Patents by Inventor John W. Dolan
John W. Dolan 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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Publication number: 20200190706Abstract: Yarns made from staple fibers comprising a plurality of fluoropolymer staple fibers with an average caliper diameter of at least 15 micron and a plurality of non-fluoropolymer staple fibers, wherein the ratio of the average caliper diameter of the fluoropolymer staple fibers to the non-fluoropolymer staple fibers in the yarn is 1.2 or greater. Also taught are yarns made from staple fibers with a plurality of fluoropolymer staple fibers having a rectangular cross-section and with an average caliper diameter up to 500 micron, and a plurality of non-fluoropolymer staple fibers with an average caliper diameter up to 40 micron.Type: ApplicationFiled: May 31, 2018Publication date: June 18, 2020Inventors: John W. Dolan, David J. Minor
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Patent number: 8726917Abstract: A dental cleaning article comprising a band of expanded fluoropolymer that is highly distensible at room temperature, such that it can be stretched from a first state to a second state is described. The diameter of the band of expanded fluoropolymer may be increased by stretching by, in some embodiments, two times or more the original first state diameter. Likewise the cross sectional area of the band of expanded fluoropolymer may be reduced upon stretching to less than one quarter the first state cross sectional area. The band of expanded fluoropolymer provides the user with the ability to stretch the band a desired amount, such that they may more effectively clean between their teeth. Furthermore, the band may be regular or irregularly shaped, and in some embodiments may comprise higher density regions.Type: GrantFiled: October 4, 2011Date of Patent: May 20, 2014Assignee: W. L. Gore & Associates, Inc.Inventors: John W. Dolan, Michael F. Altman, Donald L. Hollenbaugh, Jr., Rachel Radspinner, Alex R. Hobson
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Publication number: 20130081648Abstract: A dental cleaning article comprising a band of expanded fluoropolymer that is highly distensible at room temperature, such that it can be stretched from a first state to a second state is described. The diameter of the band of expanded fluoropolymer may be increased by stretching by, in some embodiments, two times or more the original first state diameter. Likewise the cross sectional area of the band of expanded fluoropolymer may be reduced upon stretching to less than one quarter the first state cross sectional area. The band of expanded fluoropolymer provides the user with the ability to stretch the band a desired amount, such that they may more effectively clean between their teeth. Furthermore, the band may be regular or irregularly shaped, and in some embodiments may comprise higher density regions.Type: ApplicationFiled: October 4, 2011Publication date: April 4, 2013Inventors: John W. Dolan, Michael F. Altman, Donald L. Hollenbaugh, Rachel Radspinner, Alex R. Hobson
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Patent number: 7060354Abstract: A dental floss comprising a porous PTFE fiber having a density of less than about 0.7 g/cc. The inventive floss is abrasion resistant, grippable and has a soft feel to the hands and a rough feel in the mouth. The floss is made by an extrusion process with non-contact heating during subsequent expansion with amorphous locking.Type: GrantFiled: January 9, 2003Date of Patent: June 13, 2006Assignee: Gore Enterprise Holdings, Inc.Inventors: Richard L. Baillie, James H. Chastain, John W. Dolan, William Hammond Wiley
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Publication number: 20030196676Abstract: A dental floss comprising a porous PTFE fiber having a density of less than about 0.7 g/cc. The inventive floss is abrasion resistant, grippable and has a soft feel to the hands and a rough feel in the mouth. The floss is made by an extrusion process with non-contact heating during subsequent expansion with amorphous locking.Type: ApplicationFiled: May 19, 2003Publication date: October 23, 2003Inventors: Richard L. Baillie, James H. Chastain, John W. Dolan, William Hammond Wiley
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Publication number: 20030172951Abstract: A dental floss comprising a porous PTFE fiber having a density of less than about 0.7 g/cc. The inventive floss is abrasion resistant, grippable and has a soft feel to the hands and a rough feel in the mouth. The floss is made by an extrusion process with non-contact heating during subsequent expansion with amorphous locking.Type: ApplicationFiled: January 9, 2003Publication date: September 18, 2003Inventors: Richard L. Baillie, James H. Chastain, John W. Dolan, William Hammond Wiley
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Patent number: 6539951Abstract: A dental floss comprising a porous PTFE fiber having a density of less than about 0.7 g/cc. The inventive floss is abrasion resistant, grippable and has a soft feel to the hands and a rough feel in the mouth. The floss is made by an extrusion process with non-contact heating during subsequent expansion with amorphous locking.Type: GrantFiled: November 24, 1999Date of Patent: April 1, 2003Assignee: Gore Enterprise Holdings, Inc.Inventors: Richard L. Baillie, James H. Chastain, John W. Dolan, William Hammond Wiley
