing device comprises a sealing element and an imprint ruler arranged at a longitudinal distance from the sealing element. The sealing element is configured to provide a top transversal seal to a packaging container while the imprint ruler is configured to provide a transversal imprint to the same packaging container.Type: GrantFiled: June 24, 2020Date of Patent: August 13, 2024Assignee: TETRA LAVAL HOLDINGS & FINANCE S.A.Inventors: Per Svanberg, Claes Wallin Klevås
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Patent number: 12043435Abstract: A packing machine and a method of use thereof for packing articles in airbags. The packing machine includes three consecutive stations that can receive airbags in a series of airbags one by one, wherein the article to be packed is placed in the airbag. The first station can receive a new bag containing the article. In the first station, the airbag can be horizontally sealed at the top to close the opening and can then be inflated. In the second station and the third station, the airbag can be vertically sealed and can then be dropped into a conveyor at the end of the third station. An air tube that extends between the first station and the second station can be used to inflate the airbags. Two linear actuators with gripping heads can move the airbags from between stations, and break the leading airbag from the series of airbags.Type: GrantFiled: September 22, 2022Date of Patent: July 23, 2024Inventor: Michael G Kaminski
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Patent number: 11969604Abstract: A biostimulator, such as a leadless cardiac pacemaker, having a flexible circuit assembly, is described. The flexible circuit assembly is contained within an electronics compartment between a battery, a housing, and a header assembly of the biostimulator. The flexible circuit assembly includes a flexible substrate that folds into a stacked configuration in which an electrical connector and an electronic component of the flexible circuit assembly are enfolded by the flexible substrate. An aperture is located in a fold region of the flexible substrate to allow a feedthrough pin of the header assembly to pass through the folded structure into electrical contact with the electrical connector. The electronic component can be a processor to control delivery of a pacing impulse through the feedthrough pin to a pacing tip. Other embodiments are also described and claimed.Type: GrantFiled: December 29, 2021Date of Patent: April 30, 2024Assignee: PACESETTER, INC.Inventors: Wade Keller, Thomas B. Eby, Sean McKenna, Brett C. Villavicencio
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Patent number: 11834103Abstract: An assembly for utility truck bodies having metal and/or composite reinforcement(s) and/or foam reinforcements and/or honeycomb reinforcements and/or wood reinforcements encapsulated within a thermoformed thermoplastic, or thermoset or fiber-reinforced thermoset walking surface floor structure of the truck bed assembly or other composite floor structure with attachable components and junctions, e.g., sidepack(s), and methods of making the same are provided.Type: GrantFiled: April 14, 2022Date of Patent: December 5, 2023Assignee: Altec Industries, Inc.Inventors: Ryan J. McKinney, Austin Graham, Kyle E. Hoffmann
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Patent number: 11794400Abstract: A method for manufacturing a composite pressurized-fluid vessel including winding a first polyolefin resin-based tape thereby forming a first layer of the vessel, depositing an intermediate second layer on the first layer, consisting of a material having variable permeability properties depending on the temperature and permeability below a pre-determined temperature threshold and non-permeability above the temperature threshold, winding a second resin-based tape on the intermediate second layer thereby forming a third layer, and cooling the intermediate second layer to a temperature below the temperature threshold while the first and third layers are each kept at a temperature above the melting temperature of their resin. Wherein the tape forming the third layer is based on a different resin from the first layer and during the step of depositing the intermediate second layer.Type: GrantFiled: November 2, 2020Date of Patent: October 24, 2023Assignee: L'Air Liquide, Société, Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventor: Philippe Papin
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Patent number: 11752680Abstract: Systems and methods are provided for fabricating and utilizing segmented hollow fibers. One embodiment is a method for fabricating a hollow fiber. The method includes disposing injection needles at orifices of a die, loading the die with a pool of molten material, driving the molten material through the orifices of the die, and iteratively injecting a gas into the molten material at the orifices via the injection needles and pausing injecting the gas as the molten material is driven through the orifices of the die, resulting in discrete hollow chambers within molten material exiting the die. The method also includes cooling the molten material into a hollow fiber that includes the discrete hollow chambers.Type: GrantFiled: February 26, 2020Date of Patent: September 12, 2023Assignee: The Boeing CompanyInventor: Weidong Song
