Patents by Inventor Henry E. Anthonis

Henry E. Anthonis 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).

  • Silica-doped, chrome-alumina monolithic refractory compositions
    Patent number: 4294618
    Abstract: A monolithic refractory composition including from about 63% to about 90% by weight high purity Al.sub.2 O.sub.3 ; from about 2% to 8% by weight crystalline silica having a particle size of -200 mesh; from about 2% to 6% by weight high purity Cr.sub.2 O.sub.3 ; from about 1% to 8% by weight high purity kaolin clay having a particle size of -10.mu. (micron); and from about 5% to 15% by weight phosphate binder. About 1-5% water may be substituted for Al.sub.2 O.sub.3. Preferably, the high purity Al.sub.2 O.sub.3 is a mixture of tabular alumina and calcined alumina and the phosphate binder is H.sub.3 PO.sub.4.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: October 13, 1981
    Assignee: General Refractories Company
    Inventor: Henry E. Anthonis