Patents by Inventor David Drennen

David Drennen 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: 10259433
    Abstract: An electromechanical actuator is provided comprising a housing, a rotor disposed in the housing, an selective gearbox mechanically coupled to the rotor and disposed in the housing, a first output of the selective gearbox configured to rotate at a different speed than the rotor, and a second output of the selective gearbox configured to rotate at a same speed as the rotor.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: April 16, 2019
    Assignee: GOODRICH CORPORATION
    Inventors: Kevin Rehfus, David Drennen, Robert French
  • Patent number: 10119870
    Abstract: The present disclosure provides an electromechanical actuator comprising an actuator drive unit housing, a relief formed in the actuator drive unit housing, a column defined by the relief positioned adjacent to a second relief, and a load cell comprising the column and a strain gauge coupled to the column.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: November 6, 2018
    Assignee: Goodrich Corporation
    Inventors: Kevin Rehfus, David Drennen, Thomas Freshour, Harald Klode, Satinder Mann, Robert French
  • Patent number: 10020713
    Abstract: An integrated actuator drive unit (ADU) assembly for an electric motor actuator is disclosed. The integrated ADU assembly may comprise at least one of an integrally formed ring gear, an integrally formed thrust bearing and integrally formed load cell. The integrated ADU assembly may comprise a portion of an electromechanical actuator. The electromechanical actuator may be utilized for aircraft braking systems.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: July 10, 2018
    Assignee: GOODRICH CORPORATION
    Inventors: David Drennen, Harald Klode, Kevin Rehfus
  • Patent number: 9995351
    Abstract: A park brake system for an electric motor actuator is provided. The system may comprise a wrap spring that may rotatably engage the shaft. In this regard, the system may be configured to exert a radial force on a shaft of the electric motor actuator to lock the actuator. Moreover, in various embodiments, the system may be bi-stable.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: June 12, 2018
    Assignee: GOODRICH CORPORATION
    Inventors: David Drennen, Harald Klode, Kevin Rehfus
  • Patent number: 9929627
    Abstract: A brushless DC motor is provided. The brushless DC motor comprises a motor housing around an axis, a stator assembly inside the motor housing, a carrier plate fixed relative to the stator assembly, and a Hall effect sensor assembly removably coupled to the carrier plate. A method of making a brushless DC motor is also provided comprising fixing a carrier plate relative to a stator assembly of a brushless DC motor assembly, and fixing a first Hall effect sensor array to the carrier plate.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: March 27, 2018
    Assignee: Goodrich Corporation
    Inventors: Harald Klode, David Drennen, Kevin Rehfus, Albert Keith Pant, Robert French
  • Patent number: 9926073
    Abstract: An electro-mechanical actuator in an aircraft brake may include a ball nut piston, and endcap coupled to the ball nut piston, a retaining ring coupled to the endcap, and a puck secured within the endcap. The puck may be permanently retained within the retaining ring. The retaining ring may be a split ring which is installed around a base of the puck. The puck may be inserted within a single-piece retaining ring, and the retaining ring may be bent over a base of the puck.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: March 27, 2018
    Assignee: GOODRICH CORPORATION
    Inventors: David Drennen, Kevin Rehfus
  • Publication number: 20180045593
    Abstract: The present disclosure includes the use of a smart load cell in a system for controlling an electromechanical actuator. A load cell may be positioned along the outer surface of the electromechanical actuator. Further, the load cell may utilize strain gages and a microcontroller. The load cell may be configured to transmit data to an electric brake actuator controller which includes calibration for operating temperature of the electromechanical actuator.
    Type: Application
    Filed: October 25, 2017
    Publication date: February 15, 2018
    Applicant: GOODRICH CORPORATION
    Inventors: Joseph E. Beason, Kevin Rehfus, Albert Keith Pant, Thomas Freshour, Scott Streng, David Drennen
  • Publication number: 20180031094
    Abstract: A mechanical linear actuator in an aircraft brake may include a ball nut, a ball screw, and an actuator drive unit housing. The ball screw may rotate to drive the ball nut axially. The ball screw and the actuator drive unit housing may form a series of annular raceways. The ball screw may have a first window corresponding to a first raceway and a second window corresponding to a second raceway. Balls may be inserted into the first raceway through the first window and into the second raceway through the second window.
