Patents by Inventor Donald G. Castine

Donald G. Castine 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).

  • Operator's cab for off-highway vehicle
    Patent number: 4152022
    Abstract: A cab intended for use as the operator's cab of a tree harvester vehicle has an access door in the leading surface of the cab. The cab door frame, and the access door, are defined by square tubes which are turned 45.degree. with respect to the plane of the door opening to define oblique interfaces between the door edge faces and the door opening faces.
    Type: Grant
    Filed: August 31, 1977
    Date of Patent: May 1, 1979
    Assignee: Eaton Yale Ltd.
    Inventor: Donald G. Castine
  • Apparatus for processing trees
    Patent number: 4109689
    Abstract: A method and apparatus for processing trees in which a clamp holding a severed tree for processing pulls the tree through a set of delimbing blades, while at the same time the blades are moved in the opposite direction along the tree trunk. A system of pulleys and cables driven by a single hydraulic cylinder moves a movable boom and a processing head in one direction relative to a stationary boom, while a clamp assembly is moved in the opposite direction relative to the stationary boom.
    Type: Grant
    Filed: June 16, 1977
    Date of Patent: August 29, 1978
    Assignee: Eaton Yale Ltd.
    Inventor: Donald G. Castine