Patents Represented by Attorney Joseph P. Fishcer

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  • Gear lubricant composition
    Patent number: 5523005
    Abstract: Gear oil compositions are described which comprise a lubricating base oil having dissolved therein:(A) at least one phosphite ester characterized by the formula: ##STR1## wherein R.sup.1 and R.sup.2 are hydrocarbyl based groups of from 1 to 30 carbon atoms and(B) at least one metal overbased composition.Another embodiment of the invention comprises the above-mentioned (A) and (B) with(C) a sulfurization product of an aliphatic olefinic compound containing from 3 to 30 carbon atoms.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: June 4, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Stephen A. Di Biase, Curtis R. Scharf, James J. Schwind, Craig D. Tipton