Patents by Inventor Kris E. Strothmann

Kris E. Strothmann 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).

  • Roof drill bit, roof drill bit body and hard cutting insert for roof drill bit
    Patent number: 8002054
    Abstract: A roof drill bit has an elongate roof drill bit body, which has a forward end and a rearward end. The roof drill bit body contains a slot at the forward end. The roof drill bit body contains a dust port wherein the dust port has a central longitudinal dust axis. The roof drill bit further has a hard insert received within the slot wherein the hard insert has a leading surface. The leading surface of the hard insert is rotationally forward of the central longitudinal dust axis of the dust port.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: August 23, 2011
    Assignee: Kennametl Inc.
    Inventors: Chad A. Swope, Douglas E. Bise, Kris E. Strothmann, Tod D. Hill
  • Roof drill bit, roof drill bit body and hard cutting insert for roof drill bit
    Publication number: 20100187019
    Abstract: A roof drill bit has an elongate roof drill bit body, which has a forward end and a rearward end. The roof drill bit body contains a slot at the forward end. The roof drill bit body contains a dust port wherein the dust port has a central longitudinal dust axis. The roof drill bit further has a hard insert received within the slot wherein the hard insert has a leading surface. The leading surface of the hard insert is rotationally forward of the central longitudinal dust axis of the dust port.
    Type: Application
    Filed: January 26, 2009
    Publication date: July 29, 2010
    Applicant: Kennametal Inc.
    Inventors: Chad A. Swope, Douglas E. Bise, Kris E. Strothmann, Tod D. Hill