Patents by Inventor Steven A. Hunt

Steven A. Hunt 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).

  • System and method for stabilizing transcritical air-to-fuel heat exchange
    Patent number: 10890114
    Abstract: A gas turbine engine includes devices, systems, and methods for design and operation of stabilizing heat exchangers for gas turbine engines in consideration of near supercritical fuel flow conditions.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: January 12, 2021
    Assignees: Rolls-Royce Corporation, Purdue Research Foundation
    Inventors: Patrick C. Sweeney, Stephen D. Heister, Steven A. Hunt, Carlo Scalo, Mario Tindaro Migliorino
  • SYSTEM AND METHOD FOR STABILIZING TRANSCRITICAL AIR-TO-FUEL HEAT EXCHANGE
    Publication number: 20170321607
    Abstract: A gas turbine engine includes devices, systems, and methods for design and operation of stabilizing heat exchangers for gas turbine engines in consideration of near supercritical fuel flow conditions.
    Type: Application
    Filed: March 30, 2017
    Publication date: November 9, 2017
    Inventors: Patrick C. Sweeney, Stephen D. Heister, Steven A. Hunt, Carlo Scalo, Mario Tindaro Migliorino
  • Document stacker apparatus and method of stacking documents
    Patent number: 7451977
    Abstract: A plunger moves from a retracted position to an extended position to engage a document which is on a receiving platform to push the document through an opening in the receiving platform and towards a stacking platform to stack the document on the stacking platform. The plunger moves from the extended position back to the retracted position to allow a biasing force which is acting on the stacking platform to press the document which has just been stacked on the stacking platform against the receiving platform.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: November 18, 2008
    Assignee: NCR Corporation
    Inventors: Tammer A. Gabel, Fredrik L. N. Kallin, Frank B. Dunn, David W. Norris, Anthony R. Dunn, William J. Cramer, Steven A. Hunt, Gary S. Howard
  • Document stacker apparatus and method of stacking documents
    Patent number: 7229071
    Abstract: A plunger moves from a retracted position to an extended position to engage a document which is on a receiving platform to push the document through an opening in the receiving platform and towards a stacking platform to stack the document on the stacking platform. The plunger moves from the extended position back to the retracted position to allow a biasing force which is acting on the stacking platform to press the document which has just been stacked on the stacking platform against the receiving platform.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: June 12, 2007
    Assignee: NCR Corporation
    Inventors: Tammer A. Gabel, Fredrik L. N. Kallin, Frank B. Dunn, David W. Norris, Anthony R. Dunn, William J. Cramer, Steven A. Hunt, Gary S. Howard
  • Apparatus for detecting the condition of a sheet or web
    Patent number: 4519249
    Abstract: For the detection of defects such as tears or fold lines in banknotes, for example, continuous wave ultrasonic energy is directed by a transmitter to a flow path for the notes and ultrasonic energy reflected from the notes or transmitted through tears or holes in the notes is converted by a receiver into an electric signal. A signal analyzing circuit is responsive to changes in the output of the receiver during the passage of the banknote. In the ultrasonic inspection area, the note may be passed over rollers with flared ends to cause a tear to open and allow the passage of ultrasonic energy. In a reflective system the note may be passed over a roller to cause one or both of the adjacent edges of a tear to leave the roller surface. The electric signal is analyzed for components indicative of a defect; for tear detection, a spike filter and a circuit for distinguishing tear signals from end-of-note signals may be used.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: May 28, 1985
    Assignee: De la Rue Systems Limited
    Inventor: Steven A. Hunt