Patents by Inventor Derek W. Couse

Derek W. Couse 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).

  • Safety door for rotary kiln
    Patent number: 8057225
    Abstract: A safety door for covering openings in a rotary kiln during maintenance operations on the rotary kiln. The door is affixed to the exterior surface of the rotary kiln and includes a hatch pivotally secured at one side edge thereof by a pivot rod to a frame. A plurality of tension coil springs are disposed on the pivot rod and continuously bias the hatch toward the opening with a force of approximately 400 pounds.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: November 15, 2011
    Assignee: Mitsubishi Cement Corporation
    Inventors: Derek W. Couse, Manuel Sandoval
  • SAFETY DOOR FOR ROTARY KILN
    Publication number: 20100021856
    Abstract: A safety door for covering openings in a rotary kiln during maintenance operations on the rotary kiln. The door is affixed to the exterior surface of the rotary kiln and includes a hatch pivotally secured at one side edge thereof by a pivot rod to a frame. A plurality of tension coil springs are disposed on the pivot rod and continuously bias the hatch toward the opening with a force of approximately 400 pounds.
    Type: Application
    Filed: October 5, 2009
    Publication date: January 28, 2010
    Inventors: Derek W. Couse, Manuel Sandoval
  • Safety door for rotary kiln
    Patent number: 7621741
    Abstract: A safety door for covering openings in a rotary kiln during maintenance operations on the rotary kiln. The door is affixed to the exterior surface of the rotary kiln and includes a hatch pivotally secured at one side edge thereof by a pivot rod to a frame. A plurality of tension coil springs are disposed on the pivot rod and continuously bias the hatch toward the opening with a force of approximately 400 pounds.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: November 24, 2009
    Assignee: Mitsubishi Cement Corporation
    Inventors: Derek W. Couse, Manuel Sandoval
  • SAFETY DOOR FOR ROTARY KILN
    Publication number: 20080305448
    Abstract: A safety door for covering openings in a rotary kiln during maintenance operations on the rotary kiln. The door is affixed to the exterior surface of the rotary kiln and includes a hatch pivotally secured at one side edge thereof by a pivot rod to a frame. A plurality of tension coil springs are disposed on the pivot rod and continuously bias the hatch toward the opening with a force of approximately 400 pounds.
    Type: Application
    Filed: June 11, 2007
    Publication date: December 11, 2008
    Inventors: Derek W. Couse, Manuel Sandoval