Patents by Inventor Allan K. Lazarus

Allan K. Lazarus 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).

  • Lubricants for reciprocating compressors for oxygen-free gases
    Patent number: 4111821
    Abstract: Lubricant compositions for use in the cylinder and drive train lubrication of reciprocating compressors for oxygen-free gases comprise 97% to 99% by weight of a base fluid that is a phthalate ester of an aliphatic alcohol having 10 to 15 carbon atoms and 1% to 3% by weight of an additive system that contains a viscosity index modifying component, an antioxidant component, and optionally a corrosion inhibitor and/or a load bearing additive.
    Type: Grant
    Filed: July 8, 1975
    Date of Patent: September 5, 1978
    Assignee: Tenneco Chemicals, Inc.
    Inventors: Allan K. Lazarus, Malcolm H. Knapp