Patents by Inventor Peter Popper
Peter Popper 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: 6107220Abstract: The invention comprises a flat or shaped fabric structure of yarn groups each yarn group comprising a plurality of yarn subgroups, each group positioned for covering an area. The structure comprises at least a first group of flexible yarns densely covering an area , the yarns within the first group following substantially parallel paths in a first direction and forming a stack with at least a second group of flexible yarns densely covering substantially the same area, the yarns within the second group following substantially parallel paths in a second direction; the yarns in the first group arranged to cross the yarns in the second group, optionally containing other groups of yarn, the yarns in the upper-most subgroup of the stack are connected to the yarns in the bottom-most subgroup of the stack either directly of through the yarns in other subgroups providing an interlaced fabric structure.Type: GrantFiled: October 17, 1997Date of Patent: August 22, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Peter Popper, William Charles Walker, Albert S. Tam, Paul Wesley Yngve, James K. Odle, George Yeaman Thomson, Jr.
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Patent number: 5906877Abstract: This invention provides moisture stable tuftstring carpet assemblies. The pile surface structure comprises a moisture stable backing substrate, a plurality of elongated pile articles each comprising an elongated, moisture stable support strand having bonded thereto a plurality of "U" shaped bundles of multifilament yarn. The pile articles are bonded to the backing substrate. Different backing substrates and support strands may be used.Type: GrantFiled: March 5, 1996Date of Patent: May 25, 1999Assignee: E. I. du Pont de Nemours & Co.Inventors: Peter Popper, Rashi Akki, Lap-Tak Andrew Cheng, Carmen Anoish Covelli, Sassan Hojabr, George Kevork Kodokian, Vijayendra Kumar, James K. Odle, Kalika Ranjan Samant, Caroline Tjhen Shibata, Wae-Hai Tung, Gregory Paul Weeks, Paul Wesley Yngve
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Patent number: 5644909Abstract: An alternate twist plied yarn formed from a plurality of strands of singles yarn twisted in alternating directions in lengthwise intervals of first half-cycles of twist at a predetermined twist level followed by second half-cycles of twist at the same twist level with reversal nodes therebetween, the singles twisted yarns being ply-twisted together in alternating directions in lengthwise intervals of first half-cycles of ply-twist followed by second half-cycles of ply-twist, there being a bond formed adjacent each node wherein the first half-cycle of ply-twist is located within the bond and the second half-cycle of ply-twist originates at one end of the bond, the twist level in the singles twisted yarn is between 25% in the same direction and 60% in the opposite direction of the twist applied to the singles yarns before plying.Type: GrantFiled: September 10, 1996Date of Patent: July 8, 1997Assignee: E.I. Du Pont de Nemours and CompanyInventors: Warren Francis Knoff, Robert William McAllister, Peter Popper, Steven Kikuo Shibata, Robert Edward Taylor, Paul Wesley Yngve
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Patent number: 5557915Abstract: An alternate twist plied yarn formed from a plurality of strands of singles yarn twisted in alternating directions in lengthwise intervals of first half-cycles of twist at a predetermined twist level followed by second half-cycles of twist at the same twist level with reversal nodes therebetween, the singles twisted yarns being ply-twisted together in alternating directions in lengthwise intervals of first half-cycles of ply-twist followed by second half-cycles of ply-twist, there being a bond formed adjacent each node wherein the first half-cycle of ply-twist is located within the bond and the second half-cycle of ply-twist originates at one end of the bond, the twist level in the singles twisted yarn is between 25% in the same direction and 60% in the opposite direction of the twist applied to the singles yarns before plying.Type: GrantFiled: November 14, 1994Date of Patent: September 24, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Warren F. Knoff, Robert W. McAllister, Peter Popper, Steven K. Shibata, Robert E. Taylor, Paul W. Yngve
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Patent number: 5547732Abstract: An elongated pile article having a support strand for attachment to a plurality of yarn bundles, the yarn bundles including a dense portion with the filaments bonded to each other and bonded to the support strand, pile surface structure comprised of a plurality of elongated pile articles placed one next to the other, and a method and apparatus for making the elongated pile article.Type: GrantFiled: May 15, 1995Date of Patent: August 20, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Donald W. Edwards, James K. Odle, Peter Popper, Donald M. Sadler, Todd J. Savidge, Harold F. Staunton, William C. Walker, Paul W. Yngve