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Patent number: 11622755Abstract: A first responder device for treating blood flow from a deep wound or a bodily cavity having an inflatable balloon, a first chamber accommodating a liquid arranged for inflating the balloon, a second chamber accommodating a cooling agent capable of dissolving in the liquid when coming in contact therewith, thereby lowering the temperature, a rupturable seal between the first and second chambers, and a structure for forcing the liquid out of the first chamber into the inflatable balloon, and for rupturing the rupturable seal.Type: GrantFiled: November 10, 2017Date of Patent: April 11, 2023Inventors: Cihan Kabadayi, Berthold Lorenz
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Patent number: 11590683Abstract: A molding-forming method, a molding mold, and a molding production apparatus with which efficient burrs removal is possible without requiring a large apparatus. A molding production method includes, in addition to a molding being formed inside a mold, burrs formed around the molding are separated from the molding. After formation of the molding, air is blown inside the mold on at least a portion of the burrs formed around the molding to cool the same, a projecting member is projected toward the cooled burrs, and the burrs are separated from the molding. After pressing the burrs toward the projecting member by the air blowing, the burr is pressed toward the mold surface facing the projecting member by projection of the projecting member to separate the burr from the molding.Type: GrantFiled: October 30, 2018Date of Patent: February 28, 2023Assignee: KYORAKU CO., LTD.Inventors: Kengo Shimada, Tadatoshi Tanji, Naoto Tani, Masaaki Onodera
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Patent number: 11541568Abstract: In an example of a three-dimensional (3D) printing method, a ceramic build material is applied. A detailing agent fluid is applied to a portion of the ceramic build material. The detailing agent fluid includes a cationic polymer. A liquid functional material, including an anionically stabilized susceptor material, is applied to another portion of the ceramic build material that is in contact with the portion of the ceramic build material having the detailing agent fluid thereon, such that at least some of the anionically stabilized susceptor material reacts with at least some of the cationic polymer that is in contact therewith to prevent spreading of the anionically stabilized susceptor material.Type: GrantFiled: January 28, 2016Date of Patent: January 3, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: James Elmer Abbott, Jr., Vladek Kasperchik
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Patent number: 11255088Abstract: A method of fabricating a polymer coated mat is disclosed to form a moisture barrier. The method includes moving a substrate mat along a processing path and heating the substrate mat to a predetermined temperature. A curtain of molten polymer is extruded through a slot die onto a surface of the heated substrate mat as the mat moves along the processing path to create a composite mat comprising a thin polymer film coating on at least one side of the substrate mat. The composite mat is then cooled in a controlled manner to cure and solidify the polymer film. The resulting composite mat may be used as a construction wrap, or it may be incorporated into other products such as an underlayment. A novel asphalt shingle may be fabricated using the composite mat in lieu of a traditional asphalt saturated mat or other substrate.Type: GrantFiled: July 15, 2016Date of Patent: February 22, 2022Assignee: Building Materials Investment CoporationInventors: Olan T. Leitch, Mark Logan Keaten, Matti Kiik
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Patent number: 10391688Abstract: A method is proposed for transferring a bottom label and a wraparound label into an injection mould for producing an injection-moulded part provided with the labels, in that the bottom label is arranged on the end side and the wraparound label on the lateral side of an insert die and the insert die equipped with the two labels is introduced into the mould cavity of the moulding tool, after which the bottom label is deposited on the bottom and the wraparound label on the lateral surface of the mould cavity of the moulding tool, in order to back-mould them with a plastics material injected into the mould cavity.Type: GrantFiled: April 13, 2015Date of Patent: August 27, 2019Inventor: Daniel Döbler
