Patents by Inventor William P. Mortimer, Jr.
William P. Mortimer, Jr. 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).
-
Publication number: 20230324379Abstract: An expanded polytetrafluoroethylene substrate comprising a microporous microstructure, an interlayer over at least a portion of the microstructure, the interlayer containing a reactive functionality, and a functional layer attached to the interlayer, the interlayer comprising a sol-gel coating or a polyvinylalcohol. The functional layer of the substrate having functional sites with a density of at least 50 nanomoles/cm2.Type: ApplicationFiled: March 8, 2023Publication date: October 12, 2023Inventors: Anit Dutta, Heidi Flannery, William P. Mortimer, JR.
-
Patent number: 11635430Abstract: An expanded polytetrafluoroethylene substrate comprising a microporous microstructure, an interlayer over at least a portion of the microstructure, the interlayer containing a reactive functionality, and a functional layer attached to the interlayer, the interlayer comprising a sol-gel or a polyvinylalcohol. The functional layer of the substrate having functional sites with a density of at least 50 nanomoles/cm2.Type: GrantFiled: January 31, 2019Date of Patent: April 25, 2023Assignee: W. L. Gore & Associates, Inc.Inventors: Anit Dutta, Heidi Flannery, William P. Mortimer, Jr.
-
Publication number: 20190162723Abstract: An expanded polytetrafluoroethylene substrate comprising a microporous microstructure, an interlayer over at least a portion of said microstructure, the interlayer containing a reactive functionality, and a functional layer attached to said interlayer, said interlayer comprising a sol-gel coating or a polyvinylalcohol, said functional layer having functional sites with a density of at least 50 nanomoles/cm2.Type: ApplicationFiled: January 31, 2019Publication date: May 30, 2019Inventors: Anit Dutta, Heidi Flannery, William P. Mortimer, JR.
-
Patent number: 10209252Abstract: A substrate comprising a microporous microstructure, an interlayer over at least a portion of the microstructure and a functional layer attached to the interlayer, the functional layer having functional sites with a density of at least 50 nanomoles/cm2.Type: GrantFiled: March 1, 2011Date of Patent: February 19, 2019Assignee: W.L. Gore & Associates, Inc.Inventors: Anit Dutta, Heidi Flannery, William P. Mortimer, Jr.
-
Publication number: 20110172116Abstract: A substrate comprising a microporous microstructure, an interlayer over at least a portion of the microstructure and a functional layer attached to the interlayer, the functional layer having functional sites with a density of at least 50 nanomoles/cm2.Type: ApplicationFiled: March 1, 2011Publication date: July 14, 2011Inventors: Anit Dutta, Heidi Flannery, William P. Mortimer, JR.
-
Publication number: 20110152125Abstract: A substrate comprising a microporous microstructure, an interlayer over at least a portion of the microstructure and a functional layer attached to the interlayer, the functional layer having functional sites with a density of at least 50 nanomoles/cm2.Type: ApplicationFiled: March 1, 2011Publication date: June 23, 2011Inventors: Anit Dutta, Heidi Flannery, William P. Mortimer, JR.
-
Patent number: 7923054Abstract: A substrate comprising a microporous microstructure, an interlayer over at least a portion of the microstructure and a functional layer attached to the interlayer, the functional layer having functional sites with a density of at least 50 nanomoles/cm2.Type: GrantFiled: April 19, 2006Date of Patent: April 12, 2011Assignee: Gore Enterprise Holdings, Inc.Inventors: Anit Dutta, Heidi Flannery, William P. Mortimer, Jr.
-
Patent number: 5916671Abstract: An improved gasket particularly suitable for use in sensitive environments is disclosed. The preferred gasket of the present invention comprises at least one layer of a composite material of porous polytetrafluoroethylene (PTFE) polymer and resilient expandable microspheres. The composite material provides a number of significant advantages over existing PTFE and similar clean gaskets, including better seal under less compressive pressure, sufficient resilience to permit reuse, and retained porosity--allowing pressure equalization in the equipment to occur through the gasket itself.Type: GrantFiled: February 18, 1997Date of Patent: June 29, 1999Assignee: W. L. Gore & Associates, Inc.Inventors: Edwin G. Dauber, Daniel E. Hubis, Gordon L. McGregor, Raymond B. Minor, William P. Mortimer, Jr.