    Type: Application
    Filed: September 19, 2017
    Publication date: February 1, 2018
    Applicant: GOODRICH CORPORATION
    Inventors: David Drennen, Kevin Rehfus, Satinder Mann, Robert French, Harald Klode
  • Patent number: 9829402
    Abstract: The present disclosure includes the use of a smart load cell in a system for controlling an electromechanical actuator. A load cell may be positioned along the outer surface of the electromechanical actuator. Further, the load cell may utilize strain gages and a microcontroller. The load cell may be configured to transmit data to an electric brake actuator controller which includes calibration for operating temperature of the electromechanical actuator.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: November 28, 2017
    Assignee: GOODRICH CORPORATION
    Inventors: Joseph E. Beason, Kevin Rehfus, Albert Keith Pant, Thomas Freshour, Scott Streng, David Drennen
  • Publication number: 20170333975
    Abstract: An electromechanical actuator housing assembly comprising a reinforcement ring is disclosed herein. The design of the electromechanical actuator housing assembly may be directed to improving load measurement accuracy. The design of the electromechanical actuator housing assembly may be directed to reducing housing deflections. A method of manufacture of an EMA housing assembly is also disclosed herein. This method may include an electromechanical actuator housing assembly having a reinforcement ring.
    Type: Application
    Filed: August 10, 2017
    Publication date: November 23, 2017
    Applicant: GOODRICH CORPORATION
    Inventors: JANTZEN HINTON, KEVIN REHFUS, DAVID DRENNEN
  • Patent number: 9815551
    Abstract: Systems and methods are disclosed for aircraft braking and taxiing systems for use in, for example, an aircraft. In this regard, a system may comprise an electric motor and a clutch. The electric motor may include a first output shaft and a second output shaft. The clutch may selectively engaging the motor to at least one of a driver transmission and a brake transmission, wherein, in response to engagement with the driver transmission, the electric motor drives, exclusively, an aircraft wheel via the first output shaft, wherein, in response to engagement with the brake transmission, the electric motor drives, exclusively, a brake clamping system via the second output shaft to apply force to an aircraft brake disk stack.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: November 14, 2017
    Assignee: GOODRICH CORPORATION
    Inventors: David Drennen, Kevin Rehfus
  • Patent number: 9791025
    Abstract: A mechanical linear actuator in an aircraft brake may include a ball nut, a ball screw, and an actuator drive unit housing. The ball screw may rotate to drive the ball nut axially. The ball screw and the actuator drive unit housing may form a series of annular raceways. The ball screw may have a first window corresponding to a first raceway and a second window corresponding to a second raceway. Balls may be inserted into the first raceway through the first window and into the second raceway through the second window.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: October 17, 2017
    Assignee: GOODRICH CORPORATIOLN
    Inventors: David Drennen, Kevin Rehfus, Satinder Mann, Robert French, Harald Klode
  • Patent number: 9757793
    Abstract: An electromechanical actuator housing assembly comprising a reinforcement ring is disclosed herein. The design of the electromechanical actuator housing assembly may be directed to improving load measurement accuracy. The design of the electromechanical actuator housing assembly may be directed to reducing housing deflections. A method of manufacture of an EMA housing assembly is also disclosed herein. This method may include an electromechanical actuator housing assembly having a reinforcement ring.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: September 12, 2017
    Assignee: GOODRICH CORPORATION
    Inventors: Jantzen Hinton, Kevin Rehfus, David Drennen
  • Publication number: 20170241848
    Abstract: The present disclosure provides an electromechanical actuator comprising an actuator drive unit housing, a relief formed in the actuator drive unit housing, a column defined by the relief positioned adjacent to a second relief, and a load cell comprising the column and a strain gauge coupled to the column.
