Patents by Inventor Foster Laverne Harding

Foster Laverne Harding 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).

  • Glass composition for ultrafine fiber formation
    Patent number: 6656861
    Abstract: Provided are glass compositions uniquely applicable for the preparation of ultrafine fibers for filtration and separation applications. The glasses meet all physical and chemical criteria, including that for biodissolution rate.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: December 2, 2003
    Assignee: Johns Manville International, Inc.
    Inventors: Jon Frederick Bauer, Foster Laverne Harding, Harry Hand Russell, III
  • Flame attenuated fiberglass
    Patent number: 6399525
    Abstract: Glass fibers prepared by flame attenuation display excellent chemical resistance to both acids and moisture while being highly biosoluble at the same time. The glass compositions are characterized by ratios of components which are reflective of acid resistance, biosolubility, and moisture resistance. Preferred glass fibers exhibit a biodissolution greater than about 350 ng/cm/2hr.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: June 4, 2002
    Assignee: Johns Manville International, Inc.
    Inventors: Foster Laverne Harding, Jon Frederick Bauer, Harry Hand Russell, III, Xiaojie Xu
  • Flame attenuated fiberglass
    Publication number: 20020006856
    Abstract: Glass fibers prepared by flame attenuation display excellent chemical resistance to both acids and moisture while being highly biosoluble at the same time. The glass compositions are characterized by ratios of components which are reflective of acid resistance, biosolubility, and moisture resistance. Preferred glass fibers exhibit a biodissolution greater than about 350 ng/cm/2hr.
    Type: Application
    Filed: July 12, 2001
    Publication date: January 17, 2002
    Inventors: Foster Laverne Harding, Jon Frederick Bauer, Harry Hand Russell, Xiaojie Xu
  • Lightweight glass fiber insulation
    Patent number: 6294491
    Abstract: An insulation product especially suited for use as an aircraft insulation includes a blanket of randomly oriented entangled glass fibers bonded together by a thermosetting binder and having a mean diameter of about 1+/−0.25 microns. The blanket has a density between about 0.25 and about 1.5 pounds per cubic foot and a thickness between about 0.35 inches and about 2.0 inches. The blanket, exclusive of anything else, has an average machine direction tensile strength of at least 0.6 pounds/inch of blanket width and an average cross machine direction tensile strength of at least 0.3 pounds/inch of blanket length; a transverse airflow resistance between about 300 Rayls and about 1800 Rayls; and a thermal conductivity equal to or less than about 0.32 BTU-in/hr-ft2-° F. The glass fibers of the blanket have a biodissolution rate in excess of 150 ng/cm2/hr.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: September 25, 2001
    Assignee: Johns Manville International, Inc.
    Inventors: Ralph Michael Fay, Jeffrey Canon Townsend, Foster Laverne Harding, Jon Frederick Bauer, Harry Hand Russell, III, Xiaojie Xu
  • Boron-free glass composition and filtration media
    Patent number: 6277777
    Abstract: Novel boron-free glass compositions are described which are particularly suited for making fine diameter glass fibers for HEPA electronic clean-room filtration media using flame-attenuation or rotary glass processing.
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: August 21, 2001
    Assignee: Johns Manville International, Inc.
    Inventors: Xiaojie Xu, Foster Laverne Harding, Jon Frederick Bauer
  • Glass compositions for high thermal insulation efficiency glass fibers
    Patent number: 6107224
    Abstract: Glass compositions displaying decreased far infrared radiation transmission, high biosolubility, and excellent moisture resistance are capable of fiberization by the rotary process, and may be used to prepare thermal insulation products exhibiting high thermal insulation efficiency as reflected by low thermal index values. The insulation products also exhibit excellent stiffness and recovery properties.
    Type: Grant
    Filed: November 19, 1998
    Date of Patent: August 22, 2000
    Assignee: Johns Manville International, Inc.
    Inventors: Xiaojie Xu, Foster Laverne Harding, Mark Alan Albers
  • Biosoluble pot and marble-derived fiberglass
    Patent number: 5945360
    Abstract: Glass compositions suitable for pot and marble fiberization display excellent chemical resistance to both acids and moisture while being highly biosoluble at the same time. The glass compositions are characterized by ratios of components which are reflective of acid resistance, biosolubility, and moisture resistance. Preferred glasses have a difference between HTV (10.sup.3 poise) and liquidus greater than 500.degree. F., and a biodissolution greater than about 350 ng/cm.sup.2 /hr.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: August 31, 1999
    Assignee: Johns Manville International, Inc.
    Inventors: Foster Laverne Harding, Jon Frederick Bauer, Harry Hand Russell, III, Xiaojie Xu
  • Glass compositions for high thermal insulation efficiency glass fibers
    Patent number: 5932499
    Abstract: Glass compositions displaying decreased far infrared radiation transmission, high biosolubility, and excellent moisture resistance are capable of fiberization by the rotary process, and may be used to prepare thermal insulation products exhibiting high thermal insulation efficiency as reflected by low thermal index values.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: August 3, 1999
    Assignee: Johns Manville International, Inc.
    Inventors: Xiaojie Xu, Foster Laverne Harding, Mark Alan Albers