Patents by Inventor Cecil E. Stapley

Cecil E. Stapley 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).

  • Patent number: 4726846
    Abstract: A method for reclaiming waste asphalt sheet material reinforced with inelastic brittle fibers, such as fiberglass, subjects the material to tearing, kneading, sheet and frictional drag forces, preferably in a kneading mixer, to reduce the material to a viscous fluid state in which the fibers have been pulverized to particles of a maximum dimension less than about 600 microns. If mineral particles of larger dimension are present in the reduced fluid material, they are crushed to filler particles of maximum dimension less than about 600 microns by passing the reduced fluid material between oppositely rotated, heated crush rolls. The novel reclaimed waste includes at least the asphalt and the pulverized fiber, may include mineral filler of maximum particle size less than 600 microns, some or all of which may be crushed mineral granules of larger maximum dimension contained in the waste material.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: February 23, 1988
    Assignee: Bird Incorporated
    Inventors: James W. Jackson, Cecil E. Stapley, Franklin W. Wood