Patents by Inventor David L. Prins

David L. Prins 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: 6101662
    Abstract: A cage for a paint roller is composed as a one piece, unitary construction having a plurality of projections. The projections make pressure contact with the inside of the bore in the center of the cover so as to prevent the cover from walking off the cage in use. The projections are formed to adapt to structural irregularities in the cover bore. A cage and cover sub-assembly and a paint roller incorporating the above is disclosed. The cage may have a tubular construction with the projections extending from the exterior of the tube, or the cage may have a beam-like construction along which hubs are spaced with the projections extending from the hubs and/or the beam.
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: August 15, 2000
    Assignee: Newell Operating Company
    Inventors: Bruce C. Polzin, Robert A. Shaffer, David L. Prins, Rand J. Krikorian, William W. Barton
  • Patent number: 5979009
    Abstract: A cage for a roller cover includes a plurality of hubs, a longitudinal support member interconnecting a plurality of hubs and a roller cover support surface integrally formed with the hubs and the support member. The roller cover support surface is resiliently biased outwardly beyond at least one of the hubs for resiliently engaging the roller cover.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: November 9, 1999
    Assignee: Newell Operating Co.
    Inventors: Bruce C. Polzin, Robert A. Shaffer, David L. Prins, Rand J. Krikorian, William W. Barton, Anthony W. Gilbert
  • Patent number: 5584092
    Abstract: A cage for a paint roller is composed as a one piece, unitary construction having a plurality of projections carried by a barrel portion of the cage, the projections making pressure contact with the inside of the bore in the center of the cover so as to prevent the cover from walking off the cage in use. The projections are formed to adapt to structural irregularities in the cover bore. A cage and cover sub-assembly and a paint roller incorporating the above is disclosed.
    Type: Grant
    Filed: February 6, 1995
    Date of Patent: December 17, 1996
    Assignee: Newell Operating Company
    Inventors: Bruce C. Polzin, Robert A. Shaffer, David L. Prins, Rand J. Krikorian, William W. Barton