Patents by Inventor William A. Welsh

William A. Welsh 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).

  • Patent number: 11303441
    Abstract: Provided are a computer program product, system, and method embodiments for reverting from a new security association to a previous security association in response to an error during a rekey operation. The responder maintains a first security association with the initiator having a first key to use to encrypt and decrypt messages transmitted with the initiator. The responder receives a message from the initiator for a rekey operation to establish a second security association with the initiator using a second key. The responder queues Input/Output (I/O) for transmission using the second key after completing the rekey operation. After activating the second security association, the responder receives a revert message from the initiator to revert back to using the first security association and first key in response to a failure of the rekey operation.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: April 12, 2022
    Assignee: International Business Machines Corporation
    Inventors: Roger G. Hathorn, Patricia G. Driever, Christopher J. Colonna, Mooheng Zee, Mikel William Welsh, Alol Antony Crasta, John R. Flanagan
  • Patent number: 11245521
    Abstract: Provided are a computer program product, system, and method embodiments for reverting from a new security association to a previous security association in response to an error during a rekey operation. An initiator maintains a first security association with the responder having a first key to use to encrypt and decrypt data transmitted with the responder. The initiator initiates a rekey operation to establish a second security association with the responder using a second key. The initiator detects a failure of the rekey operation after the responder started using the second key for transmissions. A revert message is sent to the responder to revert back to using the first security association and first key in response to detecting the failure of the rekey operation.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: February 8, 2022
    Assignee: International Business Machines Corporation
    Inventors: Roger G. Hathorn, Patricia G. Driever, Christopher J. Colonna, Mooheng Zee, John R. Flanagan, Alol Antony Crasta, Mikel William Welsh
  • Patent number: 11235868
    Abstract: A vibration control assembly for an aircraft including a housing operatively coupled to the aircraft. Also included is a cage disposed within an interior region of the housing, the cage rotatable within the housing about a first axis. Further included is a gyroscope wheel disposed within the cage and rotatable about a second axis other than the first axis, wherein a controllable moment is imposed on the aircraft upon rotation of the gyroscope wheel to counter vibratory moments produced by the vehicle.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: February 1, 2022
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: William A. Welsh, Yuriy Gmirya
  • Patent number: 11206144
    Abstract: Provided are a computer program product, system and method embodiments for secure communication between an initiator and a responder over a network. The responder receives, from the initiator, a security association initialization message to establish a security association with the responder including key material used to generate a key for the security association. The responder receives an authentication message from the initiator to program the responder to establish authentication between the responder and the initiator after establishing the security association. The responder sends an authentication message response to the initiator to establish authentication with the responder in response to the authentication message. The responder sends an authentication done message to the initiator after sending the authentication message response to cause the initiator to activate using the security association and the key to encrypt and decrypt communication between the responder and initiator.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: December 21, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Roger G. Hathorn, Patricia G. Driever, Christopher J. Colonna, Mooheng Zee, Mikel William Welsh, Richard Mark Sczepczenski, John R. Flanagan
  • Publication number: 20210389054
    Abstract: A rotor system including a rotor hub, a plurality of rotor blades supported by the rotor hub, and a fairing mounted to the rotor hub. The fairing includes an external surface exposed to an external airflow and an internal surface defining an interior portion. A component system is mounted to the rotor hub in the interior portion. The component system includes a first heat generating component and a second heat generating component spaced from the first heat generating component. A cooling duct is arranged between the first heat generating component and the second heat generating component.
    Type: Application
    Filed: June 16, 2020
    Publication date: December 16, 2021
    Inventors: William A. Welsh, Damaris R. Zachos
  • Patent number: 11201749
    Abstract: Provided are a computer program product, system and method embodiments for secure communication between an initiator and a responder over a network. The initiator sends a security association initialization message to the responder to establish a security association including key material used to generate a key for the security association. In response to receiving a security association initialization response to accept the security association, the initiator sends an authentication message to the responder to establish authentication between the responder and the initiator. In response to receiving an authentication message response to the authentication message, the initiator is programmed with the security association. An authentication done message is received from the responder after receiving the authentication message response.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: December 14, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Roger G. Hathorn, Patricia G. Driever, Christopher J. Colonna, Mooheng Zee, Richard Mark Sczepczenski, Mikel William Welsh, John R. Flanagan
  • Patent number: 11181324
    Abstract: A rotor system includes a rotor hub, a plurality of rotor blades supported by the rotor hub, and a fairing mounted to the rotor hub. The fairing includes an external surface exposed to an external airflow and an internal surface defining an interior portion. One or more heat generating components are arranged in the interior portion. A cooling system is arranged in the interior portion. The cooling system includes a first heat exchanger thermally connected to each of the one or more heat generating components, a second heat exchanger mounted to the fairing, and at least one fluid conduit extending therebetween so as to remove heat generated by each of the one or more heat generating components.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: November 23, 2021
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Charles R. Berezin, Christopher M. Sutton, William A. Welsh, Shyam Neerarambam
  • Publication number: 20210323658
    Abstract: A vibration control assembly includes a housing having an interior region and an inner mass including a cage disposed within the interior region of the housing and being rotatable within the housing about a first axis and a gyroscope wheel disposed within the cage and rotatable about a second axis other than the first axis. At least one driving source includes a stator and is operable to interact with a magnetic field of the inner mass to drive rotation of the inner mass about at least one of the first axis and the second axis, wherein the at least one driving source is mounted within the interior region of the housing.
