Patents by Inventor Albert J. Berleue

Albert J. Berleue 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).

  • Liquid level gauge
    Patent number: 4088023
    Abstract: A gauge for exhibiting the liquid level in a container of alkaline liquid, for example a boiler or radiator gauge, is disclosed. The gauge includes a glass component composed at least in part of a glass consisting essentially of 20-50% SiO.sub.2, 3-40% Y.sub.2 O.sub.3, 5-25% of a divalent metal oxide and 0-30% Al.sub.2 O.sub.3. Other features of the invention include use of an yttrium concentrate in producing the glass and a composite glass component wherein only a facing portion is composed of the yttrium glass.
    Type: Grant
    Filed: January 16, 1976
    Date of Patent: May 9, 1978
    Assignee: Corning Glass Works
    Inventors: Albert J. Berleue, William H. Dumbaugh, Jr.