Patents by Inventor Joe B. Lovelace

Joe B. Lovelace 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).

  • Production of glass fibers from scrap glass fibers
    Patent number: 5352258
    Abstract: The process and apparatus of the present invention enable the production of glass fiber product from scrap glass fibers. The process includes: feeding the scrap glass fibers having an average length up to around 12 inches to a glass melting tank having a pool of molten fiberizable glass, melting the scrap glass fibers without the presence of non-vitrified glass forming materials in an oxidizing environment, conditioning the melt to a formable viscosity, and forming the glass fiber from the conditioned melt where for a given glass fiber product there is a near constant pull of the melted glass from the melter. The rate of feeding of the scrap glass to the melter is sufficient to maintain the pool of melted glass with a level within the range of .+-.0.35 inch (9 mm.) over a period of eight hours. The scrap glass fibers have a similar fiberizable inorganic composition to that of the desired glass fiber product and generally include fibers with organic-containing sizes and/or coatings.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: October 4, 1994
    Assignee: PPG Industries, Inc.
    Inventors: Stanley C. DeGreve, Joe B. Lovelace, E. Charles Watkins, Timothy G. Mathis, Harry Makitka, Thomas C. Bour, John W. Cotton, Curtis L. Hanvey, Jr., Dennis S. Postupack, James V. Shivers, Timothy Smith
  • Forming size for glass fibers
    Patent number: 4027071
    Abstract: A glass fiber forming size utilized to produce glass fiber strands is described in which the forming size is an aqueous mixture of polyvinyl acetate, fatty acid lubricant, methacrylato chromic chloride and gamma (ethylene diamine) propyl trimethoxy silane, the mixture being adjusted to pH between 6.1 and 6.5. The size composition is applied to glass fibers during forming. The strands produced utilizing this forming size find particular utility when formed into roving and produce a particularly effective gun roving product.
    Type: Grant
    Filed: August 18, 1975
    Date of Patent: May 31, 1977
    Assignee: PPG Industries, Inc.
    Inventors: Donald L. Motsinger, Charles E. Nalley, Joe B. Lovelace
  • Forming size of aqueous polyvinylacetate
    Patent number: 3933711
    Abstract: A glass fiber forming size utilized to produce glass fiber strands is described in which the forming size is an aqueous mixture of polyvinyl acetate, fatty acid lubricant, methacrylato chromic chloride and gamma (ethylene diamine) propyl trimethoxy silane, the mixture being adjusted to pH between 6.1 and 6.5. The size composition is applied to glass fibers during forming. The strands produced utilizing this forming size find particular utility when formed into roving and produce a particularly effective gun roving product.
    Type: Grant
    Filed: July 23, 1974
    Date of Patent: January 20, 1976
    Assignee: PPG Industries, Inc.
    Inventors: Donald L. Motsinger, Charles E. Nalley, Joe B. Lovelace