Patents by Inventor Thomas R. Lyng

Thomas R. Lyng 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).

  • Patent number: 9585313
    Abstract: A stump cutter assembly that has a driven wheel with first and wheel side surfaces, and a first stump cutter tooth assembly operatively attaches to the first wheel side surface and a second stump cutter tooth assembly operatively attaches to the second wheel side surface. The first stump cutter tooth assembly includes a first stump cutter tooth and a first bi-directional pocket member that non-rotatably retains the first stump cutter tooth. The second stump cutter tooth assembly includes a second stump cutter tooth and a second bi-directional pocket member that non-rotatably retains the second stump cutter tooth. The first stump cutter tooth assembly is in general transverse alignment with the second stump cutter tooth assembly.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: March 7, 2017
    Inventors: Gary W. Kappel, Thomas R. Lyng, Cary D. Ritchey, Don C. Rowlett
  • Patent number: 8522843
    Abstract: A bi-directional pocket member that retains a stump cutter tooth. The pocket affixes to a selected wheel side surface of a driven wheel, which has a first wheel side surface and a second wheel side surface. The pocket member has a pocket body, which has a first pocket edge, a second pocket edge, a first pocket side surface, a second pocket side surface, a radial inward pocket portion and an integral radial outward pocket portion. The radial inward pocket portion contains attachment bores used to operatively attach the pocket member to the driven wheel. The radial outward portion contains a retention bore used to retain the stump cutter tooth.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: September 3, 2013
    Assignees: Kennametal Inc., Vermeer Manufacturing Company
    Inventors: Gary W Kappel, Thomas R Lyng, Cary D Ritchey, Don C Rowlett
  • Publication number: 20120012229
    Abstract: A stump cutter assembly that has a driven wheel with first and wheel side surfaces, and a first stump cutter tooth assembly operatively attaches to the first wheel side surface and a second stump cutter tooth assembly operatively attaches to the second wheel side surface. The first stump cutter tooth assembly includes a first stump cutter tooth and a first bi-directional pocket member that non-rotatably retains the first stump cutter tooth. The second stump cutter tooth assembly includes a second stump cutter tooth and a second bi-directional pocket member that non-rotatably retains the second stump cutter tooth. The first stump cutter tooth assembly is in general transverse alignment with the second stump cutter tooth assembly.
    Type: Application
    Filed: August 16, 2011
    Publication date: January 19, 2012
    Applicants: Vermeer Manufacturing Company, Kennametal Inc.
    Inventors: Gary W. Kappel, Thomas R. Lyng, Cary D. Ritchey, Don C. Rowlett
  • Patent number: 8020591
    Abstract: A stump cutter tooth held by a pocket member, which has first and second edge, and the pocket member being operatively attached to a driven wheel, which has opposite first and second side surfaces. The stump cutter tooth includes an elongate tooth body that has an axial forward end. A first hard region is at the axial forward end of the tooth body and defines at least one distinct cutting edge that has an orientation to engage the stump during operation. A second hard region is at the axial forward end of the tooth body and is distinct from the first hard region. The second hard region provides protection to at least a portion of the pocket member.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: September 20, 2011
    Assignees: Kennametal Inc., Vermeer Manufacturing Company
    Inventors: Gary W. Kappel, Thomas R. Lyng, Cary D. Ritchey, Don C. Rowlett
  • Publication number: 20110162756
    Abstract: A bi-directional pocket member that retains a stump cutter tooth. The pocket affixes to a selected wheel side surface of a driven wheel, which has a first wheel side surface and a second wheel side surface. The pocket member has a pocket body, which has a first pocket edge, a second pocket edge, a first pocket side surface, a second pocket side surface, a radial inward pocket portion and an integral radial outward pocket portion. The radial inward pocket portion contains attachment bores used to operatively attach the pocket member to the driven wheel. The radial outward portion contains a retention bore used to retain the stump cutter tooth.
    Type: Application
    Filed: March 15, 2011
    Publication date: July 7, 2011
    Applicant: Kennametal Inc.
    Inventors: Gary W. Kappel, Thomas R. Lyng, Cary D. Ritchey, Don C. Rowlett
  • Publication number: 20080149224
    Abstract: A stump cutter tooth held by a pocket member, which has first and second edge, and the pocket member being operatively attached to a driven wheel, which has opposite first and second side surfaces. The stump cutter tooth includes an elongate tooth body that has an axial forward end. A first hard region is at the axial forward end of the tooth body and defines at least one distinct cutting edge that has an orientation to engage the stump during operation. A second hard region is at the axial forward end of the tooth body and is distinct from the first hard region. The second hard region provides protection to at least a portion of the pocket member.
    Type: Application
    Filed: May 29, 2007
    Publication date: June 26, 2008
    Inventors: Gary W. Kappel, Thomas R. Lyng, Cary D. Ritchey, Don C. Rowlett