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Patent number: 10046395Abstract: Disclosed is a sustainable plastic laminated film particularly for packaging soap bars by envelope wrapping method. Disclosed is a laminated film for packaging comprising: (i) a first layer of polyester; (ii) a second layer of polyester; and, (iii) an intermediate layer comprising polyethylene therebetween wherein thickness of the intermediate layer having polyethylene is less than thickness of either of the adjacent layers of polyester. It has been determined that at least some technical problems pertaining to adaptability on packaging machines can be overcome by introducing the intermediate layer having polyethylene between the two layers of polyester.Type: GrantFiled: September 26, 2013Date of Patent: August 14, 2018Assignee: Conopco, Inc.Inventors: Sridhar Janardhana, Adesh Tewari
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Patent number: 10005222Abstract: A process of manual, semi-automatic and fully-automated integration of discrete components into a container that results in fast, reliable, cost-effective, and scalable production of composite containers is disclosed. The process can be embodied in manufacturing equipment that has a series of stations and may be called an assembly device. The equipment can produce containers, tubs, canisters, cartridges, etc. which are easily separated into different bio-degradable or compostable parts. Other container types are possible and are contemplated.Type: GrantFiled: February 17, 2017Date of Patent: June 26, 2018Assignee: ECO.LOGIC BRANDS INC.Inventors: Julie Corbett, Romeo Graham, Robert Watters, Michael Sirois, Ken Klippenstein, Dennis E. Schramm, Luc Boucher
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Patent number: 9744706Abstract: One or more implementations of a multi-layered bag with reinforced seals include an outer layer or bag and an inner layer or bag positioned within the outer layer or bag. The multi-layered bag further includes a draw tape positioned near the opening of the multi-layered bag. The draw tape can allow a user to at least partially close the multi-layered bag by drawing the layers of the bag together. The multi-layered bag further includes one or more tape seals that bond the draw tape to layers of the bag. The tape seals can be reinforced and include at least seven plies bonded together. One or more implementations further include methods of forming multi-layered bags with reinforced seals.Type: GrantFiled: July 22, 2014Date of Patent: August 29, 2017Assignee: The Glad Products CompanyInventors: Michael G. Borchardt, Shaun T. Broering, Robert H. Turner, David Hoying, Daniel C. Peck, Robert T. Dorsey, Matthew W. Waldron, Robert W. Fraser
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Patent number: 9731480Abstract: The present disclosure provides a polyester film based laminate comprising: an outer polyethylene layer; a core layer of a printed polyester film; and an inner polyethylene layer; an article made of said laminate. The printing on the said polyester film based laminate can be a reverse printing. The present disclosure further provides a method for producing a polyester film based laminate.Type: GrantFiled: June 14, 2012Date of Patent: August 15, 2017Assignee: Essel Propack LimitedInventors: Satya Prasad Bhattacharya, Mrinal Kanti Banerjee
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Patent number: 9511531Abstract: A method of forming a thermoplastic article, comprises steps of: a) positioning at least one preheated first component being hollow and having at least one open end in two co-operating first mold halves; b) extruding a blow-moldable thermoplastic material into the first component and closing the mold halves; and c) blowing the blow-moldable thermoplastic material inside the mold halves to form an article on which the first component is fixedly engaged. The method is simple in implementation, low in cost and easy in modification, and by which a thermoplastic article of varied colors, patterns, materials, and/or functional components being fixedly mounted on its outer surface could be realized.Type: GrantFiled: January 8, 2010Date of Patent: December 6, 2016Assignee: GREAT FORTUNE (HK) LIMITEDInventor: Chi Shing Lam
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Patent number: 9409340Abstract: The present invention is directed to an apparatus for differential cooling of a plastic film tube. The apparatus and method includes the use of a blown film extrusion die that extrudes a plastic film tube upward. An air cooling system applies cooling air across one or more surfaces of the plastic film tube. One or more throttling valves are coupled to a pressurization pump that provides a pressurized working fluid, preferably water. The throttling valves are positioned to project the pressurized working fluid from outlets of the throttling valves towards circular arcs of the plastic film tube, the circular arcs of the plastic film tube being less than the circumference of the plastic film tube to provide a blown film tubular plastic film with controlled gauge variation.Type: GrantFiled: October 27, 2015Date of Patent: August 9, 2016Assignee: Poly-America, L.P.Inventor: Anthony H. Bertrand
