Patents by Inventor John Zbitnoff

John Zbitnoff 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).

  • Hydraulic excavator and compactor bucket therefor
    Patent number: 4698926
    Abstract: A hydraulic bucket-compactor assembly for a backhoe is disclosed which enables the operator of the backhoe to place and compact material with the backhoe eliminating the need for an extra piece of equipment for compaction. The bucket-compactor is attached to the dipper stick of the backhoe, and is controlled from the cab of the backhoe. A vibrating compactor has its drive unit positioned within the bucket and a leg extending from the drive unit through an opening in the bucket heel wall. A compactor is attached to the leg exterior of the bucket.
    Type: Grant
    Filed: May 22, 1986
    Date of Patent: October 13, 1987
    Assignee: Felco Industries, Ltd.
    Inventors: Thomas J. Caplis, John Zbitnoff