Patents by Inventor R. Martin Wright

R. Martin Wright 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).

  • Turbine lubricant
    Patent number: 4171272
    Abstract: A turbine lubricant having outstanding oxidation stability, corrosion resistance and good viscosity stability is based on an alkyl phenyl phosphate ester and contains small amounts of benzotriazole, a mixed mono- and dialkylphosphate of the formula RH.sub.2 PO.sub.4 and R.sub.2 HPO.sub.4, wherein R is an alkyl group of 8-12 carbon atoms, and an antioxidant selected from the group consisting of:(a) a C.sub.12 to C.sub.18 alcohol ester of 3,3'-thiodipropionic acid;(b) pentaerythritol tetra(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, and(c) 4,4'-thiobis-(3-methyl-6-tert-butylphenol).
    Type: Grant
    Filed: December 2, 1977
    Date of Patent: October 16, 1979
    Assignee: FMC Corporation
    Inventor: R. Martin Wright
  • Use of tributoxyethylphosphate to control foam in the production of soda ash from trona
    Patent number: 4083939
    Abstract: Tributoxyethylphosphate is useful in controlling foam produced during the evaporative crystallization of calcined trona solutions. The chemical is effective at low concentrations, i.e. 1 to 30 ppm, and does not significantly alter the crystal habit of the sodium carbonate crystals.
    Type: Grant
    Filed: March 22, 1977
    Date of Patent: April 11, 1978
    Assignee: FMC Corporation
    Inventors: Walter Lobunez, Joseph M. Ilardi, R. Martin Wright, Allan P. Herring