Patents Represented by Attorney, Agent or Law Firm Carol A. Lewis White
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Patent number: 8231957Abstract: Improved expanded PTFE materials and improved gasket materials made therefrom, the gaskets being capable of forming a seal with greater bolt load retention than is possible with existing PTFE gaskets. The expanded PTFE membranes of the invention can be tailored to exhibit a matrix tensile strength in at least one direction of at least 25,000 psi, a matrix tensile strength ratio in two orthogonal directions of between 0.25 and 4, an orientation index of 50° or less, and a density of 2.0 g/cc or less. The improved gaskets exhibit improved mechanical properties such as high bolt load retention, low creep, high tensile strength, low stress to seal and high crystallinity index.Type: GrantFiled: October 9, 2007Date of Patent: July 31, 2012Assignee: Gore Enterprise Holdings, Inc.Inventors: Christopher Bowen, Kevin Edward Dove, Carl Jones, Raymond B. Minor
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Patent number: 8158235Abstract: Improved expanded PTFE materials and improved gasket materials made therefrom, the gaskets being capable of forming a seal with greater bolt load retention than is possible with existing PTFE gaskets. The expanded PTFE membranes of the invention can be tailored to exhibit a matrix tensile strength in at least one direction of at least 25,000 psi, a matrix tensile strength ratio in two orthogonal directions of between 0.25 and 4, an orientation index of 50° or less, and a density of 2.0 g/cc or less. The improved gaskets exhibit improved mechanical properties such as high bolt load retention, low creep, high tensile strength, low stress to seal and high crystallinity index.Type: GrantFiled: October 9, 2007Date of Patent: April 17, 2012Assignee: W. L. Gore & Associates, Inc.Inventors: Christopher Bowen, Kevin Edward Dove, Carl Jones, Raymond B. Minor
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Patent number: 8048111Abstract: Unique PTFE structures comprising islands of PTFE attached to an underlying expanded polytetrafluoroethylene (ePTFE) structure and to methods of making such structures is disclosed. The ePTFE material may or may not have been exposed to amorphous locking temperatures. These unique structures exhibit islands of PTFE attached to and raised above the expanded PTFE structures.Type: GrantFiled: October 1, 2007Date of Patent: November 1, 2011Assignee: Gore Enterprise Holdings, Inc.Inventors: David Isaac Lutz, Norman Ernest Clough
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Patent number: 8037550Abstract: A stretchable chemical protective material is described comprising a selectively permeable chemical protective film and an elastic textile. Further described are methods for making a stretchable chemical protective material and methods of using the same. Materials made from these methods may have improved flex durability. Garments made from these materials may have improved heat loss.Type: GrantFiled: June 17, 2008Date of Patent: October 18, 2011Assignee: Gore Enterprise Holdings, Inc.Inventor: Mukesh K. Jain
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Patent number: 7943003Abstract: A low stress to seal, unitary gasket tape is provided that is particularly suited for use in form-in-place gaskets. The gasket tape preferably comprises at least two joined porous expanded polytetrafluoroethylene (ePTFE) tapes aligned along tape side surfaces and a substantially air impermeable layer there between. The plane of expansion of the ePTFE is substantially parallel to the flange surface providing longitudinal and transverse strength. The substantially air impermeable layer prevents fluid from permeating through the gasket in the radial direction.Type: GrantFiled: January 5, 2007Date of Patent: May 17, 2011Assignee: Gore Enterprise Holdings, Inc.Inventor: Kevin E. Dove
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Patent number: 7740020Abstract: Unique PTFE structures comprising islands of PTFE attached to an underlying expanded polytetrafluoroethylene (ePTFE) structure and to methods of making such structures is disclosed. The ePTFE material may or may not have been exposed to amorphous locking temperatures. These unique structures exhibit islands of PTFE attached to and raised above the expanded PTFE structures.Type: GrantFiled: October 2, 2009Date of Patent: June 22, 2010Assignee: Gore Enterprise Holdings, Inc.Inventors: David Isaac Lutz, Norman Ernest Clough
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Patent number: 7736739Abstract: Unique PTFE structures comprising islands of PTFE attached to an underlying expanded polytetrafluoroethylene (ePTFE) structure and to methods of making such structures is disclosed. The ePTFE material may or may not have been exposed to amorphous locking temperatures. These unique structures exhibit islands of PTFE attached to and raised above the expanded PTFE structures.Type: GrantFiled: October 2, 2009Date of Patent: June 15, 2010Assignee: Gore Enterprise Holdings, Inc.Inventors: David Isaac Lutz, Norman Ernest Clough
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Patent number: 7631364Abstract: A protective garment ensemble comprising a suit having arm-receiving and leg-receiving portions, a hood portion and an opening adjacent the hood opening through which the suit can be donned and doffed and which mates with a removable face portion, the ensemble having mating fastener components around the suit opening and the face portion to form a seal between the suit and the removable face portion.Type: GrantFiled: July 28, 2004Date of Patent: December 15, 2009Assignee: Gore Enterprise Holdings, Inc.Inventors: Gregory D. Culler, Joanne G. Pheris
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Patent number: 7615282Abstract: Unique PTFE structures comprising islands of PTFE attached to an underlying expanded polytetrafluoroethylene (ePTFE) structure and to methods of making such structures is disclosed. The ePTFE material may or may not have been exposed to amorphous locking temperatures. These unique structures exhibit islands of PTFE attached to and raised above the expanded PTFE structures.Type: GrantFiled: November 3, 2008Date of Patent: November 10, 2009Assignee: Gore Enterprise Holdings, Inc.Inventors: David Isaac Lutz, Norman Ernest Clough
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Patent number: 7521010Abstract: A novel densified fluoropolymer article is described which has a water vapor permeation of about 0.015 g-mm/m2/day or less, and preferably has a matrix tensile strength of at least 10,000 psi in two orthogonal directions. The articles are made by compressing expanded porous PTFE at pressures, temperatures and times which result in elimination of the pores, and subsequent stretching above the crystalline melt temperature.Type: GrantFiled: November 6, 2007Date of Patent: April 21, 2009Assignee: Gore Enterprise Holdings, Inc.Inventors: Michael E. Kennedy, Donald L. Hollenbaugh, Jr.
