Patents by Inventor Benjamin James Boyce

Benjamin James Boyce 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).

  • Vibrating screen
    Patent number: 6953121
    Abstract: A vibrating screen assembly supported by springs is provided which is used to size separate rock and other material. The present invention includes increasing the natural frequency of the screen assembly by stiffening the individual screen decks of the screen assembly, to enable the screen assembly to operate at higher operating speeds without prematurely failing.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: October 11, 2005
    Assignee: Johnson Crushers International
    Inventors: Lawrence Calvin Olsen, Benjamin James Boyce
  • Vibrating screen
    Publication number: 20040222135
    Abstract: A vibrating screen assembly supported by springs is provided which is used to size separate rock and other material. The present invention includes increasing the natural frequency of the screen assembly by stiffening the individual screen decks of the screen assembly, to enable the screen assembly to operate at higher operating speeds without prematurely failing.
    Type: Application
    Filed: May 5, 2003
    Publication date: November 11, 2004
    Inventors: Lawrence Calvin Olsen, Benjamin James Boyce