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Patent number: 9222200Abstract: A spinning device is disclosed. The spinning device includes a tube body, a sleeve component, a jacket tube and a lid. The tube body has a first through orifice in a vertical direction, the sleeve component has a second through orifice for the tube body to be mounted therein to form a fluid passage in between; the jacket tube has a third through orifice for the sleeve component and the tube body to be mounted therein. A first opening and second opening are formed on the wall of the jacket tube, allowing the second opening to be coupled with the fluid passage. The lid is coupled to one end of the jacket tube, and has a fourth through orifice, allowing the tube body to rotate with respect to the sleeve tube, jacket tube and the lid, thereby making a the hollow fiber having a spiral passage.Type: GrantFiled: December 18, 2013Date of Patent: December 29, 2015Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventor: Chin-Chih Tai
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Patent number: 9168715Abstract: The disclosure describes a device for inflating and cutting a material web. The device can include a web advancement mechanism to advance a material web in a longitudinal path, an inflation mechanism for inserting a fluid into the material web to create one or more inflated pillows, a fluid inlet for providing the fluid to the inflation mechanism, and a cutting mechanism configured to cut the material web in the longitudinal path.Type: GrantFiled: January 6, 2011Date of Patent: October 27, 2015Assignee: PREGIS INNOVATIVE PACKAGING LLCInventors: Thomas D. Wetsch, Thomas F. McNellis
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Publication number: 20150083719Abstract: The invention relates to an extrusion-blow-molded fuel tank (1) of thermoplastic material comprising a tank wall of a composite of various layers obtained in various production operations, at least one first layer comprising at least one shell-shaped supporting shell (8) and a second layer of a thermoplastic material forming an adhesive bond with the supporting shell (8), and the supporting shell (8) having a greater strength than the second layer. The supporting shell (8) forms an inner layer of the tank and the second layer forms an outer skin of the tank, two supporting shells within the tank forming a supporting cage or a supporting housing.Type: ApplicationFiled: March 14, 2013Publication date: March 26, 2015Applicant: Kautex Textron GmbH & Co. KGInventors: Markus Hutzen, Ulrich Karsch, Christoph Mehren
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Publication number: 20140338816Abstract: A ducting and associated method is provide in which the ducting includes a pipe with a thermoplastic or thermoplastic elastomeric layer and a reinforcing layer. The pipe has a curved or bent geometry and the reinforcing layer is made of a composite material based on reinforcement in intimate and direct contact with the subjacent layer. The geometry is obtained by hot forming the inner layer to give the geometry, and the reinforcement is either impregnated with a thermosetting matrix to form a thermosetting composite, or reinforcing fibers are intermixed with thermoplastic fibers or powders, or impregnated with a plastic polymeric coating that is curable chemically. Alternatively, the inner layer is first covered with the reinforcing layer in which the reinforcement includes reinforcing fibers intermixed with a thermoplastic material in the form of fibers, film or powder is blow-molded to give the pipe its final geometry.Type: ApplicationFiled: July 31, 2014Publication date: November 20, 2014Inventors: Jean-Pierre Ciolczyk, Marc Dolez, Bertrand Florentz
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Patent number: 8691038Abstract: The present invention relates to a method of forming a molded article (e.g., 141) from first and second heated and thermoformable thermoplastic sheets (75, 78), which are each respectively formed in situ from first and second thermoplastic compositions (e.g., by means of extrusion). The heated first and second thermoformable sheets are each drawn by reduced pressure into contour matching contact with the interior mold surfaces (14, 32) of separate first and second mold portions (11, 29), so as to form separate first and second profiled thermoplastic sheets (129, 144) within the separate mold portions. The first and second mold portions (11, 29) are positioned towards each other (e.g., together) so as to bring into contact and fuse together contact portions (159, 163) of the first and second profiled thermoplastic sheets (129, 144). Fusion between the contacted contact portions (159, 163) is achieved by means of (e.g.Type: GrantFiled: January 29, 2010Date of Patent: April 8, 2014Assignee: LRM Industries International, Inc.Inventor: Dale E. Polk, Jr.