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Patent number: 7445843Abstract: Unique PTFE structures comprising islands of PTFE attached to an underlying expanded polytetrafluoroethylene (ePTFE) structure and to methods of making such structures is disclosed. The ePTFE material may or may not have been exposed to amorphous locking temperatures. These unique structures exhibit islands of PTFE attached to and raised above the expanded PTFE structures.Type: GrantFiled: October 1, 2007Date of Patent: November 4, 2008Assignee: Gore Enterprise Holdings, Inc.Inventors: David Isaac Lutz, Norman Ernest Clough
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Patent number: 7442352Abstract: Process for removing sulfur oxides, mercury vapor, and fine particulate matters from industrial flue gases that contain such pollutants. Pollutants are removed by modules, which contain microporous adsorbent (i.e., sorbent) material held within a polymer matrix. The composite material that contains the microporous absorbent material held within a polymer matrix removes sulfur oxides by converting them into high concentration sulfuric acids. SULFURIC acid produced inside the composite material is automatically expelled onto the external surfaces of the composite material and is drained into an acid reservoir together with the fine particulate mailers which are washed from the external surfaces of the composite material by the constant dripping of the sulfuric acid along the external surfaces of the composite material.Type: GrantFiled: June 19, 2004Date of Patent: October 28, 2008Assignee: Gore Enterprise Holdings, Inc.Inventors: Xiao-Chun Lu, Xiaoqun Wu
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Patent number: 7434272Abstract: Liquidproof seams are formed between laminates, most preferably those having a complex textile structure on the sealing side of the laminate, where at least a portion of the complex textile in the sealing region is removed, such as by skiving, to reduce the thickness in the seam, or sealing region, prior to the creation of a durably sealed liquidproof seam.Type: GrantFiled: August 31, 2006Date of Patent: October 14, 2008Assignee: Gore Enterprise Holdings, Inc.Inventors: Gregory E. Hannon, William G. Hardie, Timothy J. Smith
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Patent number: 7356946Abstract: Liquidproof seams are formed between laminates, most preferably those having a complex textile structure on the sealing side of the laminate, where at least a portion of the complex textile in the sealing region is removed, such as by skiving, to reduce the thickness in the seam, or sealing region, prior to the creation of a durably sealed liquidproof seam.Type: GrantFiled: October 14, 2004Date of Patent: April 15, 2008Assignee: Gore Enterprise Holdings, Inc.Inventors: Gregory E. Hannon, William G. Hardie, Timothy J. Smith
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Patent number: 7306729Abstract: Novel porous PTFE membranes are described possessing a unique combination of high strength, low flow resistance, and small pore size. Additionally, unique constructions with superior filtration and venting properties incorporating porous PTFE membranes are described.Type: GrantFiled: January 18, 2006Date of Patent: December 11, 2007Assignee: Gore Enterprise Holdings, Inc.Inventors: John E. Bacino, Alex R. Hobson, Jason J. Strid
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Patent number: 7300500Abstract: An adsorbent molded article comprising granular absorbant and binder having sustained adsorption over an indefinite period; an adsorbent unit employing said adsorbent molded article; and a housing employing said adsorbent molded article or adsorbent unit.Type: GrantFiled: October 7, 2004Date of Patent: November 27, 2007Assignee: Japan Gore-Tex, Inc.Inventors: Yuichi Okada, Yuko Hirano, Shingo Kubo
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Patent number: 7147378Abstract: A friction-reducing abrasion resistant bearing material is described. The material comprises a monolithic, porous polytetrafluoroethylene (ePTFE) having dispersed therein a wear-resistant thermosetting or thermoplastic resin material.Type: GrantFiled: February 19, 2004Date of Patent: December 12, 2006Assignee: Gore Enterprise Holdings, Inc.Inventors: Chaokang Chu, James R. Hanrahan
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Patent number: 7117545Abstract: Liquidproof seams are formed between laminates, most preferably those having a complex textile structure on the sealing side of the laminate, where at least a portion of the complex textile in the sealing region is removed, such as by skiving, to reduce the thickness in the seam, or sealing region, prior to the creation of a durably sealed liquidproof seam.Type: GrantFiled: October 15, 2003Date of Patent: October 10, 2006Assignee: Gore Enterprise Holdings Inc.Inventors: Gregory E. Hannon, William G. Hardie, Timothy J. Smith
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Patent number: D518146Type: GrantFiled: May 19, 2004Date of Patent: March 28, 2006Inventors: Juergen Schreiner, Boris Simon
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Patent number: D619653Type: GrantFiled: April 16, 2009Date of Patent: July 13, 2010Assignee: Gore Enterprise Holdings, Inc.Inventors: Charles M. Willard, William F. Candy