Patents by Inventor John F. Chin

John F. Chin 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).

  • Apparatus for attenuating mineral fibers
    Patent number: 4414010
    Abstract: An attenuating burner apparatus which requires less energy to soften the glass filaments. A shroud is provided for the attenuation zone which retains heat and limits the amount of dilution air that is entrained by the attenuation blast. The forward portion of the shroud is pivoted to permit adjustment to provide general alignment with the attenuation blast. A closure is provided for at least one of the openings through which dilution air is inspirated and a preheater uses waste heat to increase the temperature of the dilution air inspirated through another of the openings.
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: November 8, 1983
    Assignee: Manville Service Corporation
    Inventors: John F. Chin, Joseph A. Rhodes, James E. Kusterer