Patents by Inventor Mitchell Whittaker

Mitchell Whittaker 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).

  • Methods and apparatus for crushing and handling rock
    Publication number: 20070029417
    Abstract: Crushed rock is produced by passing rocks through an early stage rock crusher. Crushed rocks that exit the early stage rock crusher are passed across a sizing device. Rocks failing to pass completely through the sizing device are recrushed in a later-stage rock crusher and then passed downwardly through a high-volume air stream which flows within the crusher transversely through the downwardly traveling crushed rocks and extracts fines therefrom prior to exiting of the crushed rocks from the crusher. The fines extracted by the air stream are at least 50% minus 50-mesh.
    Type: Application
    Filed: August 3, 2005
    Publication date: February 8, 2007
    Applicant: VULCAN MATERIALS COMPANY
    Inventor: Mitchell Whittaker