Patents by Inventor Roger Leroy Urven, Jr.

Roger Leroy Urven, Jr. 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).

  • Fluid injector having purge heater
    Patent number: 8484947
    Abstract: A fluid injector for an exhaust treatment system is disclosed. The fluid injector may have a body, a pin member, and a heater. The pin member may be disposed within the body and have a fluid receiving end and a fluid injecting end. The heater may be disposed about the fluid injecting end of the pin member.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: July 16, 2013
    Assignee: Caterpillar Inc.
    Inventors: Roger Leroy Urven, Jr., Stephan Donald Roozenboom, James Richard Weber, Glenn Brian Cox, Stephen Michael Wiley
  • Method of purging fluid injector by heating
    Patent number: 8006482
    Abstract: A fluid injector for use in an exhaust treatment system is disclosed. The fluid injector may have a nozzle portion, a heater associated with the nozzle portion, and a controller in communication with the heater. The controller may be configured to recognize a condition triggering a purge event of the fluid injector. The controller may also be configured to activate the heater to purge the fluid injector in response to the recognized condition.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: August 30, 2011
    Assignee: Caterpillar Inc.
    Inventors: Glenn Brian Cox, James Richard Weber, Orhan Altin, Roger Leroy Urven, Jr., Andrew John Kieser, Justin Werner McMenamy
  • Double bowl piston
    Patent number: 7185614
    Abstract: A piston for an internal combustion engine is disclosed. The piston has a piston crown with a face having an interior annular edge. The piston also has first piston bowl recessed within the face of the piston crown. The first piston bowl has a bottom surface and an outer wall. A line extending from the interior annular edge of the face and tangent with the outer wall forms an interior angle greater than 90 degrees with the face of the piston. The piston also has a second piston bowl that is centrally located and has an upper edge located below a face of the piston crown.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: March 6, 2007
    Assignee: Caterpillar Inc
    Inventors: Darrel Henry Meffert, Roger Leroy Urven, Jr., Cory Andrew Brown, Mark Harold Runge