Patents by Inventor Roger Kauffman

Roger Kauffman 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).

  • Publication number: 20220348127
    Abstract: A sideboard loading attachment for a utility vehicle includes a pair of lift arms coupled to box sides of the vehicle, a crossbar extending between distal ends of the projection arms, and a pair of lift actuators for raising and lowering the lift arms, whose distal ends can extend rearwardly from the vehicle when fully extended. A cable hoist is coupled to the utility vehicle and has a cable reeved over a pulley at the crossbar. The cable hoist raises and lowers the cable at the crossbar, and the lift actuators actuate the lift arms to raise a load up forwardly over the box of the utility vehicle.
    Type: Application
    Filed: April 7, 2022
    Publication date: November 3, 2022
    Inventor: David Roger Kauffman
  • Patent number: 6709234
    Abstract: An impeller shaft assembly, coupler and molten metal pump are described, in which a coupling member is configured to be secured to a pump drive shaft and includes a socket part that is defined by a socket wall formed about and extending along an axis. The socket wall includes a plurality of coupling shaft engaging surfaces and a plurality of socket corner surfaces joining the shaft engaging surfaces. The socket corner surfaces are disposed radially outward from adjacent shaft engaging surfaces with respect to the axis.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: March 23, 2004
    Assignee: Pyrotek, Inc.
    Inventors: Ronald E. Gilbert, Robert D. Dion, Mark A. Palmer, Kristopher M. Ratzlaff, Roger Kauffman, Charles Seale
  • Publication number: 20030044273
    Abstract: An impeller shaft assembly, coupler and molten metal pump are described, in which a coupling member is configured to be secured to a pump drive shaft and includes a socket part that is defined by a socket wall formed about and extending along an axis. The socket wall includes a plurality of coupling shaft engaging surfaces and a plurality of socket corner surfaces joining the shaft engaging surfaces. The socket corner surfaces are disposed radially outward from adjacent shaft engaging surfaces with respect to the axis.
    Type: Application
    Filed: August 31, 2001
    Publication date: March 6, 2003
    Inventors: Ronald E. Gilbert, Robert D. Dion, Mark A. Palmer, Kristopher M. Ratzlaff, Roger Kauffman, Charles Seale