Patents by Inventor J. Arvis McKamie

J. Arvis McKamie 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).

  • Utilization of devulcanized EPDM membrane in the manufacture of EPDM membrane, flashing and roof accessories
    Patent number: 6515059
    Abstract: A method of recycling EPDM rubber including the steps of devulcanizing previously cured EPDM rubber and adding the devulcanized EPDM rubber to a composition for forming an elastomeric membrane for roofing, the composition including a rubber mixture including from about 50 to about 95 parts by weight virgin EPDM rubber, and from about 5 to about 50 parts by weight of the devulcanized EPDM rubber, to total one hundred parts by weight rubber, from about 75 to about 300 parts by weight phr of a filler, from about 35 to about 135 parts by weight phr of a processing oil, and a cure package.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: February 4, 2003
    Assignee: BFS Diversified Products, LLC
    Inventors: James A. Davis, Brenda J. Fannin, J. Arvis McKamie