Patents by Inventor Robert D. Donovan

Robert D. Donovan 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: 7594459
    Abstract: A sawing apparatus and a saw fence. The saw apparatus may include a work surface. The saw may include a rail system disposed along the edges of the work surface, for the attachment of accessories thereto. The saw may be provided with workpiece guide adapted to be attached to the rail system for guiding workpieces during the operation of the saw. The workpiece guide may also be provided with an infeed extension that rides on the rail system and is capable of supporting workpieces during the operation of the saw. The infeed extension may be adjustable relative to the work surface of the saw. The saw may further be provided with a debris collection system for the collection of debris produced by the cutting operations of the saw.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: September 29, 2009
    Assignee: Delta International Machinery Corp.
    Inventors: David Miller, Robert D. Donovan, Delwyn N. Pounders, Jerry W. Ford
  • Patent number: 4711032
    Abstract: A portable sawmill (20) having a frame (22) adapted to be disposed transversely of a log (24). A pair of horizontally spaced apart wheels (26a,b) are adapted to straddle the log (24). The wheels (26a,b) are rotatably supported by the frame (22) for rotation in a substantially vertical plane. A band saw blade (28) is trained around the wheels (26a,b) and for movement transversely of the log (24). An engine (30) is provided for rotating at least one of the wheels (26a,b) to cause the band saw blade (28) to form a cut in the log (24) as the frame (22) is moved longitudinally along the log (24). An elevating assembly (44) is provided for supporting the frame (22) so as to enable vertical adjustment of the band saw blade (28) relative to a top surface of the log (24). Guide rollers (40) are interconnected through the frame (22) for guiding the frame (22) along the log (24).
    Type: Grant
    Filed: September 5, 1985
    Date of Patent: December 8, 1987
    Assignee: Delta International Machinery Corp.
    Inventors: Clifford P. Rickmers, Robert D. Donovan, Louis C. Brickner, Jr.
  • Patent number: D349121
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: July 26, 1994
    Assignee: Delta International Machinery Corp.
    Inventors: W. Steven Holley, Robert D. Donovan, Dennis C. Palmer, William G. Pittman, Richard J. Hutcheson
  • Patent number: D426083
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: June 6, 2000
    Assignee: Delta International Machinery Corp.
    Inventors: Robert D. Donovan, Delwyn N. Pounders, Jerry W. Ford
  • Patent number: D433427
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: November 7, 2000
    Assignee: Delta International Machinery Corp.
    Inventors: Robert D. Donovan, Delwyn N. Pounders