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Publication number: 20030037798Abstract: A dental floss comprising a porous PTFE fiber having a density of less than about 0.7 g/cc. The inventive floss is abrasion resistant, grippable and has a soft feel to the hands and a rough feel in the mouth. The floss is made by an extrusion process with non-contact heating during subsequent expansion with amorphous locking.Type: ApplicationFiled: November 24, 1999Publication date: February 27, 2003Inventors: Richard L. Baillie, James H. Chastain, John W. Dolan, William Hammond Wiley
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Patent number: 6117547Abstract: A PTFE fiber that is adapted to be sewn at high speeds. The fiber has a toughness greater than about 0.36 grams per denier (g/d). A range for the toughness is from about 0.36 to about 1.01 g/d, with a preferred range being from about 0.50 to about 0.80 g/d. The toughness of the inventive PTFE fiber is most preferably about 0.60 g/d. The inventive fiber has a peak engineering stress greater than about 1.6 g/d and a break strain greater than about 15.5 percent. A preferred range for the peak engineering stress is from about 3.0 g/d to about 5.0 g/d, and a preferred range for the break strain is from about 20 percent to about 50 percent. Most preferably, the peak engineering stress is about 4.4 g/d, and the break strain is about 24 percent. In another aspect, this invention provides a process for making a fiber that involves providing a PTFE fiber and heating the PTFE fiber to a temperature of from about 300.degree. C. to about 500.degree. C.Type: GrantFiled: September 23, 1999Date of Patent: September 12, 2000Assignee: Gore Enterprise Holdings, Inc.Inventors: Thomas Patrick Kelmartin, Jr., George M. Roberts, John W. Dolan, Raymond B. Minor
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Patent number: 6114035Abstract: A PTFE fiber that is adapted to be sewn at high speeds. The fiber has a toughness greater than about 0.36 grams per denier (g/d). A range for the toughness is from about 0.36 to about 1.01 g/d, with a preferred range being from about 0.50 to about 0.80 g/d. The toughness of the inventive PTFE fiber is most preferably about 0.60 g/d. The inventive fiber has a peak engineering stress greater than about 1.6 g/d and a break strain greater than about 15.5 percent. A preferred range for the peak engineering stress is from about 3.0 g/d to about 5.0 g/d, and a preferred range for the break strain is from about 20 percent to about 50 percent. Most preferably, the peak engineering stress is about 4.4 g/d, and the break strain is about 24 percent. In another aspect, this invention provides a process for making a fiber that involves providing a PTFE fiber and heating the PTFE fiber to a temperature of from about 300.degree. C. to about 500.degree. C.Type: GrantFiled: September 23, 1999Date of Patent: September 5, 2000Assignee: Gore Enterprise Holdings, Inc.Inventors: Thomas Patrick Kelmartin, Jr., George M. Roberts, John W. Dolan, Raymond B. Minor
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Patent number: 6071452Abstract: A PTFE fiber that is adapted to be sewn at high speeds. The fiber has a toughness greater than about 0.36 grams per denier (g/d). A range for the toughness is from about 0.36 to about 1.01 g/d, with a preferred range being from about 0.50 to about 0.80 g/d. The toughness of the inventive PTFE fiber is most preferably about 0.60 g/d. The inventive fiber has a peak engineering stress greater than about 1.6 g/d and a break strain greater than about 15.5 percent. A preferred range for the peak engineering stress is from about 3.0 g/d to about 5.0 g/d, and a preferred range for the break strain is from about 20 percent to about 50 percent. Most preferably, the peak engineering stress is about 4.4 g/d, and the break strain is about 24 percent. In another aspect, this invention provides a process for making a fiber that involves providing a PTFE fiber and heating the PTFE fiber to a temperature of from about 300.degree. C. to about 500.degree. C.Type: GrantFiled: September 23, 1999Date of Patent: June 6, 2000Assignee: Gore Enterprise Holdings, Inc.Inventors: Thomas Patrick Kelmartin, Jr., George M. Roberts, John W. Dolan, Raymond B. Minor
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Patent number: 6030694Abstract: A composite fluoropolymer material contains outer layers consisting essentially of conformable porous polytetrafluoroethylene (PTFE) and interior layers consisting essentially of rigid fluoropolymer material which may be a densified expanded PTFE, wherein the composite layers may optionally contain electrically conductive fillers. The composite is bonded together to form a sheet material that is sufficiently conformable to provide good seal between surfaces and is sufficiently rigid to make the material easy to handle and install. The material of the present invention is particularly suitable for use as a gasket where rigidity is needed, customization or modification of gasket shape is desirable, and/or where a wide, even sealing surface is sought.Type: GrantFiled: July 30, 1997Date of Patent: February 29, 2000Assignee: W. L. Gore & Associates, Inc.Inventors: John W. Dolan, David J. Mills
