Patents by Inventor Carlton Cash

Carlton Cash 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).

  • Control of casting machine
    Patent number: 7770628
    Abstract: Control is provided over the pouring of iron in the casting of iron pipe in a centrifugal casting machine. The initial flow of molten iron from the pouring ladle into the trough actuates an electric eye. A second electric eye is actuated when the molten iron has filled the pouring ladle. The centrifugal casting machine is rolled up to surround the trough, the bell end of the pipe to be formed being at the end of the trough. The molten iron is poured into the casting machine trough and flows into the bell section of the pipe being cast. The casting machine is then moved away from the trough end to form the rest of the pipe.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: August 10, 2010
    Assignee: Griffin Pipe Products Company, Inc.
    Inventors: John P. Simpson, Carlton Cash, Brian Firtion
  • Control of casting machine
    Publication number: 20090090483
    Abstract: Control is provided over the pouring of iron in the casting of iron pipe in a centrifugal casting machine. The initial flow of molten iron from the pouring ladle into the trough actuates an electric eye. A second electric eye is actuated when the molten iron has filled the pouring ladle. The centrifugal casting machine is rolled up to surround the trough, the bell end of the pipe to be formed being at the end of the trough. The molten iron is poured into the casting machine trough and flows into the bell section of the pipe being cast. The casting machine is then moved away from the trough end to form the rest of the pipe.
    Type: Application
    Filed: October 4, 2007
    Publication date: April 9, 2009
    Inventors: John P. Simpson, Carlton Cash, Brian Firtion