Patents by Inventor David Edgar Hauber
David Edgar Hauber has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11873947Abstract: A method of manufacturing a high-pressure composite pressure vessel for high-pressure being at or above 70 bar (1000 PSI or 7 MPa) includes providing an expandable core vessel defining a hoop section between end domes. An aligned discontinuous fiber composite material is wrapped over the expandable core vessel aligning with a plurality of load paths present in the expandable core vessel being over the hoop section and end domes. The aligned discontinuous fiber composite material has fibers in a prepreg tape that are at least 5 mm in length to 100 mm in length or less. Next, a continuous fiber-reinforced composite is wrapped over the aligned discontinuous fiber-reinforced composite along the hoop section and not wrapped along the end domes. The expandable core vessel may be pressurized and heated to consolidate the composite overwrap. Finally, the vessel is cooled under pressure resulting in the high-pressure composite pressure vessel.Type: GrantFiled: May 20, 2022Date of Patent: January 16, 2024Assignee: Trelleborg Sealing Solutions Germany GmbHInventor: David Edgar Hauber
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Publication number: 20230387768Abstract: A method of manufacturing a stator sleeve starts with wrapping a cylindrical mandrel with a heated prepreg tape using automated fiber placement. The prepreg tape has a continuous fiber reinforcement within a polymer matrix. Next, cool and remove the cylindrical mandrel from the wrapped prepreg tape resulting in an unfinished cylindrically shaped stator sleeve. Each end of the unfinished stator sleeve is trimmed. Next, abut a first and a second end ring respectively against a first and a second ends of the trimmed stator sleeve using a cylindrical fixture tool. The first and second end rings are the same material as the polymer matrix of the prepreg tape. Finally, laser welding or melt bonding the first and second rings to the first and second ends of the trimmed stator sleeve.Type: ApplicationFiled: May 23, 2023Publication date: November 30, 2023Applicant: Trelleborg Sealing Solutions Germany GmbHInventors: David Edgar Hauber, Graham Ostrander, Timothy Miller
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Patent number: 11760038Abstract: A rib-stiffened composite structure includes a composite face sheet having a continuous reinforcing fiber in a polymer matrix. A polymer core is in a grid pattern disposed on the composite face sheet, the grid pattern having a first series of paths crossing over a second series of paths. Material voids are formed in the spaces between the series of paths. A composite rib-cap is disposed upon an upper surface of the polymer core. The composite rib-cap includes a continuous reinforcing fiber in a polymer matrix. The fibers of the continuous reinforcing fiber of the polymer matrix of the composite rib cap are oriented in a direction along the first and second series of paths of the grid pattern of the extruded polymer core.Type: GrantFiled: January 6, 2022Date of Patent: September 19, 2023Assignee: Trelleborg Sealing Solutions Germany GmbHInventor: David Edgar Hauber
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Publication number: 20230146363Abstract: A composite armor includes a ceramic substrate defining a frontside opposite a backside, where a thickness is defined extending between the frontside and the backside. A first tension-wrapped thermoplastic composite overwind is wrapped around the ceramic substrate about the frontside and backside. A first portion of the first overwind overlaps a second portion of the first overwind. The first and second portions of the first overwind are fixedly attached to one another utilizing a first localized heating. The first overwind includes a first tensile pretension. A backing is disposed about the backside of the ceramic substrate attached to the first overwind. The ceramic substrate has a higher modulus of elasticity in comparison to the overwind. The first overwind has a higher modulus of elasticity in comparison to the backing.Type: ApplicationFiled: November 9, 2021Publication date: May 11, 2023Applicant: Trelleborg Sealing Solutions Germany GmbHInventor: David Edgar Hauber
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Patent number: 11597057Abstract: Disclosed embodiments provide automated fiber placement techniques for fabrication of parts made from composite materials. A peening system with multiple pins provides compaction over irregular surfaces, providing superior performance as compared with traditional compaction rollers. The apparatus that carries out the techniques include a tape dispensing system, a heating system, a peening system, a processor and a memory coupled to the processor. The memory contains instructions that when executed by the processor perform the steps of: dispensing a first ply of thermoplastic composite tape over a mandrel; dispensing a second ply of thermoplastic composite tape on the first ply; and peening the second ply onto the first ply, such that the second ply is bonded to the first ply.Type: GrantFiled: January 30, 2020Date of Patent: March 7, 2023Assignee: Trelleborg Sealing Solutions Germany GmbHInventor: David Edgar Hauber
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Publication number: 20220381401Abstract: A method of manufacturing a high-pressure composite pressure vessel for high-pressure being at or above 70 bar (1000 PSI or 7 MPa) includes providing an expandable core vessel defining a hoop section between end domes. An aligned discontinuous fiber composite material is wrapped over the expandable core vessel aligning with a plurality of load paths present in the expandable core vessel being over the hoop section and end domes. The aligned discontinuous fiber composite material has fibers in a prepreg tape that are at least 5 mm in length to 100 mm in length or less. Next, a continuous fiber-reinforced composite is wrapped over the aligned discontinuous fiber-reinforced composite along the hoop section and not wrapped along the end domes. The expandable core vessel may be pressurized and heated to consolidate the composite overwrap. Finally, the vessel is cooled under pressure resulting in the high-pressure composite pressure vessel.Type: ApplicationFiled: May 20, 2022Publication date: December 1, 2022Applicant: Trelleborg Sealing Solutions Germany GmbHInventor: David Edgar Hauber
