Patents by Inventor Levi M. Johnson

Levi M. Johnson 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).

  • Track tensioning system
    Patent number: 8556354
    Abstract: A tensioning system for a tracked vehicle. The present invention provides for adjusting tension of a track by moving the sprocket relative to the rollers in a substantially vertical direction. The system comprises a sprocket assembly, a roller assembly, a track, and a tension adjustment assembly. The tension adjustment assembly includes a tension bolt threaded through a tension nut. The bolt threads through the nut and contacts the roller assembly. As the bolt is threaded or unthreaded, the sprocket assembly is moved relative to the roller assembly in a substantially vertical direction. As the assemblies move relative to each other, tension in the track is resultantly adjusted.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: October 15, 2013
    Assignee: The Charles Machine Works, Inc.
    Inventors: Levi M. Johnson, David A. Rorabaugh
  • Track Tensioning System
    Publication number: 20120274130
    Abstract: A tensioning system for a tracked vehicle. The present invention provides for adjusting tension of a track by moving the sprocket relative to the rollers in a substantially vertical direction. The system comprises a sprocket assembly, a roller assembly, a track, and a tension adjustment assembly. The tension adjustment assembly includes a tension bolt threaded through a tension nut. The bolt threads through the nut and contacts the roller assembly. As the bolt is threaded or unthreaded, the sprocket assembly is moved relative to the roller assembly in a substantially vertical direction. As the assemblies move relative to each other, tension in the track is resultantly adjusted.
    Type: Application
    Filed: July 12, 2012
    Publication date: November 1, 2012
    Applicant: The Charles Machine Works, Inc.
    Inventors: Levi M. Johnson, David A. Rorabaugh
  • Track tensioning system
    Patent number: 8240783
    Abstract: A tensioning system for a tracked vehicle. The present invention provides for adjusting tension of a track by moving the sprocket relative to the rollers in a substantially vertical direction. The system comprises a sprocket assembly, a roller assembly, a track, and a tension adjustment assembly. The tension adjustment assembly includes a tension bolt threaded through a tension nut that is secured to the sprocket assembly. The bolt threads through the nut and contacts the roller assembly. As the bolt is threaded or unthreaded, the sprocket assembly is moved relative to the roller assembly in a substantially vertical direction. As the assemblies move relative to each other, tension in the track is resultantly adjusted.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: August 14, 2012
    Assignee: The Charles Machine Works, Inc.
    Inventors: Levi M. Johnson, David A. Rorabaugh
  • Track Tensioning System
    Publication number: 20100194188
    Abstract: A tensioning system for a tracked vehicle. The present invention provides for adjusting tension of a track by moving the sprocket relative to the rollers in a substantially vertical direction. The system comprises a sprocket assembly, a roller assembly, a track, and a tension adjustment assembly. The tension adjustment assembly includes a tension bolt threaded through a tension nut that is secured to the sprocket assembly. The bolt threads through the nut and contacts the roller assembly. As the bolt is threaded or unthreaded, the sprocket assembly is moved relative to the roller assembly in a substantially vertical direction. As the assemblies move relative to each other, tension in the track is resultantly adjusted.
    Type: Application
    Filed: August 3, 2009
    Publication date: August 5, 2010
    Applicant: The Charles Machine Works, Inc.
    Inventors: Levi M. Johnson, David A. Rorabaugh