Patents by Inventor John Frederick Porter

John Frederick Porter 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: 20040142618
    Abstract: This invention provides facing materials for cementitious boards such as those including Portland cement or gypsum cores. The preferred facing material includes, in a first embodiment, a facing layer having an areal weight of about 300 grams/M2, and an air permeability rating of no greater than about 300 CFM/ft2 (FG 436-910 test method). The facing layer reduces the penetration of a slurry of cementitious material during the manufacture of a cementitious board, while permitting the water vapor from the slurry to pass therethrough. The facing materials of this invention can be designed to substantially eliminate the fouling of rolls used in continuous processing of such boards without the use, or with greatly reduced use, of costly viscosity control agents in the slurry.
    Type: Application
    Filed: January 21, 2003
    Publication date: July 22, 2004
    Applicant: Saint Gobain Technical Fabrics
    Inventor: John Frederick Porter
  • Publication number: 20040084127
    Abstract: A composite fabric for use in reinforcement of cementitious boards and similar prefabricated building wall panels. The fabric includes an open mesh first component of continuously coated, high modulus of elasticity strands and a nonwoven second component fabricated from alkali resistant thermoplastic material. The high modulus strands of the first component are preferably bundled glass fibers encapsulated by alkali and water resistant thermoplastic material. The composite fabric also has suitable physical characteristics for embedment within the cement matrix of the panels or boards closely adjacent the opposed faces thereof. The reinforcement provides long-lasting, high strength tensile reinforcement and impact resistance for the panels or boards. The reinforcement also enables the boards to have smooth outer faces suitable for painting, papering, tiling or other finishing treatment.
    Type: Application
    Filed: October 29, 2003
    Publication date: May 6, 2004
    Inventor: John Frederick Porter
  • Patent number: 6716774
    Abstract: A knitted screen cloth fabric including a polymer coated, fiber-reinforced, flexible, foil-like web and method for making same are disclosed, the web including a lattice material of filaments and a polyester binding thread.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: April 6, 2004
    Assignee: Saint-Gobain Technical Fabrics Canada, Ltd.
    Inventors: John Frederick Porter, Roger Peter Lewington
  • Publication number: 20030104738
    Abstract: This invention provides multi-layered composites, laminates and composite joints in which at least one resin-impregnated, fiber-containing layer is joined or laminated to a core layer having a lower flexural modulus or higher elongation at break, higher toughness, or a combination of all or some of these properties. The multi-layer composite produced by laminating or joining these materials together has improved shearout, impact and cutting resistance, since stresses caused by outside forces can be more widely distributed throughout the composite.
    Type: Application
    Filed: November 29, 2001
    Publication date: June 5, 2003
    Applicant: Saint-Gobain Technical Fabrics Canada, Ltd.
    Inventor: John Frederick Porter
  • Publication number: 20020182953
    Abstract: A composite fabric for use in reinforcement of cementitious boards and similar prefabricated building wall panels. The fabric includes an open mesh first component of continuously coated, high modulus of elasticity strands and a nonwoven second component fabricated from alkali resistant thermoplastic material. The high modulus strands of the first component are preferably bundled glass fibers encapsulated by alkali and water resistant thermoplastic material. The composite fabric also has suitable physical characteristics for embedment within the cement matrix of the panels or boards closely adjacent the opposed faces thereof. The reinforcement provides long-lasting, high strength tensile reinforcement and impact resistance for the panels or boards. The reinforcement also enables the boards to have smooth outer faces suitable for painting, papering, tiling or other finishing treatment.
    Type: Application
    Filed: May 23, 2002
    Publication date: December 5, 2002
    Inventor: John Frederick Porter
  • Publication number: 20020182954
    Abstract: A composite fabric for use in reinforcement of cementitious boards and similar prefabricated building wall panels. The fabric includes an open mesh first component of continuously coated, high modulus of elasticity strands and a nonwoven second component fabricated from alkali resistant thermoplastic material. The high modulus strands of the first component are preferably bundled glass fibers encapsulated by alkali and water resistant thermoplastic material. The composite fabric also has suitable physical characteristics for embedment within the cement matrix of the panels or boards closely adjacent the opposed faces thereof. The reinforcement provides long-lasting, high strength tensile reinforcement and impact resistance for the panels or boards. The reinforcement also enables the boards to have smooth outer faces suitable for painting, papering, tiling or other finishing treatment.
    Type: Application
    Filed: May 23, 2002
    Publication date: December 5, 2002
    Inventor: John Frederick Porter
  • Publication number: 20020137410
    Abstract: A knitted screen cloth fabric including a polymer coated, fiber-reinforced, flexible, foil- like web and method for making same are disclosed, the web including a lattice material of filaments and a polyester binding thread.
    Type: Application
    Filed: December 19, 2001
    Publication date: September 26, 2002
    Inventors: John Frederick Porter, Roger Peter Lewington