Patents by Inventor RHETT W. JONES

RHETT W. JONES 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).

  • Method of preparing greases
    Patent number: 9347012
    Abstract: Provided is a method for preparing a grease composition, which comprises mixing an amine in a lubricating bas oil and an isocyanate in a lubricating base oil under high pressure and high flow rate impingement. In one embodiment, the mixing and reaction occurs in a reaction injection molding device. The resulting grease composition is an extremely low noise grease, being virtually clear of any urea thickener particles.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: May 24, 2016
    Assignee: Chevron U.S.A. Inc.
    Inventors: David S. Lee, Rhett W. Jones, Merdona C. Bautista
  • Method of preparing greases
    Patent number: 9012384
    Abstract: Provided is a method for preparing a grease composition, which comprises mixing an amine in a lubricating bas oil and an isocyanate in a lubricating base oil under high pressure and high flow rate impingement. In one embodiment, the mixing and reaction occurs in a reaction injection molding device. The resulting grease composition is an extremely low noise grease, being virtually clear of any urea thickener particles.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: April 21, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: David S. Lee, Rhett W. Jones
  • Method of Preparing Greases
    Publication number: 20120028860
    Abstract: Provided is a method for preparing a grease composition, which comprises mixing grease components under high pressure and high flow rate impingement. In one embodiment, a first mixture of an amine in a lubricating base oil is mixed with an isocyanate in a lubricating base oil under high pressure and high flow impingement. In another embodiment, the mixing and reaction occurs in a reaction injection molding device. The orifice size through which each of the mixtures is introduced into a reaction/mixing zone is less than 0.030 inch (0.0762 centimeter) in diameter. The resulting grease composition is an extremely low noise grease, being virtually clear of any urea thickener particles, and/or can exhibit good high temperature resistance and mechanical stability.
    Type: Application
    Filed: March 28, 2011
    Publication date: February 2, 2012
    Applicant: CHEVRON U.S.A. INC.
    Inventors: David S. Lee, Rhett W. Jones
  • METHOD OF PREPARING GREASES
    Publication number: 20120028859
    Abstract: Provided is a method for preparing a grease composition, which comprises mixing an amine in a lubricating bas oil and an isocyanate in a lubricating base oil under high pressure and high flow rate impingement. In one embodiment, the mixing and reaction occurs in a reaction injection molding device. The resulting grease composition is an extremely low noise grease, being virtually clear of any urea thickener particles.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 2, 2012
    Applicant: CHEVRON U.S.A. INC.
    Inventors: DAVID S. LEE, RHETT W. JONES