Patents by Inventor Mike Chartre

Mike Chartre 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).

  • Publication number: 20230417013
    Abstract: A cutter suction dredger includes a vessel, a ladder extending away from the vessel, a cutter head positioned at a distal end of the ladder and configured to contact a bed of the body of water to cut into the bed, and a bearing assembly. The bearing assembly includes a first spherical thrust bearing configured to resist thrust forces generated by the cutter head contacting the bed, a second spherical thrust bearing positioned opposite the first spherical thrust bearing, a symmetrical spherical bearing positioned between the first and second spherical thrust bearings, and a housing surrounding the first and second spherical thrust bearings and the symmetrical spherical bearing, the housing mounted to the ladder. A shaft extends along the ladder and through the bearings and the housing, the cutter head coupled to a distal end of the shaft.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 28, 2023
    Applicant: GREAT LAKES DREDGE & DOCK COMPANY, LLC
    Inventors: Mike Chartre, Edwin Hahlbeck