Patents by Inventor Robert H. Newman

Robert H. Newman 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).

  • Lubricating grease
    Patent number: 4435296
    Abstract: A light colored, open gear lubricating grease is formed from:a lubricating base oila clay thickenera combination of a polymer, preferably atactic polypropylene, and a particulate mineral, preferably zinc oxide, as tactifier and filler, andand alkali metal borate as EP additive.The ratio of polymer to mineral, may be from 1.5:1 to 1:1.5. An aromatic disulphide, preferably dibenzyl disulphide, may also be present as an EP additive and, if so, the wt. ratio of borate to disulphide may be from 5:1 to 7:1.
    Type: Grant
    Filed: May 22, 1981
    Date of Patent: March 6, 1984
    Assignee: The British Petroleum Company Limited
    Inventors: Christopher P. Brooks, Stanley C. Dodson, Robert H. Newman