Patents by Inventor Craig P. Halfmann

Craig P. Halfmann 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).

  • Tool bar with quick release tool lock
    Patent number: 5042587
    Abstract: A tool bar is provided with rotatable tool carrying sections having a quick release lock.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: August 27, 1991
    Assignee: H & S Manufacturing, Inc.
    Inventor: Craig P. Halfmann
  • Adjustable sugar beet harvester lifter wheel filler spokes
    Patent number: 4942927
    Abstract: A lifter wheel filler spoke assembly designed for permanent installation on a lifter wheel. The filler spoke assembly is comprised of a ring plate with filler spokes equally spaced about the circumference of the ring plate, with the ring plate being provided with a plurality of slots used for attaching the assembly to the lifter wheel. The slots allow the filler spoke assembly to be rotated between a closed and open position.
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: July 24, 1990
    Inventor: Craig P. Halfmann