Patents by Inventor Theodore P. Cash

Theodore P. 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).

  • Dry heat setting refractory and methods of using same
    Patent number: 4253590
    Abstract: This disclosure involves a dry heat setting refractory and method of using same in the securing of nozzles to nozzle blocks in steel pour ladles. The refractory is sized so that it can be placed between the nozzle and nozzle block in a dry condition, and then forms an adhesive bond in situ, when molten steel is poured into the ladle and onto the refractory. The composition comprises a sized refractory material, preferably having MgO in the fines fraction, and includes the addition of about 2 to about 6% hydrated alkali silicate, preferably sodium silicate, which forms a refractory bond when engaged by the hot metal.
    Type: Grant
    Filed: August 23, 1979
    Date of Patent: March 3, 1981
    Assignee: Valley Mineral Products Corporation
    Inventors: John P. Holt, Theodore P. Cash
  • Dry heat setting refractory and methods of using same
    Patent number: 4231800
    Abstract: This disclosure involves a dry heat setting refractory and method of using same in the securing of nozzles to nozzle blocks in steel pour ladles. The refractory is sized so that it can be placed between the nozzle and nozzle block in a dry condition, and then forms an adhesive bond in situ, when molten steel is poured into the ladle and onto the refractory. The composition comprises a sized refractory material, preferably having MgO in the fines fraction, and includes the addition of about 2 to about 6% hydrated alkali silicate, preferably sodium silicate, which forms a refractory bond when engaged by the hot metal.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: November 4, 1980
    Assignee: Valley Mineral Products Corporation
    Inventors: John P. Holt, Theodore P. Cash