Patents by Inventor Robert E. Harrison

Robert E. Harrison 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).

  • Method of making animal litter having improved absorbent and deodorizing qualities
    Patent number: 4821677
    Abstract: A method of making animal litter and the product produced thereby which utilizes ground peanut hulls, peanut shells and finely ground natural mineral in a dry mixture. The mixture is subjected to a preconditioning step which heats the mixture by steam injection prior to extrusion into pellets followed by air drying. The vegetable oil content of the peanut shells provides a binder for the pellet. The mineral constituent provides ionic bonding for the nitrogen ions in liquid animal waste to reduce the odor of animal litter exposed thereto.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: April 18, 1989
    Assignee: Virginia Mills, Inc.
    Inventor: Robert E. Harrison
  • Resilient article stack binder
    Patent number: 4211389
    Abstract: Apparatus for binding a load of articles including an elongate cable extending about the load, and a spring-loaded device operatively interconnecting opposite ends of the cable. A cable take-up drum is provided to adjust the effective length of the cable extending about the load and to deflect the spring to provide selected tightening of the cable about the load. Should the load change configuration the spring maintains the cable taut about the load.
    Type: Grant
    Filed: April 27, 1978
    Date of Patent: July 8, 1980
    Assignee: Timber Conversion, Inc.
    Inventors: Lawrence A. Frey, Robert E. Harrison, James E. McGriff
  • Timepiece face display
    Patent number: D395410
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: June 23, 1998
    Inventor: Robert E. Harrison