Patents by Inventor Daryl E. Bolejack

Daryl E. Bolejack 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).

  • Mud Motor Bearing Assembly and Method
    Publication number: 20160194915
    Abstract: A mud motor bearing assembly for use in drilling a hydrocarbon well. The bearing assembly includes a bearing section containing stationary bearing rigs and rotating bearing rings in stacked arrangement. The bearing rings have wedge-shaped projections. The wedge-shaped projections of two adjacent stationary bearing rings form a recess to accommodate the projection of a rotating bearing ring in sliding engagement. The bearing assembly is capable of bearing both radial and axial loads.
    Type: Application
    Filed: January 8, 2016
    Publication date: July 7, 2016
    Applicant: Ashmin, LC
    Inventors: Gunther HH von Gynz-Rekowski, William C. Herben, Daryl E. Bolejack
  • Mud motor bearing assembly and method
    Patent number: 9267539
    Abstract: A mud motor bearing assembly for use in drilling a hydrocarbon well. The bearing assembly includes a bearing section containing stationary bearing rigs and rotating bearing rings in stacked arrangement. The bearing rings have wedge-shaped projections. The wedge-shaped projections of two adjacent stationary bearing rings form a recess to accommodate the projection of a rotating bearing ring in sliding engagement. The bearing assembly is capable of bearing both radial and axial loads.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: February 23, 2016
    Assignee: Ashmin, LC
    Inventors: Gunther HH Von Gynz-Rekowski, William C. Herben, Daryl E. Bolejack
  • Mud Motor Bearing Assembly and Method
    Publication number: 20130299243
    Abstract: A mud motor bearing assembly for use in drilling a hydrocarbon well. The bearing assembly includes a bearing section containing stationary bearing rigs and rotating bearing rings in stacked arrangement. The bearing rings have wedge-shaped projections. The wedge-shaped projections of two adjacent stationary bearing rings form a recess to accommodate the projection of a rotating bearing ring in sliding engagement. The bearing assembly is capable of bearing both radial and axial loads.
    Type: Application
    Filed: May 11, 2012
    Publication date: November 14, 2013
    Inventors: Gunther HH von Gynz-Rekowski, William C. Herben, Daryl E. Bolejack