-
Patent number: 5843390Abstract: A method of using an improved catalytic filter material for removing contaminants such as NO.sub.x from a fluid stream. The filter employs composite fibers of expanded polytetrafluoroethylene (PTFE) filled with catalytic particles. The composite fibers are chopped into staple fibers and made into a felt material. Preferably, the felt material is then laminated on at least one side with a protective microporous membrane. The combined filter removes both macro-particles, such as dust, from the filter stream before the dust can clog active catalytic sites and effectively catalytically coverts undesirable contaminants in the fluid stream to acceptable end products.Type: GrantFiled: January 21, 1997Date of Patent: December 1, 1998Assignee: W. L. Gore & Associates, Inc.Inventors: Marc Plinke, Robert L. Sassa, William P. Mortimer, Jr., Glenn A. Brinckman
-
Patent number: 5620669Abstract: The present invention is an improved catalytic filter material for use in removing contaminants such as NO.sub.x from a fluid stream. The filter of the present invention employs composite fibers of expanded polytetrafluoroethylene (PTFE) filled with catalytic particles. The composite fibers are chopped into staple fibers and made into a felt material. Preferably, the felt material is then laminated on at least one side with a protective microporous membrane. The combined filter removes both macro-particles, such as dust, from the filter stream before the dust can clog active catalytic sites and effectively catalytically coverts undesirable contaminants in the fluid stream to acceptable end products.Type: GrantFiled: August 15, 1995Date of Patent: April 15, 1997Assignee: W. L. Gore & Associates, Inc.Inventors: Marc Plinke, Robert L. Sassa, William P. Mortimer, Jr., Glenn A. Brinckman
-
Patent number: 5591034Abstract: A thermally conductive interface is provided suitable for thermal conduction, especially between electronic components. The preferred thermally conductive interface comprises an open structure fluoropolymer material, such as expanded polytetrafluoroethylene, with uncoated thermally conductive particles attached to solid portions thereof. The interface has numerous benefits over previously available material, such as improved thermal conductivity, high conformability, better compressibility, inherent porosity so as to provide air relief, improved stress relief, and high material compliance and resistance to fatigue during thermal cycling.Type: GrantFiled: July 25, 1995Date of Patent: January 7, 1997Assignee: W. L. Gore & Associates, Inc.Inventors: Joseph G. Ameen, Joseph E. Korleski, William P. Mortimer, Jr., Victor P. Yokimcus
-
Patent number: 5560986Abstract: A composite of a thermoplastic copolymer of tetrafluoroethylene and perfluoro(propyl vinyl ether), and a porous membrane of polytetrafluoroethylene, at least a portion of the thermoplastic copolymer being dispersed within the pores of the porous polytetrafluoroethylene. The composite is useful as insulation for wire and cable.Type: GrantFiled: May 31, 1994Date of Patent: October 1, 1996Assignee: W. L. Gore & Associates, Inc.Inventor: William P. Mortimer, Jr.
-
Patent number: 5554236Abstract: An improved low noise electrical signal transmission cable is disclosed. The cable employs an insulative layer of expanded polytetrafluoroethylene (PTFE) which is bonded in fixed relative position with a surrounding shield layer through use of an adhesive, such as fluorinated ethylenepropylene (FEP) or perfluoroalkoxy polymer (PFA). The bonding process reduces the separation of layers which can sometimes occur with expanded PTFE insulative cables and avoids the generation of unwanted triboelectric signals that can result from such separation.Type: GrantFiled: June 1, 1995Date of Patent: September 10, 1996Assignee: W. L. Gore & Associates, Inc.Inventors: David T. Singles, Grant Walter, William P. Mortimer, Jr.
