Patents by Inventor John Kirwan

John Kirwan 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).

  • Publication number: 20030000145
    Abstract: A method for starting a fast light-off catalytic reformer for producing hydrogen-rich reformate fuel from hydrocarbon fuel and air, the reformer having means for receiving flows of fuel and air, a reforming catalyst for reforming the fuel and air mixture, and an ignition device. A control system selects fuel and air flow rates to form a lean fuel/air mixture and operates the ignition device to ignite the lean mixture to produce hot exhaust gases that flow over and heat the reforming catalyst for a first length of time. Fuel flow is then stopped temporarily for a second length of time, and further ignition is terminated. Fuel flow is then restarted and adjusted to provide a rich fuel/air mixture which is directed to the heated catalyst for reforming into reformate fuel. Air flow may also be adjusted in setting the lean and/or rich fuel/air mixtures.
    Type: Application
    Filed: August 28, 2002
    Publication date: January 2, 2003
    Inventors: Michael R. Salemi, Jonathon R. Bennett, Richard Nashburn, John Kirwan, Ather A. Quader, James M. Haller
  • Patent number: 5263967
    Abstract: A medical instrument including a tubular extension within which and to which two movable end effectors, such as jaw members, are rotatably attached by a pivot. The proximal end of each end effector is pivotally attached to and butts against a drive surface of its respective arm of a dual action drive member also located within the tubular extension. As the dual action drive member is moved proximally or distally within the tubular extension, the distal ends of the end effectors rotate or counter rotate about the pivot in opposition to one another. The dual action drive member paired arms have end surfaces which transfer, to the end effectors, the force required to rotate the end effectors toward one another, thereby reducing the shear force applied to pivot posts on the arms used to open the jaws. The dual action drive member may be used with a variety of different end effector devices including but not limited to medical grippers, hole punches, dissectors, extractors, scissors, and clamps.
    Type: Grant
    Filed: May 15, 1992
    Date of Patent: November 23, 1993
    Assignee: Brimfield Precision Incorporated
    Inventors: William G. Lyons, III, John Kirwan