Patents by Inventor Robert Kenneth Stringer

Robert Kenneth Stringer 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).

  • Ceramic oxygen probe
    Patent number: 4046661
    Abstract: A probe for use in measuring the oxygen concentration of fluids comprising a disc or pellet of solid electrolyte located at or near the end of a ceramic tube, and an electrode within the tube contacting the inner face of the pellet, characterized in that the ceramic tube is constructed of alumina, mullite or an aluminous porcelain containing at least 4 per cent by weight of free alumina and not more than 40 per cent by weight silica, and the electrolyte is sealed to the tube by a fusion weld.
    Type: Grant
    Filed: April 14, 1972
    Date of Patent: September 6, 1977
    Assignee: Commonwealth Scientific and Industrial Research Organization
    Inventors: Robert Kenneth Stringer, Kenneth Alan Johnston