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Publication number: 20130206775Abstract: The invention relates to a thermoplastic tank (1) with at least one insert part which is provided in the interior of the tank (1) and is inserted into the tank (1) through an opening (3) in a tank wall (2) and is sealed against a peripheral flange (4) provided in the region of the opening (3). The flange (4) is formed integrally with the tank wall (2) and is countersunk therein.Type: ApplicationFiled: July 5, 2011Publication date: August 15, 2013Applicant: KAUTEX TEXTRON GMBH & CO. KGInventors: Timm Heidemeyer, Stefan Lenz, Dieter Schmitz, Volker Treudt
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Patent number: 8491744Abstract: The invention relates to a method for producing a strand-shaped part, wherein a hollow section (16) of metal is extruded, the extruded metal hollow section (16) cools and/or is cooled, and a plastic strand (28) having one or more layers is extruded into the extruded metal hollow section (16) after or during cooling. The plastic strand (28) passes by a dispensing tool (24), exposed to the heat of the extruded metal hollow section (16) of an extruder (34). The dispensing tool is inserted into the metal hollow section (16) and comprises a dispensing outlet (26), which is disposed inside a region of the metal hollow section (16) in which the dispensing tool is cooled in relation to the temperature thereof during extrusion.Type: GrantFiled: August 31, 2007Date of Patent: July 23, 2013Assignee: Uponor Innovation ABInventors: Reinhold Freermann, Ralf Winterstein, Franz-Josef Riesselmann
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Patent number: 8480836Abstract: A double-sided, slip resistant material is produced using a blown film process which produces a film having an interior heat sealable layer, a core layer of flexible polyolefin and an exterior polyolefin elastomer layer in combination with a blowing agent and optionally grit to produce a double-sided slip resistant material. A number of rollers are provided after nip rollers have fused the film together, and which form part of a machine direction orienter (MDO) that is used in line in the manufacturing process to heat, and then cool and condition (anneal and relieve any stresses and/or thickness inconsistencies in the film) prior to the film being wound onto a roll for storage.Type: GrantFiled: January 18, 2010Date of Patent: July 9, 2013Assignee: Multi Technologies Industrial L.L.C.Inventors: George M. Orlych, Mike C. Sullivan
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Patent number: 8475617Abstract: A device for producing a drip irrigation tube comprising an extrusion apparatus for extruding a tube body made from a thermoplastic synthetic material is provided. Metering elements are inserted in the extruded tube body and connected to the tube body. A calibrating device adjusts the tube body to the desired outer shape, and a cooling device cools the tube body. Outlet holes are made in the tube body in the vicinity of the metering elements to permit the passage of water from the tube body during use. A control unit for controlling the device for making outlet holes is provided, and a sensor which upon lifting of the roller during passage of a metering element emits a signal to the control unit which emits a signal to the device for making outlet holes.Type: GrantFiled: March 9, 2010Date of Patent: July 2, 2013Assignee: The Machines Yvonand SAInventor: Eberhard Kertscher
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Patent number: 7713458Abstract: A laminated seamless belt having at least a base layer and an outer layer. The base layer contains a polyester thermoplastic elastomer as its main component. The base layer has a volume resistivity set to not less than 1.0×106(?·cm) nor more than 1.0×1011(?·cm). A volume resistivity of the outer layer is set to not less than 1.0×1011(?·cm) and not less than 10 times as large as that of the base layer. The base layer and the outer layer are formed by laminated extrusion.Type: GrantFiled: November 17, 2006Date of Patent: May 11, 2010Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Masakazu Tanaka, Takayuki Hattori
