Patents by Inventor Anthony Joseph Rollin

Anthony Joseph Rollin 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).

  • Additive composition
    Patent number: 8299002
    Abstract: An additive composition including at least one dispersant viscosity index improver and at least two seal swell additives is disclosed.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: October 30, 2012
    Assignee: Afton Chemical Corporation
    Inventors: Michael B. Glasgow, Samuel H. Tersigni, Anthony Joseph Rollin
  • Limited slip differential performance simulation procedure
    Patent number: 7316156
    Abstract: A method of simulating a split ? axle test for limited slip differentials for automotive applications. The method includes treating a clutch pack for a limited slip differential in a lubricant composition for a first period of time at a predetermined temperature. The clutch pack is mounted in a friction testing rig. A predetermined amount of test fluid is provided to the testing rig. A drive for the testing rig is cycled on and off for a predetermined number of on and off cycles. When the drive is on, a predetermined relative rotational speed between friction plates and metal plates in the clutch pack is generated.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: January 8, 2008
    Assignee: Afton Chemical Corporation
    Inventors: Anthony Joseph Rollin, David Joseph Harer, Dale Michael Brown