Patents by Inventor Gregory George Kratofil

Gregory George Kratofil 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).

  • Hammer assembly for a rotary material crusher
    Patent number: 7975949
    Abstract: A hammer assembly for attachment to a rotor of a rotary material crusher. The hammer assembly has an adaptor, having a base portion and a hammer mounting portion, with the base portion being attachable to the rotor at the periphery portion and a hammer, having at least one impact portion, for crushing material, and a mounting portion for engagement with the hammer mounting portion of the adaptor. The hammer mounting portion of the adaptor includes bearing surfaces facing a direction of impact when crushing material, and the mounting portion of the hammer includes bearing surfaces for mating with the bearing surfaces of the hammer mounting portion of the adaptor. The hammer assembly further includes a retainer rod, and at least one retainer pin. The hammer is attached to the adaptor and the retainer rod passes through apertures of the adaptor and apertures of each retainer pin in the direction of the longitudinal axes of the hammer and the adaptor.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: July 12, 2011
    Inventors: Gregory Kurt Orphall, Gregory George Kratofil
  • HAMMER ASSEMBLY FOR A ROTARY MATERIAL CRUSHER
    Publication number: 20100019075
    Abstract: A hammer assembly for attachment to a rotor of a rotary material crusher. The hammer assembly has an adaptor, having a base portion and a hammer mounting portion, with the base portion being attachable to the rotor at the periphery portion and a hammer, having at least one impact portion, for crushing material, and a mounting portion for engagement with the hammer mounting portion of the adaptor. The hammer mounting portion of the adaptor includes bearing surfaces facing a direction of impact when crushing material, and the mounting portion of the hammer includes bearing surfaces for mating with the bearing surfaces of the hammer mounting portion of the adaptor. The hammer assembly further includes a retainer rod, and at least one retainer pin. The hammer is attached to the adaptor and the retainer rod passes through apertures of the adaptor and apertures of each retainer pin in the direction of the longitudinal axes of the hammer and the adaptor.
    Type: Application
    Filed: July 17, 2009
    Publication date: January 28, 2010
    Inventors: Gregory Kurt Orphall, Gregory George Kratofil