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Patent number: 7297220Abstract: A method for the production of curved thread-reinforced tubular structures composed of rubber layers and of strengthening layers and an accompanying device. In one aspect, the method includes the application of a first rubber layer to the circumference of mandrels driven forward in a feed direction (X) and winding on of a multiplicity of parallel reinforcing threads, having defined thread angles (?) with respect to the feed axis (x), by means of a bobbin creel, to form a first thread ply. The mandrels are led through a rotating deflection element surrounding the mandrels and the reinforcing threads are guided so as to be distributed on the inner circumference. An application of a covering rubber layer may be performed (after the optionally multiple execution of the previous steps, alone or in combination). The mandrels are led through the deflection element of the bobbin creel eccentrically in the region of the deflection element.Type: GrantFiled: March 24, 2004Date of Patent: November 20, 2007Inventors: Markus Berger, Rainer Oehl, Klaus Binder
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Patent number: 7125466Abstract: A method of preparing a molded cross vehicle beam which includes a hollow blow molded thermoplastic rigid member that is integrally attached to a rigid support, e.g., a U-shaped metal plate, and at least one attachment element, is described. The rigid support (12) has a first surface, a second surface and a plurality of perforations having edges. The attachment element(s) (81, 84) have a first surface, a second surface and a plurality of perforations having edges. The attachment element provides a means of attaching the molded cross vehicle beam to a separate structure (e.g., the A-pillars of an automobile). A thermoplastic parison precursor of the hollow rigid thermoplastic member (15) is blow molded against the first surfaces of the rigid support (12) and the attachment element (81, 84).Type: GrantFiled: December 16, 2003Date of Patent: October 24, 2006Assignee: Bayer MaterialScience LLCInventors: Christopher Cooper, Olaf J. Zoellner
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Patent number: 6849227Abstract: A method of manufacturing a furniture component includes steps of molding a panel component of a flexible compliant plastic, the panel component having a continuous perimeter flange and further having flexible strips extending between portions of the perimeter flange that are shaped to flex to comfortably support a human body part. The method further includes molding a tubular perimeter frame of a reinforced structural plastic different than the flexible compliant plastic onto the panel component, the step of molding the perimeter frame including integrally bonded the perimeter frame to the perimeter flange to stiffen the perimeter flange and support the panel component and further including a gas assist process.Type: GrantFiled: May 17, 2002Date of Patent: February 1, 2005Assignee: Steelcase Development CorporationInventors: Nancy A. Funk, Robert J. Battey, James J. Betcher, Kurt R. Heidmann, Michael J. Kemen
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Publication number: 20040016503Abstract: An apparatus and method for producing a coated wire or other elongated article including a means to extrude a polymer in tubular form around the wire or article and a means to increase the temperature of the wire or article before extrusion of the polymer thereon. The extruded polymer is elongated from the extrusion opening to the elongated article, forming a melt cone, were the relative feeding speed of the heated elongated article and the extrusion rate of the polymer are controlled and with the aid of at least a partial vacuum that is achieved in the extrusion tooling and inside the melt cone the extruded polymer tightly encases the wire achieving a thin polymer coating.Type: ApplicationFiled: July 23, 2002Publication date: January 29, 2004Inventor: Matthew Shawn Stowe
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Patent number: 6641694Abstract: An angioplasty balloon and method of manufacture are provided. The balloon has a working length and a taper each having a substantially equivalent thickness. This allows the balloon to be steered easily through vasculature to the site of a stenosis prior to inflation during an angioplasty procedure. The taper thickness in particular is achieved through use of a specially designed multi-tubular slug which is molded to form the angioplasty balloon of the present invention.Type: GrantFiled: December 22, 1999Date of Patent: November 4, 2003Assignee: Advanced Cardiovascular Systems, Inc.Inventor: Jeong S. Lee
