Patents by Inventor Victor L. Berry

Victor L. Berry 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 for suppressing vibration and acoustic signature in a tiltrotor aircraft
    Patent number: 8201772
    Abstract: A method is disclosed for suppressing an external acoustic signature of an aircraft having at least one pair of non-intermeshing multiple-blade rotors. During operation of the aircraft, the at least one pair of rotors are rotated in an asymmetrically indexed manner that causes the blades of one of each pair of rotors to be consistently out of phase from the blades of the other of each pair of rotors. The selected amount in degrees of asymmetrical indexing is equal to the desired phasing in degrees divided by a number of blades of one of the rotors.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: June 19, 2012
    Assignee: Textron Innovations Inc.
    Inventors: Joseph W. Wendelsdorf, Victor L. Berry
  • Method for Suppressing Vibration and Acoustic Signature in a Tiltrotor Aircraft
    Publication number: 20100059632
    Abstract: A method is disclosed for suppressing an external acoustic signature of an aircraft having at least one pair of non-intermeshing multiple-blade rotors. During operation of the aircraft, the at least one pair of rotors are rotated in an asymmetrically indexed manner that causes the blades of one of each pair of rotors to be consistently out of phase from the blades of the other of each pair of rotors. The selected amount in degrees of asymmetrical indexing is equal to the desired phasing in degrees divided by a number of blades of one of the rotors.
    Type: Application
    Filed: April 11, 2008
    Publication date: March 11, 2010
    Inventors: Joseph W. Wendelsdorf, Victor L. Berry
  • Crashworthy composite aircraft structure with integral fuel tank
    Patent number: 5451015
    Abstract: A dual-purpose bulkhead structure functions to support normal aircraft operational loads and to absorb energy in a controlled manner during a crash. An integral fuel tank comprises a fuel compartment and a crashworthy flexible fuel cell. The fuel compartment includes two dual-purpose bulkheads and crushable foam disposed between the sides of the fuel cell and the bulkheads and sides of the fuel compartment. The foam limits fuel pressure loads on fuel compartment bulkheads and sides during a crash, thereby preventing their failure.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: September 19, 1995
    Assignee: Bell Helicopter Textron Inc.
    Inventors: James D. Cronkhite, Victor L. Berry, Michael R. Smith
  • Mode controlled attachment of rotor mounted components
    Patent number: 4275992
    Abstract: An above-rotor mount (30) for a helicopter (10) comprises an upper plate (32) coupled to a lower plate (34) by means of links (42, 44, 46 and 48). The lower plate (34) is connected to a rotating rotor shaft (16) and a non-rotating stand pipe (40) extending inside the rotor shaft. The links (42, 44, 46 and 48) are focused to control the mode shapes and dynamic response of the mounted components at a preselected frequency, such as the predominant rotor harmonic. Springs (50, 52) are connected between the plates (32, 34) for damping.
    Type: Grant
    Filed: April 9, 1979
    Date of Patent: June 30, 1981
    Assignee: Textron, Inc.
    Inventors: James R. Andrews, Rodney W. Balke, Victor L. Berry