Patents by Inventor James Duncan McLean

James Duncan McLean 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: 4062457
    Abstract: This invention relates to a loading device suitable for lifting bales onto a tiltable loading platform of a vehicle. The device employs a framework such as a plurality of longitudinal and transverse members which are secured to a loading platform. The transverse members extend rearwardly of the platform so that when it is tilted, the rearmost end of the transverse members are proximate the ground. These ends are in turn pivotally connected to a plurality of forks. The obtuse angle between the longitudinal members and the forks is adjustably limited so that the forks lie in a substantially horizontal plane when the loading platform is tilted. Bales are loaded onto the platform after the forks have been placed under the bales and the tilted platform returned to its normal horizontal position.
    Type: Grant
    Filed: August 6, 1976
    Date of Patent: December 13, 1977
    Inventor: James Duncan McLean