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Publication number: 20030184121Abstract: A system and method for reinforcing at least a portion of a structural member, including at least one hollow carrier, having an exterior shell and an interior portion, which substantially conforms to the dimensions and geometry of the structural member being reinforced; and a lightweight, low density material for filling the interior portion of one or more of the carriers. The material filling one or more of the carriers of the present invention can be a reinforcement material, self-curing material, or a heat activated expandable material. The carrier can be produced by blow molding or rotational molding and has an adhesive material disposed along at least a portion of the exterior shell used to place, adhere, and affix the carrier to a targeted portion of the structural member selected to be structurally reinforced.Type: ApplicationFiled: April 25, 2003Publication date: October 2, 2003Applicant: L&L Products, Inc.Inventors: Michael J. Czaplicki, Jon Riley
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Publication number: 20030139762Abstract: An angioplasty balloon and method of manufacture are provided. The balloon has a working length and a taper each having a substantially equivalent thickness. This allows the balloon to be steered easily through vasculature to the site of a stenosis prior to inflation during an angioplasty procedure. The taper thickness in particular is achieved through use of a specially designed multi-tubular slug which is molded to form the angioplasty balloon of the present invention.Type: ApplicationFiled: February 3, 2003Publication date: July 24, 2003Inventor: Jeong S. Lee
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Patent number: 6579401Abstract: An apparatus for forming a polymeric pressure vessel includes two, coaxial plastic extruders separated by a hole-forming laser and connected to a variable die, a vacuum/blow molding apparatus, a fusing device, a braiding mechanism, and an overcoat applicator. The first extruder forms a tubular core, and the laser forms axially-spaced apertures in the core. The second extruder forms an outer tube coaxially over the tubular core and the variable die is alternately opened and closed to form parisons of increased material at axially-spaced locations along the outer tube. The parisons are moved into the molding apparatus and are expanded in a vacuum/blow molding process into hollow chambers of preferably ellipsoidal shape. The fusing device fuses the outer tube to the tubular core at locations between the spaced-apart hollow chambers, the braiding mechanism then applies a layer of interwoven reinforcing filament fiber, and the overcoat applicator applies a protective polymeric coating over the fiber layer.Type: GrantFiled: November 1, 2000Date of Patent: June 17, 2003Assignee: Mallinckrodt, Inc.Inventors: John I. Izuchukwu, Stan A. Sanders
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Patent number: 6521305Abstract: Products in the form of cushioning devices made from flexible membranes employing at least one layer including thermoplastic urethane and at least one layer of a copolymer of ethylene and vinyl alcohol are inflatable to a relatively high pressure. The cushioning devices maintain the internal inflatant pressure for extended periods of time by employing a phenomenon referred to in the industry as diffusion pumping. Ideally, the cushioning devices of the present invention can be permanently inflated with gases such as nitrogen or air.Type: GrantFiled: September 14, 1999Date of Patent: February 18, 2003Inventors: Paul H. Mitchell, James C. Sell, Jr., Henry W. Bonk
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Publication number: 20020146481Abstract: The present invention relates to a process for the production of hollow plastic articles, said process comprising the following steps:Type: ApplicationFiled: December 21, 2001Publication date: October 10, 2002Inventor: Andreas Wust
