Patents by Inventor Craig A. Seasholtz

Craig A. Seasholtz 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: 4709436
    Abstract: A rotary brush sweeper includes a debris pan with an inlet portion that glides on a surface being cleaned. The debris pan automatically disengages from the sweeper upon being engaged by an obstacle in the path of the sweeper. The debris pan is configured with an inlet portion or scoop for directing debris propelled by a rotary brush into the debris pan. The scoop portion has a first upwardly and rearwardly inclined surface and a second surface beneath the first surface and facing downwardly. A low friction material covers the first and second surfaces of the scoop to facilitate collection of debris into the debris pan. The covering may include an integrally formed tip portion of abrasion-resistant material, and is preferably configured in cooperation with the scoop to mechanically grip onto the scoop without the need for screws or adhesives.
    Type: Grant
    Filed: October 16, 1986
    Date of Patent: December 1, 1987
    Assignee: Shop-Vac Corporation
    Inventors: Robert C. Berfield, Craig A. Seasholtz, Richard M. Fegan
  • Patent number: 4701969
    Abstract: A rotary brush sweeper includes a debris pan with an inlet portion that glides on a surface being cleaned. The debris pan automatically disengages from the sweeper upon being engaged by an obstacle in the path of the sweeper. Rotary brooms may be attached to the left and right front sides of the sweeper. The support structure for the front wheel provides broom-to-ground height adjustment for the side brooms. Additionally, brush-to-ground height adjustment is obtained through a support structure for the front wheel. The axle of the rotary brush is held in place under the tension of a drive belt for the rotary brush.
    Type: Grant
    Filed: October 15, 1986
    Date of Patent: October 27, 1987
    Assignee: Shop-Vac Corporation
    Inventors: Robert C. Berfield, Craig A. Seasholtz, Richard M. Fegan
  • Patent number: 4623366
    Abstract: A wet/dry cannister-type vacuum cleaner is provided with a plastic grid unit that includes a spherical cup-like main section, an upper annular mounting lip, a short tubular support disposed within the main section with the lower end of the support surrounding a central inlet opening in the latter, and a grid extending across the support at the top thereof and disposed below the mounting lip. The lower end of the support constitutes a seat for a floating ball valve element. An axially extending slot in the support provides a drain for liquid that may be accumulated by the main section at the interior thereof.
    Type: Grant
    Filed: September 20, 1985
    Date of Patent: November 18, 1986
    Assignee: Shop-Vac Corporation
    Inventors: Robert C. Berfield, Rudolph W. Wacek, Craig Seasholtz
  • Patent number: D289933
    Type: Grant
    Filed: July 1, 1986
    Date of Patent: May 19, 1987
    Assignee: Shop-Vac Corporation
    Inventors: Robert C. Berfield, Craig A. Seasholtz, Richard M. Fegan