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Patent number: 5501250Abstract: Method to delete and reintroduce individual yarns as needed when they are being fed to a textile process by cutting an individual yarn, that is being forwarded to the process, rapidly to prevent producing a disruptive tension change in the process or in other yarns being forwarded to the process to produce an upstream cut end of an individual yarn; holding the upstream cut end of said individual yarn in an elongated condition at a ready position for reintroducing to the process; and reintroducing said yarn at said ready position to the textile process according to the following steps; metering said individual yarn from said source at a controlled rate; passing said cut end of yarn with a first individual yarn forwarding jet for forwarding said cut end from said ready position and maintaining said cut end of yarn in an elongated condition during said metering; directing said elongated, cut end of yarn in a path past an individual yarn cutter; passing for forwarding said elongated cut end of yarn from said cuttType: GrantFiled: November 22, 1994Date of Patent: March 26, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Donald W. Edwards, Peter Popper, David P. Rule, William C. Walker
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Patent number: 5498459Abstract: An elongated pile article having a support strand for attachment to a plurality of yarn bundles, the yarn bundles including a dense portion with the filaments bonded to each other and bonded to the support strand, pile surface structure comprised of a plurality of elongated pile articles placed one next to the other, and a method and apparatus for making the elongated pile article.Type: GrantFiled: May 17, 1995Date of Patent: March 12, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Ahmed M. Mokhtar, Peter Popper, William C. Walker, Paul W. Yngve
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Patent number: 5472762Abstract: An elongated pile article having a support strand for attachment to a plurality of yarn bundles, the yarn bundles including a dense portion with the filaments bonded to each other and bonded to the support strand, pile surface structure comprised of a plurality of elongated pile articles placed one next to the other, and a method and apparatus for making the elongated pile article.Type: GrantFiled: February 22, 1993Date of Patent: December 5, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: Donald W. Edwards, James K. Odle, Peter Popper, Donald M. Sadler, Todd J. Savidge, Harold F. Staunton, William C. Walker, Paul W. Yngve
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Patent number: 5470629Abstract: An elongated pile article having a support strand for attachment to a plurality of yarn bundles, the yarn bundles including a dense portion with the filaments bonded to each other and bonded to the support strand, pile surface structure comprised of a plurality of elongated pile articles placed one next to the other, and a method and apparatus for making the elongated pile article.Type: GrantFiled: October 28, 1994Date of Patent: November 28, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: Ahmed M. Mokhtar, Peter Popper, Wiliam C. Walker
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Patent number: 5470656Abstract: This invention is a moisture-stable, flexible, structural adhesive strand which is suitable for use in the manufacture of an elongated pile article. The strand of this invention is comprised of a core of reinforcing multifilaments and a sheath of moisture-sensitive thermoplastic resin. The cross-sectional area ratio of reinforcing filaments to thermoplastic resin is in the range of about 0.04 to less than 0.3.Type: GrantFiled: July 5, 1994Date of Patent: November 28, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: Jeffrey L. Kennard, George K. Kodokian, Peter Popper, Kalika R. Samant
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Patent number: 5320696Abstract: A braided in-situ consolidated structure of fiber reinforced thermoplastic resin strands is formed by braiding the strands on a mandrel and then advancing the mandrel and the braided structure as it is formed continuously through a heating zone to heat the resin to a flowable condition then cooling the structure as it leaves the zone. Pressure may be applied or developed against the braided structure during its formation.Type: GrantFiled: October 31, 1990Date of Patent: June 14, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventors: Ronald F. McConnell, Peter Popper
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Patent number: 5168005Abstract: An ion exchange membrane reinforced with a multiaxial, preferably triaxial, yarn system and an electrolysis process using the membrane in its highly-fluorinated cation exchange form.Type: GrantFiled: December 21, 1990Date of Patent: December 1, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventors: James T. Keating, Peter Popper
