Patents by Inventor Duane A. Inscho

Duane A. Inscho 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).

  • Aneroid replacement
    Patent number: 8328606
    Abstract: An altitude switch limit assembly has two independent limit switches to monitor cabin pressure and back up performance of the auto and monitor channels on the aircraft. The auto channel closes a first switch upon sensing that a cabin pressure falls below a set value, the monitor channel closes a second switch upon sensing that the cabin pressure falls below the set value. A first independent limit switch may be wired to the auto channel and a second independent limit switch may be wired to the monitor channel. Logic circuitry may determine that the assembly closes an outflow valve regulating cabin pressure when either both independent limit switches sense the condition, or when one of the independent limit switch senses the condition and either the auto channel or monitor channel to which that independent limit switch may be wired senses the same condition.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: December 11, 2012
    Assignee: Honeywell International Inc.
    Inventors: Ed Benkert, Rich Morey, Duane Inscho
  • ANEROID REPLACEMENT
    Publication number: 20100233950
    Abstract: An altitude switch limit assembly has two independent limit switches to monitor cabin pressure and back up performance of the auto and monitor channels on the aircraft. The auto channel closes a first switch upon sensing that a cabin pressure falls below a set value, the monitor channel closes a second switch upon sensing that the cabin pressure falls below the set value. A first independent limit switch may be wired to the auto channel and a second independent limit switch may be wired to the monitor channel. Logic circuitry may determine that the assembly closes an outflow valve regulating cabin pressure when either both independent limit switches sense the condition, or when one of the independent limit switch senses the condition and either the auto channel or monitor channel to which that independent limit switch may be wired senses the same condition.
    Type: Application
    Filed: March 10, 2009
    Publication date: September 16, 2010
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: ED BENKERT, Rich Morey, Duane Inscho
  • Control system and method for controlling aircraft cabin altitude during aircraft operations above maximum certified aircraft altitude
    Patent number: 7101277
    Abstract: A cabin pressure control system and method extends the cabin pressure control logic beyond the original maximum certified altitude of the aircraft, without having to update the control logic. Thus, the control system provides an independent means of limiting cabin-to-atmosphere differential pressure above the original maximum certified altitude if the aircraft exceeds, or is re-certified to exceed, its original maximum certified altitude.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: September 5, 2006
    Assignee: Honeywell International, Inc.
    Inventors: Darrell W. Horner, Duane A. Inscho
  • Control system and method for controlling aircraft cabin altitude during aircraft operations above maximum certified aircraft altitude
    Publication number: 20050048901
    Abstract: A cabin pressure control system and method extends the cabin pressure control logic beyond the original maximum certified altitude of the aircraft, without having to update the control logic. Thus, the control system provides an independent means of limiting cabin-to-atmosphere differential pressure above the original maximum certified altitude if the aircraft exceeds, or is re-certified to exceed, its original maximum certified altitude.
    Type: Application
    Filed: July 22, 2003
    Publication date: March 3, 2005
    Inventors: Darrell Horner, Duane Inscho