Patents by Inventor John W. Buckstead

John W. Buckstead 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: 4349308
    Abstract: A tractor mounted front end loader with a swingable boom assembly carrying a bucket, there being an ejector assembly for the bucket. The boom arms are shortened to place the center of gravity of the bucket proximal to the front tires of the loader, to place the cutting edge of the bucket closer to the center line of the front axle of the tractor; to place the boom to bucket pivot proximal to the surface upon which the loader is working and the cutting edge of the bucket in a horizontal plane slightly below that of the boom to bucket pivot, as compared with a loader without a bucket ejector assembly, to the end that bucket capacity is increased, reach and dump height are increased, cycle time is reduced and greater breakout force can be developed inasmuch as the bucket can be dumped, by use of the ejector assembly, while in a horizontal position. The ejector assembly includes upper and lower swingable panels within the bucket, hinged together with means for sealing the hinge.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: September 14, 1982
    Assignee: Paccar, Inc.
    Inventors: John W. Buckstead, Frederick J. Hoppe, Dennis W. Williams