Patents by Inventor Thomas S. Cushman

Thomas S. Cushman 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).

  • Battery powered shuttle car
    Patent number: 7770673
    Abstract: A battery powered shuttle car (10) incorporates features and components that facilitate use and operation and effect efficient application in a mining environment. The shuttle car (10) incorporates at least one battery (20) that is secured to the vehicle frame (11) between one of a left front wheel (17) and a left rear wheel (17) or the right front wheel (17) and the right rear wheel (17). A battery change-over mechanism (51) facilitates battery replacement. Additionally, the shuttle car (10) may be provided with an integral discharge end (81) having a substantially fixed height (82). A full load indicator mechanism (83) provides an indication when the conveyor (16) is substantially full to maximize use and operation of the shuttle car (10).
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: August 10, 2010
    Assignee: Phillips Machine Service, Inc.
    Inventors: Claude R. Allen, Thomas S. Cushman, Jimmy A. Hickok, Purnal L. McWhorter
  • SHUTTLE CAR WITH FIXED HEIGHT DISCHARGE BOOM
    Publication number: 20040134694
    Abstract: A battery powered shuttle car (10) incorporates features and components that facilitate use and operation and effect efficient application in a mining environment. The shuttle car (10) incorporates at least one battery (20) that is secured to the vehicle frame (11) between one of a left front wheel (17) and a left rear wheel (17) or the right front wheel (17) and the right rear wheel (17). A battery change-over mechanism (51) facilitates battery replacement. Additionally, the shuttle car (10) may be provided with an integral discharge end (81) having a substantially fixed height (82). A full load indicator mechanism (83) provides an indication when the conveyor (16) is substantially full to maximize use and operation of the shuttle car (10).
    Type: Application
    Filed: January 6, 2004
    Publication date: July 15, 2004
    Applicant: Phillips Machine Service, Inc.
    Inventors: Claude R. Allen, Thomas S. Cushman, Jimmy A. Hickok, Purnal L. McWhorter
  • Battery powered shuttle car
    Publication number: 20030205421
    Abstract: A battery powered shuttle car (10) incorporates features and components that facilitate use and operation and effect efficient application in a mining environment. The shuttle car (10) incorporates at least one battery (20) that is secured to the vehicle frame (11) between one of a left front wheel (17) and a left rear wheel (17) or the right front wheel (17) and the right rear wheel (17). A battery change-over mechanism (51) facilitates battery replacement. Additionally, the shuttle car (10) may be provided with an integral discharge end (81) having a substantially fixed height (82). A full load indicator mechanism (83) provides an indication when the conveyor (16) is substantially full to maximize use and operation of the shuttle car (10).
    Type: Application
    Filed: April 2, 2003
    Publication date: November 6, 2003
    Inventors: Claude R. Allen, Thomas S. Cushman, Jimmy A. Hickok, Purnal L. McWhorter