    Type: Application
    Filed: April 20, 2020
    Publication date: October 21, 2021
    Inventors: William A. Welsh, Yuriy Gmirya, Damaris R. Zachos
  • Publication number: 20210316846
    Abstract: A vibration control assembly for an aircraft including a housing operatively coupled to the aircraft. Also included is a cage disposed within an interior region of the housing, the cage rotatable within the housing about a first axis. Further included is a gyroscope wheel disposed within the cage and rotatable about a second axis other than the first axis, wherein a controllable moment is imposed on the aircraft upon rotation of the gyroscope wheel to counter vibratory moments produced by the vehicle.
    Type: Application
    Filed: December 30, 2020
    Publication date: October 14, 2021
    Applicant: Sikorsky Aircraft Corporation
    Inventors: William A. WELSH, Yuriy GMIRYA
  • Patent number: 10994834
    Abstract: An active vibration control system for an aircraft includes a gearbox operably coupling a power source and a component rotatable about an axis. The gearbox includes a flexible region which allows flexure between a first stage and a second stage. At least one active vibration control actuator is arranged in vibrational communication with the flexible region to counteract vibrations transmitted between the power source and the rotatable component.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: May 4, 2021
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Stephen Johnston, Joseph Caterisano, William A. Welsh, Scott A. Chasen
  • Publication number: 20210091944
    Abstract: Provided are a computer program product, system, and method embodiments for reverting from a new security association to a previous security association in response to an error during a rekey operation. The responder maintains a first security association with the initiator having a first key to use to encrypt and decrypt messages transmitted with the initiator. The responder receives a message from the initiator for a rekey operation to establish a second security association with the initiator using a second key. The responder queues Input/Output (I/O) for transmission using the second key after completing the rekey operation. After activating the second security association, the responder receives a revert message from the initiator to revert back to using the first security association and first key in response to a failure of the rekey operation.
    Type: Application
    Filed: September 25, 2019
    Publication date: March 25, 2021
    Inventors: Roger G. Hathorn, Patricia G. Driever, Christopher J. Colonna, Mooheng Zee, Mikel William Welsh, Alol Antony Crasta, John R. Flanagan
  • Publication number: 20210091943
    Abstract: Provided are a computer program product, system, and method embodiments for reverting from a new security association to a previous security association in response to an error during a rekey operation. An initiator maintains a first security association with the responder having a first key to use to encrypt and decrypt data transmitted with the responder. The initiator initiates a rekey operation to establish a second security association with the responder using a second key. The initiator detects a failure of the rekey operation after the responder started using the second key for transmissions. A revert message is sent to the responder to revert back to using the first security association and first key in response to detecting the failure of the rekey operation.
    Type: Application
    Filed: September 25, 2019
    Publication date: March 25, 2021
    Inventors: Roger G. Hathorn, Patricia G. Driever, Christopher J. Colonna, Mooheng Zee, John R. Flanagan, Alol Antony Crasta, Mikel William Welsh
  • Publication number: 20210075621
    Abstract: Provided are a computer program product, system and method embodiments for secure communication between an initiator and a responder over a network. The initiator sends a security association initialization message to the responder to establish a security association including key material used to generate a key for the security association. In response to receiving a security association initialization response to accept the security association, the initiator sends an authentication message to the responder to establish authentication between the responder and the initiator. In response to receiving an authentication message response to the authentication message, the initiator is programmed with the security association. An authentication done message is received from the responder after receiving the authentication message response.
    Type: Application
    Filed: September 11, 2019
    Publication date: March 11, 2021
    Inventors: Roger G. Hathorn, Patricia G. Driever, Christopher J. Colonna, Mooheng Zee, Richard Mark Sczepczenski, Mikel William Welsh, John R. Flanagan
  • Publication number: 20210075627
    Abstract: Provided are a computer program product, system and method embodiments for secure communication between an initiator and a responder over a network. The responder receives, from the initiator, a security association initialization message to establish a security association with the responder including key material used to generate a key for the security association. The responder receives an authentication message from the initiator to program the responder to establish authentication between the responder and the initiator after establishing the security association. The responder sends an authentication message response to the initiator to establish authentication with the responder in response to the authentication message. The responder sends an authentication done message to the initiator after sending the authentication message response to cause the initiator to activate using the security association and the key to encrypt and decrypt communication between the responder and initiator.
