Patents by Inventor Marvin H. Newell

Marvin H. Newell 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).

  • Guidance system for tracklaying tractors
    Patent number: 4298084
    Abstract: A guidance system for a track laying tractor in which a furrow following device attached to the track frame senses the distance from the furrow to the tractor and signals the operator or the hydraulic steering system and consists briefly of a sight wheel mounted orthogonally to the rear sprocket, cone wheels mounted for transverse movement orthogonally to the front idler, a bar rigidly attached to the cone wheels and universally to the rear sight wheel mounting and transmittal means for transmitting the distance of the furrow to the tractor and receiver means for indicating the distance to the tractor operator.
    Type: Grant
    Filed: April 10, 1980
    Date of Patent: November 3, 1981
    Inventor: Marvin H. Newell