Patents Assigned to Apollo Machine & Welding Ltd.
  • Hybrid process for enhanced surface hardening
    Patent number: 11491541
    Abstract: A hybrid method of surface hardening metallic components using a combination of chemical modification achieved through additive manufacturing and/or diffusion-based processing with transformation-based processing using a high energy density heat source. The hybrid process results in increased surface hardness and/or increased average case hardness and/or increased case depth compared to either treatment individually.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: November 8, 2022
    Assignee: APOLLO MACHINE & WELDING LTD.
    Inventors: Dakota Z. Jones, Gentry D. Wood, Douglas J. Hamre
  • Method of hardbanding a tubular component and a tubular component hardbanded in accordance with the method
    Patent number: 9816332
    Abstract: A method of hardbanding a tubular component. The method involves placing a helical band of hardbanding material forming spaced coils around an exterior wear surface of a body of the tubular component. The helical band has a helix angle of not less than 5 degrees relative to a longitudinal axis of the tubular component and the spacing between the coils is a minimum of 18 mm.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: November 14, 2017
    Assignee: Apollo Machine & Welding Ltd.
    Inventor: Douglas J Hamre