Patents by Inventor Nathan G. Bergquist

Nathan G. Bergquist 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).

  • Synthetic field grooming processes and conditioning grooming apparatus
    Patent number: 9371617
    Abstract: Disclosed is a synthetic athletic field grooming apparatus configured to be pulled by a vehicle to maintain the synthetic athletic field. The apparatus comprises a frame having a coupling mechanism for mounting the apparatus to the vehicle. At least one broom channel is coupled to the frame rearward of the coupling mechanism, and forward and aft rows of brushes are attached to the broom channel. The aft row of brushes is spaced apart from and rearward of the forward row of brushes to allow infill of the synthetic athletic field to flick upward from the forward row while containing the infill for re-agitation from the aft row. The coupling mechanism and the frame allow an attached vehicle to control a downward pressure forcing the rows of brushes into contact with the synthetic athletic field with a desired force. Also disclosed is a method of grooming a synthetic athletic field.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: June 21, 2016
    Assignee: Kromer Co. LLC
    Inventors: Troy D. Thunstrom, Nathan G. Bergquist, Alan L. Hentges, Brian C. Bergquist, Ronald C. Ponath, Ingo V. Werner
  • SYNTHETIC FIELD GROOMING PROCESSES AND CONDITIONING GROOMING APPARATUS
    Publication number: 20140096984
    Abstract: Disclosed is a synthetic athletic field grooming apparatus configured to be pulled by a vehicle to maintain the synthetic athletic field. The apparatus comprises a frame having a coupling mechanism for mounting the apparatus to the vehicle. At least one broom channel is coupled to the frame rearward of the coupling mechanism, and forward and aft rows of brushes are attached to the broom channel. The aft row of brushes is spaced apart from and rearward of the forward row of brushes to allow infill of the synthetic athletic field to flick upward from the forward row while containing the infill for re-agitation from the aft row. The coupling mechanism and the frame allow an attached vehicle to control a downward pressure forcing the rows of brushes into contact with the synthetic athletic field with a desired force. Also disclosed is a method of grooming a synthetic athletic field.
    Type: Application
    Filed: October 10, 2013
    Publication date: April 10, 2014
    Applicant: Kromer Co. LLC
    Inventors: Troy D. Thunstrom, Nathan G. Bergquist, Alan L. Hentges, Brian C. Bergquist, Ronald C. Ponath, Ingo V. Werner
  • Athletic field maintainer
    Patent number: D637625
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: May 10, 2011
    Assignee: Kromer Co. LLC
    Inventors: Troy D. Thunstrom, Brian C. Bergquist, Nathan G. Bergquist, Sebastian P. Jacobson, Carl L. Drase, Rodney C. Boos, Ronald C. Ponath
  • Tank for athletic field maintainer
    Patent number: D663325
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: July 10, 2012
    Assignee: Kromer Co. LLC
    Inventors: Troy D. Thunstrom, Brian C. Bergquist, Nathan G. Bergquist, Sebastian P. Jacobson, Carl L. Drase, Rodney C. Boos, Ronald C. Ponath