Patents by Inventor Anthony N. Skedgell

Anthony N. Skedgell 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).

  • Single phase glass compositions for use in protective and lubricating coatings for the heat treatment and hot working of metals
    Patent number: 4358544
    Abstract: The coatings are glass compositions which consist essentially of from 18 to 45 mol % of the alkaline oxides CaO and one or both of Na.sub.2 O and K.sub.2 O and from 5 to 22 mol % of Al.sub.2 O.sub.3, the balance being B.sub.2 O.sub.3 and SiO.sub.2 in such amounts that the molar ratio of B.sub.2 O.sub.3 : (B.sub.2 O.sub.3 +SiO.sub.2) lies in the range from 0.575:1 to 0.85:1. The molar ratio of K.sub.2 O: (K.sub.2 O+Na.sub.2 O) is from 0.4:1 to 0.6:1 and CaO is 48 to 52 mole % of the alkaline oxides.These compositions are particularly suitable for use during the heat-treatment and hot-working of titanium and its alloys.
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: November 9, 1982
    Assignee: Daniel Doncaster & Sons Limited
    Inventor: Anthony N. Skedgell