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Patent number: 6003664Abstract: A foldable shipping container, having a main body and first and second side wall panels, which in an assembled configuration forms a display container, wherein a display portion is detached from the main body at a predetermined separation region to form an erected display panel and wherein each of the first and second side wall panels includes a detachable access panel.Type: GrantFiled: December 6, 1996Date of Patent: December 21, 1999Assignee: W. L. Gore & Associates, Inc.Inventor: John W. Dolan
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Patent number: 5989709Abstract: A PTFE fiber that is adapted to be sewn at high speeds. The fiber has a toughness greater than about 0.36 grams per denier (g/d). A range for the toughness is from about 0.36 to about 1.01 g/d, with a preferred range being from about 0.50 to about 0.80 g/d. The toughness of the inventive PTFE fiber is most preferably about 0.60 g/d. The inventive fiber has a peak engineering stress greater than about 1.6 g/d and a break strain greater than about 15.5 percent. A preferred range for the peak engineering stress is from about 3.0 g/d to about 5.0 g/d, and a preferred range for the break strain is from about 20 percent to about 50 percent. Most preferably, the peak engineering stress is about 4.4 g/d, and the break strain is about 24 percent. In another aspect, this invention provides a process for making a fiber that involves providing a PTFE fiber and heating the PTFE fiber to a temperature of from about 300.degree. C. to about 500.degree. C.Type: GrantFiled: April 30, 1998Date of Patent: November 23, 1999Assignee: Gore Enterprises Holdings, Inc.Inventors: Thomas Patrick Kelmartin, Jr., George M. Roberts, John W. Dolan, Raymond B. Minor
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Patent number: 5975296Abstract: A dental floss holder includes a pair of arms, each arm having a middle portion and first and second opposite end portions. The first end portion of each arm curves outwardly away from its respective middle portion wherein the middle portions of the arms are positioned proximate one another so as to define a pivot. The second end portions are movable between a first position in which the first end portions of the arms diverge away from one another, and a second position in which the first end portions are moved toward one another. Dental floss material has one end secured to the first end portion of one arm and an opposite end secured to the first end portion of the other arm. The dental floss material has a first tension when the first end portions are in their spaced apart position and a second tension when the first end portions are moved toward one another, said first tension being greater than the second tension. Further embodiments of the dental floss holder are also contemplated.Type: GrantFiled: October 27, 1997Date of Patent: November 2, 1999Assignee: Gore Enterprise Holdings, Inc.Inventors: John W. Dolan, Brad F. Abrams, Robert M. Russell, Harold J. Pickar, Sr., David D. McClanahan
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Patent number: 5878758Abstract: A dental floss article is provided comprising a fiber having a predetermined length and defined by at least one substantially rigid portion and at least one flexible portion.Type: GrantFiled: September 10, 1997Date of Patent: March 9, 1999Assignee: Gore Enterprise Holdings, Inc.Inventors: John Edward Bacino, John W. Dolan, Thomas Michael Gray
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Patent number: 5879789Abstract: An improved, chemically resistant gasket is constructed from a composite containing outer layers consisting essentially of conformable expanded polytetrafluoroethylene (PTFE) and interior layers consisting essentially of a densified expanded PTFE, wherein the composite layers may optionally contain electrically conductive fillers. The composite is bonded together to form a sheet material that is sufficiently conformable to provide good seal between surfaces and is sufficiently rigid to make the material easy to handle and install. The material of the present invention is particularly suitable for use as a gasket where rigidity is needed, customization or modification of gasket shape is desirable, and/or where a wide, even sealing surface is sought.Type: GrantFiled: June 1, 1995Date of Patent: March 9, 1999Assignee: W. L. Gore & Associates, Inc.Inventors: John W. Dolan, David J. Mills
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Patent number: 5848600Abstract: A dental floss article is provided comprising a fiber having a predetermined length and defined by at least one substantially rigid portion and at least one flexible portion.Type: GrantFiled: September 10, 1997Date of Patent: December 15, 1998Assignee: Gore Enterprise Holdings, Inc.Inventors: John Edward Bacino, John W. Dolan, Thomas Michael Gray
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Patent number: 5765576Abstract: The present invention is a floss material defined by a towed filament. The filament may be made from a towed polytetrafluoroethylene material or a towed polymeric material.Type: GrantFiled: January 24, 1997Date of Patent: June 16, 1998Assignee: W. L. Gore & AssociatesInventors: John W. Dolan, John W. Spencer, Jr., Loretta A. Whelan
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Patent number: D412043Type: GrantFiled: October 27, 1997Date of Patent: July 13, 1999Assignee: Gore Enterprise Holdings, Inc.Inventors: John W. Dolan, Brad F. Abrams, Robert M. Russell, David D. McClanahan