Patents by Inventor Clive E. Hardy

Clive E. Hardy 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 and apparatus for separating and classifying scrap plastic materials
    Patent number: 5255859
    Abstract: Classifying and processing post-consumer plastic scrap materials for subsequent utilization. Post-consumer plastic scrap of various kinds, such as colored HDPE, natural HDPE, green PET and clear PET are separating into constituent fractions, and each fraction is separately reduced to flakes. At least some of the fractions are separately washed to remove fragments of labels or other foreign matter previously in place on the plastic bottles or other containers making up those scrap constituents.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: October 26, 1993
    Assignee: M. A. Industries, Inc.
    Inventors: Bobbie D. Peacock, Michael E. Stout, Jeffrey H. Greene, Jarl B. Lindroos, Clive E. Hardy, James R. Jacobs