Patents by Inventor Patrick W. Whiteman

Patrick W. Whiteman 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).

  • Hammermill apparatus for subdividing cellulosic material
    Patent number: 4526325
    Abstract: This invention is directed to a new and improved animal bedding comprising newsprint subdivided into a range of particle sizes. The bedding provides the necessary liquid absorbence and resistance to compaction without excessive dust. The invention is directed also to the process and hammermill apparatus for preparing said bedding.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: July 2, 1985
    Assignee: Recycled Paper Bedding, Inc.
    Inventor: Patrick W. Whiteman
  • Process for preparing animal bedding
    Patent number: 4437615
    Abstract: This invention is directed to a new and improved animal bedding comprising newsprint subdivided into a range of particle sizes. The bedding provides the necessary liquid absorbence and resistance to compaction without excessive dust. The invention is directed also to the process and hammermill apparatus for preparing said bedding.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: March 20, 1984
    Assignee: Recycled Paper Bedding, Inc.
    Inventor: Patrick W. Whiteman
  • Animal bedding, process and apparatus for preparing the same
    Patent number: 4378756
    Abstract: This invention is directed to a new and improved animal bedding comprising newsprint subdivided into a range of particle sizes. The bedding provides the necessary liquid absorbence and resistance to compaction without excessive dust. The invention is directed also to the process and hammermill apparatus for preparing said bedding.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: April 5, 1983
    Assignee: Recycled Paper Bedding, Inc.
    Inventor: Patrick W. Whiteman
  • Non-plugging screw conveyer
    Patent number: 4328913
    Abstract: This invention is directed to a new and improved screw conveyor useful for bagging animal bedding comprising subdivided newsprint. The screw of the auger has flights of predetermined different heights which avoid undue compaction of the bedding as it is conveyed.
    Type: Grant
    Filed: February 29, 1980
    Date of Patent: May 11, 1982
    Assignee: Recycled Paper Bedding, Inc.
    Inventor: Patrick W. Whiteman