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Patent number: 5146835Abstract: A braided insitu consolidated structure of fiber reinforced thermoplastic resin strands is formed by braiding the strands on a mandrel and then advancing the mandrel and the braided structure as it is formed continuously through a heating zone to heat the resin to a flowable condition then cooling the structure as it leaves the zone. Pressure may be applied or developed against the braided structure during its formation.Type: GrantFiled: March 8, 1989Date of Patent: September 15, 1992Assignee: E. I. duPont de Nemours and CompanyInventors: Ronald F. McConnell, Peter Popper
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Patent number: 5012636Abstract: A process for making alternate S and Z twist plied yarn from individual singles yarns includes the steps of tensioning the singles yarns as they move in a path through the process, twisting the individual yarns in either an S or Z direction, stopping the forward movement of the yarn, then bonding the ply-twisted yarns at a node while applying twist, stopping the twisting operation, then repeating the procedure while twisting in the opposite direction.Type: GrantFiled: March 13, 1989Date of Patent: May 7, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventors: Donald E. Hallam, Peter Popper, Harold F. Staunton, Paul W. Yngve
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Patent number: 5003763Abstract: A process for making alternate S and Z twist plied yarn from individual singles yarns includes the steps of tensioning the singles yarns as they move in a path through the process, twisting the individual yarns in either an S or Z direction, stopping the forward movement of the yarn, then bonding the ply-twisted yarns at a node while applying twist, stopping the twisting operation, then repeating the procedure while twisting in the opposite direction.Type: GrantFiled: August 6, 1990Date of Patent: April 2, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventors: Donald E. Hallam, Peter Popper, Harold F. Staunton, Robert E. Taylor, Paul W. Yngve
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Patent number: 4976812Abstract: A braided insitu consolidated structure of fiber reinforced thermoplastic resin strands is formed by braiding the strands on a mandrel and then advancing the mandrel and the braided structure as it is formed continuously through a heating zone to heat the resin to a flowable condition then cooling the structure as it leaves the zone. Pressure may be applied or developed against the braided structure during its formation.Type: GrantFiled: December 4, 1989Date of Patent: December 11, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventors: Ronald F. McConnell, Peter Popper
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Patent number: 4873821Abstract: A process for making alternate S and Z twist plied yarn from individual singles yarns includes the steps of tensioning the singles yarns as they move in a path through the process, twisting the individual yarns in either an S or Z direction, stopping the forward movement of the yarn, then bonding the ply-twisted yarns at a node while applying twist, stopping the twisting operation, then repeating the procedure while twisting in the opposite direction.Type: GrantFiled: April 29, 1988Date of Patent: October 17, 1989Assignee: E. I. Du Pont de Nemours and CompanyInventors: Donald E. Hallam, Peter Popper, Harold F. Staunton, Robert E. Taylor, Paul W. Yngve
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Patent number: 4860610Abstract: A centrifuge rotor is fabricated of a stacked plurality of tiers where each tier is formed from a stacked array of wound arms. Each arm is formed from an array of layered turns of anisotropic fibers having parallel side portions connected through curved end turn portions.Type: GrantFiled: January 27, 1988Date of Patent: August 29, 1989Assignee: E. I. Du Pont de Nemours and CompanyInventors: Peter Popper, William E. Velvel
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Patent number: 4719837Abstract: A complex braided composite structure is formed of axial and braiding yarns using an interlacing pattern which allows all braiding yarn reversals to occur outside a multi-layer array of axial yarns concurrently at one location in the pattern thus allowing free manipulation of the yarns for forming complex shapes.Type: GrantFiled: April 17, 1986Date of Patent: January 19, 1988Assignee: E. I. DuPont De Nemours and CompanyInventors: Ronald F. McConnell, Peter Popper
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Patent number: RE36372Abstract: An elongated pile article having a support strand for attachment to a plurality of yarn bundles, the yarn bundles including a dense portion with the filaments bonded to each other and bonded to the support strand, pile surface structure comprised of a plurality of elongated pile articles placed one next to the other, and a method and apparatus for making the elongated pile article.Type: GrantFiled: November 26, 1997Date of Patent: November 2, 1999Assignee: E. I. du Pont de Nemours and CompanyInventors: Donald William Edwards, James Kenton Odle, Peter Popper, Donald Montgomery Sadler, Harold Francis Staunton, William Charles Walker, Paul Wesley Yngve, Todd James Savidge