Patents by Inventor Matthew A. Charles

Matthew A. Charles 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).

  • Tapered threaded puller head
    Patent number: 9968995
    Abstract: A puller head mold for receiving molten metal or alloy during the casting of an ingot, the puller head mold having a tapered screw thread structure. The tapered threaded puller head is used to pull and withdraw a cast ingot from a casting furnace, and can be particularly useful for the handling of ingots having a relatively narrow diameter. The tapered threaded puller head profile provides for full release of the tapered threaded puller head from a cast ingot in a fraction of a turn. The size and profile of the cast ingot formed with the tapered threaded puller head is resilient to thermal gradients while cooling.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: May 15, 2018
    Assignee: Retech Systems LLC
    Inventors: Matthew A. Charles, Paul G. Meese
  • System and method of melting raw materials
    Patent number: 9598747
    Abstract: A system and method for melting a raw material. The raw material is fed into an electrically conductive vessel. A plasma arc torch melts at least some of the raw material within the vessel to thereby create a molten material. An inductor, physically disposed adjacent the vessel, and electrically disposed in series with the vessel in operation, effects electromagnetic stirring of the molten material by interacting with the current of the plasma arc torch.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: March 21, 2017
    Assignee: RETECH SYSTEMS LLC
    Inventors: Robin A. Lampson, Robert E. Haun, Paul G. Meese, Matthew A. Charles, Edward C. Strout, Todd R. Telfer
  • TAPERED THREADED PULLER HEAD
    Publication number: 20160325346
    Abstract: A puller head mold for receiving molten metal or alloy during the casting of an ingot, the puller head mold having a tapered screw thread structure. The tapered threaded puller head is used to pull and withdraw a cast ingot from a casting furnace, and can be particularly useful for the handling of ingots having a relatively narrow diameter. The tapered threaded puller head profile provides for full release of the tapered threaded puller head from a cast ingot in a fraction of a turn. The size and profile of the cast ingot formed with the tapered threaded puller head is resilient to thermal gradients while cooling.
    Type: Application
    Filed: April 27, 2016
    Publication date: November 10, 2016
    Applicant: RETECH SYSTEMS LLC
    Inventors: MATTHEW A. CHARLES, PAUL G. MEESE
  • SYSTEM AND METHOD OF MELTING RAW MATERIALS
    Publication number: 20140182416
    Abstract: A system and method for melting a raw material. The raw material is fed into an electrically conductive vessel. A plasma arc torch melts at least some of the raw material within the vessel to thereby create a molten material. An inductor, physically disposed adjacent the vessel, and electrically disposed in series with the vessel in operation, effects electromagnetic stirring of the molten material by interacting with the current of the plasma arc torch.
    Type: Application
    Filed: September 18, 2013
    Publication date: July 3, 2014
    Applicant: Retech Systems LLC
    Inventors: Robin A. Lampson, Robert E. Haun, Paul G. Meese, Matthew A. Charles, Edward C. Strout, Todd R. Telfer
  • Threaded tapered mold
    Patent number: D764554
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: August 23, 2016
    Assignee: RETECH SYSTEMS LLC
    Inventors: Matthew A Charles, Paul G. Meese