-
Patent number: 5545473Abstract: A thermally conductive interface is provided suitable for thermal conduction, especially between electronic components. The preferred thermally conductive interface comprises an open structure fluoropolymer material, such as expanded polytetrafluoroethylene, with uncoated thermally conductive particles attached to solid portions thereof. The interface has numerous benefits over previously available material, such as improved thermal conductivity, high conformability, better compressibility, inherent porosity so as to provide air relief, improved stress relief, and high material compliance and resistance to fatigue during thermal cycling.Type: GrantFiled: February 14, 1994Date of Patent: August 13, 1996Assignee: W. L. Gore & Associates, Inc.Inventors: Joseph G. Ameen, William P. Mortimer, Jr., Victor P. Yokimcus
-
Patent number: 5500038Abstract: A compact sorbent filter for selectively sorbing contaminants and method of removing contamination from an enclosure with a filter is disclosed. The filter comprises a sorbent core including contaminant adsorbing material therein, an outer protective cover wrapped around the inner sorbent core so as to completely contain the sorbent core, with the exposed end(s) of the core being capped so as to encapsulate the sorbent core present within the filter while not limiting the amount of material contained therein. A sorbing filter is placed within an enclosure to remove gaseous contamination therein. The filter is particularly suitable for use in a computer disk drive or similar enclosure where out-gassing contamination may be a problem.Type: GrantFiled: August 30, 1994Date of Patent: March 19, 1996Assignee: W. L. Gore & Associates, Inc.Inventors: Edwin G. Dauber, William P. Mortimer, Jr., Michael S. Winterling
-
Patent number: 5477011Abstract: An improved low noise electrical signal transmission cable is disclosed. The cable employs an insulative layer of expanded polytetrafluoroethylene (PTFE) which is bonded in fixed relative position with a surrounding shield layer through use of an adhesive, such as fluorinated ethylenepropylene (FEP) or perfluoroalkoxy polymer (PFA). The bonding process reduces the separation of layers which can sometimes occur with expanded PTFE insulative cables and avoids the generation of unwanted triboelectric signals that can result from such separation.Type: GrantFiled: March 3, 1994Date of Patent: December 19, 1995Assignee: W. L. Gore & Associates, Inc.Inventors: David T. Singles, Grant Walter, William P. Mortimer, Jr.
-
Patent number: 5429869Abstract: The present invention provides improved compositions of expanded polytetrafluoroethylene (PTFE) and similar polymers and methods for forming and using such compositions. In its preferred embodiment, the present invention employs a mixture of PTFE and expandable thermoplastic microspheres. Through application of an energy source to the mixture, a coherent three dimensional expansion of PTFE can be achieved. The expanded mixture has many of the same beneficial properties of mechanically expanded PTFE and numerous properties previously unavailable with expanded PTFE products.Type: GrantFiled: February 26, 1993Date of Patent: July 4, 1995Assignee: W. L. Gore & Associates, Inc.Inventors: Gordon L. McGregor, Raymond B. Minor, William P. Mortimer, Jr., Daniel E. Hubis
-
Patent number: 5269810Abstract: A flexible patch electrode for use with living tissue, comprising, in sequential laminar form, a layer of electrically conductive porous polytetrafluoroethylene, a layer of polymeric adhesive, a layer of electrically conductive sheet material having lower resistivity than the layer of porous polytetrafluoroethylene, and an insulating layer. The layer of electrically conductive sheet material is of less length and width than the adjacent layers and is placed so that its edges are not exposed at the edges of the flexible patch electrode.Type: GrantFiled: June 19, 1992Date of Patent: December 14, 1993Assignee: W. L. Gore & Associates, Inc.Inventors: John R. Hull, Craig D. Lack, William P. Mortimer, Jr., Richard A. Staley
-
Patent number: 5262234Abstract: A fiber of expanded porous polytetrafluoroethylene in which an amount of a conductive particulate filler is incorporated imparting a measure of conductivity to the fiber is disclosed. The fiber may be twisted along its length. The fiber may be a continuous monofilament fiber, a tow, a staple, or a flock.Type: GrantFiled: July 16, 1992Date of Patent: November 16, 1993Assignee: W. L. Gore & Associates, Inc.Inventors: Raymond B. Minor, Gordon L. McGregor, William P. Mortimer, Jr.
-
Patent number: 4985296Abstract: A filled PTFE film is prepared by compressing an expanded, porous PTFE film that contains filler material. The films have high strength with substantially few pinholes.Type: GrantFiled: March 16, 1989Date of Patent: January 15, 1991Assignee: W. L. Gore & Associates, Inc.Inventor: William P. Mortimer, Jr.