    Type: Application
    Filed: September 11, 2019
    Publication date: March 11, 2021
    Inventors: Roger G. Hathorn, Patricia G. Driever, Christopher J. Colonna, Mooheng Zee, Mikel William Welsh, Richard Mark Sczepczenski, John R. Flanagan
  • Patent number: 10906636
    Abstract: A vibration control assembly for an aircraft including a housing operatively coupled to the aircraft. Also included is a cage disposed within an interior region of the housing, the cage rotatable within the housing about a first axis. Further included is a gyroscope wheel disposed within the cage and rotatable about a second axis other than the first axis, wherein a controllable moment is imposed on the aircraft upon rotation of the gyroscope wheel to counter vibratory moments produced by the vehicle.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: February 2, 2021
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: William A. Welsh, Yuriy Gmirya
  • Patent number: 10745116
    Abstract: An aircraft is provided and includes a rotor, which is rotatable relative to an airframe, a rotor, which is rotatable relative to the airframe and which generates a rotor induced vibration, an engine to generate rotational energy, a drive portion to transfer the rotational energy from the engine, a gearbox disposed to transmit the rotational energy from the drive portion to the rotor to drive rotor rotation, support members connecting the gearbox to the airframe and an actuation system configured to generate an anti-vibration load applicable to the gearbox via an actuator comprising an actuator element disposed along one of the support members and a stinger element extending from the actuator element to a connection point of the support member and the gearbox to transmit a portion of the anti-vibration load from the actuator element to the connection point to counter the rotor induced vibration at the gearbox.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: August 18, 2020
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: William A. Welsh, Bryan Kenneth Baskin, Chris Paul Butler
  • Publication number: 20200087002
    Abstract: A vibratory weight-on-wheels (WOW) sensing system is provided for use with aircraft landing gear and a wheel coupled to the aircraft landing gear. The WOW sensing system includes a vibration sensor disposed proximate to the wheel and configured to sense vibratory characteristics of a component of the aircraft landing gear and to issue a sensing reflective signal and a processing unit disposed in signal communication with the vibration sensor such that the processing unit is receptive of the sensing reflective signal. The processing unit is configured to analyze the sensing reflective signal to thereby identify that a landing condition is in effect.
    Type: Application
    Filed: June 22, 2016
    Publication date: March 19, 2020
    Inventors: Bradley M. Bauer, Jr., William A. Welsh
  • Publication number: 20200031459
    Abstract: A hub for a rotary wing aircraft includes a plurality of rotor blades, and a heat dissipation system including an aerodynamic faring arranged outwardly of the hub. The aerodynamic fairing has an outer surface and an inner surface defining a component receiving zone. An electronic component is mounted to the inner surface of the aerodynamic faring in the component receiving zone.
    Type: Application
    Filed: July 24, 2018
    Publication date: January 30, 2020
    Inventors: Christopher M. Sutton, Bryan D. Mayrides, William A. Welsh, Frank P. D'anna
  • Patent number: 10543912
    Abstract: A rotary wing aircraft includes a rotor system rotatable about an axis relative to an airframe. A plurality of blade assemblies is mounted to the rotor system. A higher harmonic control system is operable to generate a harmonic load at the rotor system according to a higher harmonic control signal. An active vibration control system is operable to generate vibration forces about the aircraft according to an active vibration control signal. A controller is operable to issue the higher harmonic control signal and the active vibration control signal to coordinate the higher harmonic control system and the active vibration control system to reduce vibration within the airframe.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: January 28, 2020
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: William A. Welsh, Vineet Sahasrabudhe
  • Patent number: 10538314
    Abstract: An aircraft is provided and includes an airframe, an engine, a drive portion driven by the engine, a rotor apparatus, which includes a rotor rotatable relative to the airframe and a fairing, a gearbox disposed to transmit rotational energy from the drive portion to the rotor to drive the rotor to rotate relative to the airframe and which generates a rotor rotation vibration, support members by which the gearbox is disposed on the airframe and an actuation system including actuation elements disposed at the fairing, the actuation system being configured to generate an anti-vibration moment using the actuation elements disposed at the fairing to counter the rotor rotation vibration.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: January 21, 2020
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: David H. Hunter, William A. Welsh, Bryan Kenneth Baskin, Chris Paul Butler