    Type: Application
    Filed: February 19, 2016
    Publication date: August 24, 2017
    Applicant: Goodrich Corporation
    Inventors: Kevin Rehfus, David Drennen, Thomas Freshour, Harald Klode, Satinder Mann, Robert French
  • Publication number: 20170241526
    Abstract: The present disclosure provides an actuator assembly having a ball nut comprising a helical track and a ball screw. The ball screw of the actuator assembly includes a first translation bearing track having a first diameter, wherein the helical track and the first translation bearing track form a first translation bearing raceway in which a first translation bearing ball is disposed. The ball screw further includes a second translation bearing track having a second diameter, wherein the helical track and the second translation bearing track form a second translation bearing raceway in which a second translation bearing ball is disposed. The first diameter and the second diameter are not equal.
    Type: Application
    Filed: February 19, 2016
    Publication date: August 24, 2017
    Applicant: Goodrich Corporation
    Inventors: David Drennen, Harald Klode, Kevin Rehfus, Satinder Mann, Marc Georgin, Robert French
  • Publication number: 20170187265
    Abstract: An integrated actuator drive unit (ADU) assembly for an electric motor actuator is disclosed. The integrated ADU assembly may comprise at least one of an integrally formed ring gear, an integrally formed thrust bearing and integrally formed load cell. The integrated ADU assembly may comprise a portion of an electromechanical actuator. The electromechanical actuator may be utilized for aircraft braking systems.
    Type: Application
    Filed: March 13, 2017
    Publication date: June 29, 2017
    Applicant: Goodrich Corporation
    Inventors: David Drennen, Harald Klode, Kevin Rehfus
  • Patent number: 9641044
    Abstract: An integrated actuator drive unit (ADU) assembly for an electric motor actuator is disclosed. The integrated ADU assembly may comprise at least one of an integrally formed ring gear, an integrally formed thrust bearing and integrally formed load cell. The integrated ADU assembly may comprise a portion of an electromechanical actuator. The electromechanical actuator may be utilized for aircraft braking systems.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: May 2, 2017
    Assignee: Goodrich Corporation
    Inventors: David Drennen, Harald Klode, Kevin Rehfus
  • Patent number: 9605723
    Abstract: The present disclosure provides an actuator assembly comprising a ballnut having a helical track, an actuator drive unit (“ADU”) housing having an ADU track, and a ballscrew. In various embodiments, the ballscrew comprises a first translation bearing track, wherein the helical track and the first translation bearing track form a first translation bearing raceway in which a plurality of first translation bearing balls having a first diameter are disposed, and a second translation bearing track, wherein the helical track and the second translation bearing track form a second translation bearing raceway in which a plurality of second translation bearing balls having a second diameter are disposed, wherein the first diameter and the second diameter are not equal.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: March 28, 2017
    Assignee: GOODRICH CORPORATION
    Inventors: Kevin Rehfus, David Drennen, Harald Klode
  • Publication number: 20170080906
    Abstract: An electromechanical actuator is provided comprising a housing, a rotor disposed in the housing, an selective gearbox mechanically coupled to the rotor and disposed in the housing, a first output of the selective gearbox configured to rotate at a different speed than the rotor, and a second output of the selective gearbox configured to rotate at a same speed as the rotor.
    Type: Application
    Filed: December 6, 2016
    Publication date: March 23, 2017
    Applicant: GOODRICH CORPORATION
    Inventors: Kevin Rehfus, David Drennen, Robert French
  • Patent number: 9586678
    Abstract: The present disclosure provides devices and methods related to park brake systems and methods. In various embodiments, a park brake system may comprise a motor shaft having a first diameter portion and a second diameter portion, the second diameter portion having a greater diameter than the first diameter portion. A park brake system may further comprise a spring disposed at least partially around a circumference of the motor shaft, a wire coil disposed at least partially around a circumference of a bobbin, a one-way clutch disposed at least partially within the bobbin and coaxial to the motor shaft, an annular magnet disposed coaxial to the motor shaft and distal to at least a portion of the bobbin, and a clutch release mechanism disposed coaxial to the motor shaft and around the first diameter portion.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: March 7, 2017
    Assignee: United Technologies Corporation
    Inventors: David Drennen, Kevin Rehfus, Robert French, Harald Klode