Patents by Inventor Kevin David Butler

Kevin David Butler 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).

  • Long-life lubricating oil with wear prevention capability
    Patent number: 6534452
    Abstract: An industrial lubricant having wear prevention properties without sacrificing oxidation resistance comprises a major portion of a base oil; an effective amount of a sulfur and phosphorus antiwear compound and an effective amount of an anti-oxidant or mixture of antioxidants.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: March 18, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Kevin David Butler
  • Industrial oils of enhanced resistance to oxidation
    Patent number: 6207623
    Abstract: A lubricating oil formulation containing a major amount of a base oil of lubricating viscosity and a minor amount of additives comprising a combination of phenyl naphthyl amine, dimercaptothiadiazole or derivative thereof, and triazole or benzotriazole or derivative thereof, exhibiting enhanced resistance to oxidation.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: March 27, 2001
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Kevin David Butler, Alison Fiona Miller, Todd Timothy Nadasdi
  • Non-sludging, high temperature resistant food compatible lubricant for food processing machinery
    Patent number: 6090761
    Abstract: A lubricating oil suitable for machinery which may come into incidental contact with food is described, which contains a food grade base oil and a combination of food grade additives including a thickener, an antioxidant, a rust inhibitor, an anti-wear additive, an antifoamant, optionally a metal passivator, and a combination of up to 2.5 wt % emulsifier and coupling agent. The lubricating oil exhibits good resistance to wear, oxidation and rust, and reduced sludging at equipment surface temperatures of about 200.degree. F. and higher.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: July 18, 2000
    Assignee: Exxon Research and Engineering Company
    Inventors: Kevin David Butler, Robert D. Dewalt, Christopher Jeffrey Still Kent
  • Non-sludging, high temperature resistant food compatible lubricant for food processing machinery
    Patent number: 6087308
    Abstract: A lubricating oil suitable for machinery which may come into incidental contact with food is described, which contains a food grade base oil and a combination of food grade additives including a thickener, an antioxidant, a rust inhibitor, an anti-wear additive, an antifoamant, optionally a metal passivator, and 0.2 wt % or less coupling agent. The lubricating oil exhibits good resistance to wear, oxidation and rust, and reduced sludging at equipment surface temperatures of about 200.degree. F. and higher.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: July 11, 2000
    Assignee: Exxon Research and Engineering Company
    Inventors: Kevin David Butler, Christopher Jeffrey Still Kent