Patents by Inventor John H. Hradil

John H. Hradil 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).

  • Continuous loading apparatus
    Patent number: 4749326
    Abstract: An apparatus for continuously conveying ore and the like. A penetrator, rotatably disposed about a common coaxial horizontal axis shared by the forward section of a first conveyor, fluidizes a muck pile to continuously load material onto the first conveyor. Actuators for independently oscillating the penetrator and independently positioning the first conveyor are provided. An optional second conveyor may be employed to transport the material away from the first conveyor.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: June 7, 1988
    Assignee: Inco Limited
    Inventors: Richard Crawshay, John H. Hradil, Frank Bottomley, Bradley D. Toole
  • Continuous loading apparatus and method
    Patent number: 4648776
    Abstract: An apparatus and method for continuously conveying ore and the like. A penetrator, rotatably disposed about a common coaxial axis shared by the forward section of an endless conveyor, fluidizes a muck pile to continuously load material onto the conveyor. The conveyor, hinged approximately amidships, is mounted above a movable frame. Actuators for independently oscillating the penetrator is provided.
    Type: Grant
    Filed: September 12, 1984
    Date of Patent: March 10, 1987
    Assignee: Inco Limited
    Inventors: John H. Hradil, Frank Bottomley, Richard Crawshay