Patents by Inventor Clifford E. Couture

Clifford E. Couture 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).

  • Self sintering ceramic composition, articles and process
    Patent number: 5912201
    Abstract: A shaped ceramic article capable of being cut manually into selected sizes and process is based on a mixture of high-temperature resistant ceramic fibers and fibers which soften at temperatures below 2000.degree. F., particles of a ceramic material stable to temperatures exceeding 2000.degree. F., particles of a ceramic material which sinter at temperatures below 2000.degree. F., and a binder which provides green strength to shapes formed by vacuum formation from a slurry. The vacuum formed shape is dried at about 400.degree. F., thereby dried to form a shape which is preferably dipped in colloidal alumina or silica and dried again. The shape is sinterable by contact with flowing molten metal or by being sujected to radiant heat to form a hardened shape-stable ceramic form.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: June 15, 1999
    Assignee: Fiber Ceramics, Inc.
    Inventors: Clifford E. Couture, Paul A. Schumacher, Orville C. Clemmons
  • Process of making a self sintering ceramic composition
    Patent number: 5691259
    Abstract: A shaped ceramic article capable of being cut manually into selected sizes and process is based on a mixture of high-temperature resistant ceramic fibers and fibers which soften at temperatures below 2000.degree. F., particles of a ceramic material stable to temperatures exceeding 2000.degree. F., particles of a ceramic material which sinter at temperatures below 2000.degree. F., and a binder which provides green strength to shapes formed by vacuum formation from a slurry. The vacuum formed shape is dried at about 400.degree. F., thereby dried to form a shape which is preferably dipped in colloidal alumina or silica and dried again. The shape is sinterable by contact with flowing molten metal or by being sujected to radiant heat to form a hardened shape-stable ceramic form.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: November 25, 1997
    Assignee: Fiber Ceramics, Inc.
    Inventors: Clifford E. Couture, Paul A. Schumacher, Orville C. Clemmons
  • Riser for molten metal mold
    Patent number: D428900
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: August 1, 2000
    Assignee: Joy Mark, Inc.
    Inventor: Clifford E Couture