Patents by Inventor J. Joshua Driscoll

J. Joshua Driscoll 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 and apparatus for regenerating NOx adsorbers
    Patent number: 7018442
    Abstract: Methods and apparatuses for regenerating a NOx adsorber coupled with an exhaust of an engine. An actuator drives a throttle valve to a first position when regeneration of the NOx adsorber is desired. The first position is a position that causes the regeneration of the NOx adsorber. An actuator drives the throttle valve to a second position while regeneration of the NOx adsorber is still desired. The second position being a position that is more open than the first position and operable to regenerate a NOx adsorber.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: March 28, 2006
    Assignee: Caterpillar Inc.
    Inventors: J. Joshua Driscoll, Dennis L. Endicott, Stephen A. Faulkner, Maarten Verkiel