Patents by Inventor Garry N. Drummond

Garry N. Drummond 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).

  • Method for open pit bench mining
    Patent number: 8366201
    Abstract: A bench mining method, particularly useful for open pit bench mining, which employs a combination of bulldozers and transversely movable apron feeders to provide the primary mechanism for removal of overburden.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: February 5, 2013
    Assignee: Drummond Company, Inc.
    Inventors: Garry N. Drummond, Eugene Honeycutt, Harold Gene Anderson
  • METHOD FOR OPEN PIT BENCH MINING
    Publication number: 20100171360
    Abstract: A bench mining method, particularly useful for open pit bench mining, which employs a combination of bulldozers and transversely movable apron feeders to provide the primary mechanism for removal of overburden.
    Type: Application
    Filed: March 22, 2010
    Publication date: July 8, 2010
    Applicant: Drummond Company, Inc.
    Inventors: Garry N. Drummond, Eugene Honeycutt, Harold Gene Anderson
  • Method and apparatus for open pit bench mining
    Patent number: 7726465
    Abstract: A bench mining system and mining method, particularly useful for open pit bench mining, employs a combination of bulldozers and transversely movable apron feeders to provide the primary mechanism for removal of overburden. The apron feeders are preferably equipped with a self-cleaning arrangement to facilitate continuous operation without undue stoppages.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: June 1, 2010
    Assignee: Drummond Company, Inc.
    Inventors: Garry N. Drummond, Eugene Honeycutt, Harold Gene Anderson