Patents by Inventor Robert H. Krabill

Robert H. Krabill 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).

  • Method for joining of prefired or fired ceramics using sol gels
    Patent number: 4978410
    Abstract: A method of repairing a defect in or joining fired or unfired ceramic bodies by using a paste composed of a wet undried metal oxide gel consisting of Al.sub.2 O.sub.3, SiO.sub.2, MgO, ZrO.sub.2, Y.sub.2 O.sub.3, and mixtures thereof and joining the paste. A reinforcement material consisting of SiC, C, SiO.sub.2, Al.sub.2 O.sub.3, ZrO.sub.2, Y.sub.2 O.sub.3, MgO and mixtures thereof may be included in the paste.
    Type: Grant
    Filed: January 8, 1987
    Date of Patent: December 18, 1990
    Assignee: University of Florida
    Inventors: David E. Clark, Robert H. Krabill
  • Method of joining metal oxide containing ceramic bodies
    Patent number: 4861410
    Abstract: A method of repairing or joining a metal oxide, such as Al.sub.2 O.sub.3, containing ceramic bodies, fired or unfired by preparing a sol from a precursor of the metal oxide, mixing with a gelling agent, Al(NO.sub.3).sub.3, to form a paste, optionally adding a reinforcement of SiC particulate and heating at an elevated temperature, and a repair kit.
    Type: Grant
    Filed: January 16, 1987
    Date of Patent: August 29, 1989
    Assignee: University of Florida
    Inventors: David E. Clark, Robert H. Krabill