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Publication number: 20220219408Abstract: A rib-stiffened composite structure includes a composite face sheet having a continuous reinforcing fiber in a polymer matrix. A polymer core is in a grid pattern disposed on the composite face sheet, the grid pattern having a first series of paths crossing over a second series of paths. Material voids are formed in the spaces between the series of paths. A composite rib-cap is disposed upon an upper surface of the polymer core. The composite rib-cap includes a continuous reinforcing fiber in a polymer matrix. The fibers of the continuous reinforcing fiber of the polymer matrix of the composite rib cap are oriented in a direction along the first and second series of paths of the grid pattern of the extruded polymer core.Type: ApplicationFiled: January 6, 2022Publication date: July 14, 2022Applicant: Trelleborg Sealing Solutions Germany GmbHInventor: David Edgar Hauber
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Publication number: 20200247035Abstract: Disclosed embodiments provide automated fiber placement techniques for fabrication of parts made from composite materials. A peening system with multiple pins provides compaction over irregular surfaces, providing superior performance as compared with traditional compaction rollers. The apparatus that carries out the techniques include a tape dispensing system, a heating system, a peening system, a processor and a memory coupled to the processor. The memory contains instructions that when executed by the processor perform the steps of: dispensing a first ply of thermoplastic composite tape over a mandrel; dispensing a second ply of thermoplastic composite tape on the first ply; and peening the second ply onto the first ply, such that the second ply is bonded to the first ply.Type: ApplicationFiled: January 30, 2020Publication date: August 6, 2020Applicant: Trelleborg Sealing Solutions US, Inc.Inventor: David Edgar Hauber
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Patent number: 6773773Abstract: A fiber reinforced thermoplastic pipe member is obtained by a novel continuous process in which the reinforcement fibers are wrapped about the outer pipe surface in an unbonded condition while the pipe member continuously moves in a linear direction and which is followed by sufficient heating of the moving fiber wrapped pipe member to cause thermal bonding between the applied fibers and the pipe member. Automated apparatus for carrying out the continuous process is also disclosed.Type: GrantFiled: June 14, 1999Date of Patent: August 10, 2004Assignee: ADC Acquisition CompanyInventor: David Edgar Hauber
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Publication number: 20030209312Abstract: A fiber reinforced thermoplastic pipe member is obtained by a novel continuous process in which the reinforcement fibers are wrapped about the outer pipe surface in an unbonded condition while the pipe member continuously moves in a linear direction and which is followed by sufficient heating of the moving fiber wrapped pipe member to cause thermal bonding between the applied fibers and the pipe member. Automated apparatus for carrying out the continuous process is also disclosed.Type: ApplicationFiled: May 19, 2003Publication date: November 13, 2003Inventor: David Edgar Hauber
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Publication number: 20030201060Abstract: A fiber reinforced thermoplastic pipe member is obtained by a novel continuous process in which the reinforcement fibers are wrapped about the outer pipe surface in an unbonded condition while the pipe member continuously moves in a linear direction and which is followed by sufficient heating of the moving fiber wrapped pipe member to cause thermal bonding between the applied fibers and the pipe member. Automated apparatus for carrying out the continuous process is also disclosed.Type: ApplicationFiled: May 19, 2003Publication date: October 30, 2003Inventor: David Edgar Hauber
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Publication number: 20020054968Abstract: A fiber reinforced thermoplastic pipe member is obtained by a novel continuous process in which the reinforcement fibers are wrapped about the outer pipe surface in an unbonded condition while the pipe member continuously moves in a linear direction and which is followed by sufficient heating of the moving fiber wrapped pipe member to cause thermal bonding between the applied fibers and the pipe member. Automated apparatus for carrying out the continuous process is also disclosed.Type: ApplicationFiled: June 14, 1999Publication date: May 9, 2002Inventor: DAVID EDGAR HAUBER
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Patent number: 6164702Abstract: A continuous fiber reinforced thermoplastic pipe coupling is disclosed having improved resistance to applied stress when used with pipe lengths being joined together. The fiber reinforcement is aligned during placement in a particular manner and placed at a predetermined fiber angles dictated mechanical forces being applied such as by internal fluid pressures in the coupled pipe lengths.Type: GrantFiled: June 7, 1999Date of Patent: December 26, 2000Assignee: ADC acquisition CompanyInventors: David Edgar Hauber, Robert John Langone, James Andrew Mondo