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Patent number: 6266943Abstract: A separable laminated container (A) of the present invention comprises an outer layer (1) made of synthetic resin and having an air suction hole (10) and an inner layer (2) made of synthetic resin and separably laminated on the inside of the outer layer, the inner layer having a portion previously separated from the outer layer just around the air suction hole. The air suction hole can be formed by driving a punch into the outer layer at a neck (4) of the separable laminated container from the outside, and punching just the outer layer leaving the inner layer behind. The portion of the inner layer previously separated from the outer layer may be left in the inwardly extended state. The inner layer is preferably made of synthetic resin having flexural modules of less than 10,000 kg/cm2.Type: GrantFiled: November 1, 1996Date of Patent: July 31, 2001Assignee: Yoshino Kogyosho Co., Ltd.Inventors: Tsugio Nomoto, Takayuki Goto, Masashi Yoneyama, Yoshio Shibano, Yoshio Akiyama
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Publication number: 20010006712Abstract: A hose of impermeability has a wall corrugated along at least a part of its length, and formed by an inner thin resin layer, a laminated layer including a metal film, or a layer formed by a metal film, and an outer thin resin layer. It has a very high fluid impermeability owing to its wall layer including or formed by a metal film, and is also very flexible, capable of absorbing vibration, light in weight and strong. A tubular inner thin resin layer is formed by extrusion as the innermost layer of a multi-layered hose wall, and a laminated tape including a metal film, or simply a metal film is spirally wound or longitudinally lapped about the inner resin layer. An outer thin resin layer is formed about a layer formed by the laminated tape, or metal film, and the whole is at least partly corrugated. Alternatively, corrugation is done before an outer thin resin layer is formed by electrostatic powder coating.Type: ApplicationFiled: December 20, 2000Publication date: July 5, 2001Inventors: Motoshige Hibino, Kazutaka Katayama, Ayumu Ikemoto, Hidehito Ikeda, Hiroaki Ito
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Patent number: 6245183Abstract: A multi-layer tube comprises a metal tube having an outer surface and a zinc layer bonded to the metal tube outer surface, wherein the zinc layer is selected from the group consisting of zinc plating, zinc nickel alloys, zinc cobalt alloys, zinc aluminum alloys, and mixtures thereof. A surface treatment layer is bonded to the zinc layer, wherein the surface treatment layer is selected from the group consisting of a zinc/aluminum/rare earth alloy, phosphate, chromate and mixtures thereof. A first polymeric layer is bonded to the surface treatment layer, wherein the first polymeric layer is selected from the group consisting of a thermoplastic elastomer, an ionomer, a nylon, a fluoropolymer, and mixtures thereof. A second polymeric layer is bonded to the first polymeric layer, wherein the second polymeric layer is selected from the group consisting of a nylon, a thermoplastic elastomer, a fluoropolymer, and mixtures thereof.Type: GrantFiled: May 26, 1995Date of Patent: June 12, 2001Assignee: ITT Manufacturing Enterprises, Inc.Inventors: Ralph A. Iorio, Robert M. Davie, James D. McDaniel, Frank L. Mitchell, Tao Nie
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Patent number: 6171423Abstract: A process for fabricating a composite vessel includes the steps of: A) preforming (e.g., by winding fiber and at least one thermoplastic substance onto a thermoplastic liner) a thermoplastic shell which has at least one opening for access to the interior; B) extruding a circular cross section of a fluid parison of thermoplastic material (which preferably is chosen to have a melting point lower than that of the thermoplastic shell) into the interior of the thermoplastic shell through the opening; C) in a mold, applying at least one force (such as gas under pressure) which tends to urge the fluid parison toward the interior walls of the thermoplastic shell (which may be preheated prior to introduction into the mold) such that the fluid parison imparts heat to the thermoplastic shell; D) continuing step C) until the thermoplastic shell and the fluid parison consolidate to form a composite vessel; E) cooling the vessel until it is solidified; and F) removing the vessel from the mold.Type: GrantFiled: September 11, 1998Date of Patent: January 9, 2001Assignee: Essef CorporationInventors: James C. Murphy, Gerald S. Boyce, Erik Coeckelbergs