Patents by Inventor Grant Beall

Grant Beall 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).

  • Electric motor stack with integral one-piece gearbox input shaft
    Patent number: 11831220
    Abstract: A motor assembly is described and includes a housing having a forward endplate and a rear endplate; a plurality of motors disposed within the housing; and a drive shaft driven by the plurality of motors and having a first end extending through the forward endplate of the housing and a second end extending through the rear endplate of the housing, wherein the first end of the drive shaft is configured to engage with a gearbox.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: November 28, 2023
    Assignee: TEXTRON INNOVATIONS INC.
    Inventor: Grant Beall
  • Electric drive system for rotorcraft
    Patent number: 11781544
    Abstract: A rotor system comprising a driveshaft; at least one motor for providing rotational energy for the driveshaft; an overrunning clutch connected to the motor and disposed around the driveshaft, wherein the overrunning clutch is rotated by the at least one motor; and a pump assembly associated with the at least one motor, the pump assembly comprising a large bore through which the driveshaft passes such that the pump assembly is arranged concentric to the driveshaft, the pump assembly further comprising a gerotor pump comprising inner and outer gerotor pump gears, wherein an inner bore of the gerotor pump engages and is driven by the overrunning clutch; and a cover disposed over the gerotor pump for providing a sump for the gerotor pump.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: October 10, 2023
    Assignee: TEXTRON INNOVATIONS INC.
    Inventors: Grant Beall, Stephen Yibum Chung
  • AIRCRAFT ROTOR ASSEMBLY WITH SEGMENTED INPUT SHAFT FOR ELECTRIC MOTOR STACK AND GEARBOX UNIT
    Publication number: 20220274715
    Abstract: A motor assembly is described and includes a housing; a plurality of motors disposed within the housing; and a drive shaft comprising a plurality of interconnected drive shaft segments, wherein each one of the drive shaft segments is driven by a different one of the motors connected to the drive shaft segment via an integrated overrunning clutch.
    Type: Application
    Filed: May 19, 2022
    Publication date: September 1, 2022
    Applicant: Textron Innovations Inc.
    Inventors: Grant Beall, Cody C. Anderson
  • Aircraft rotor assembly with segmented input shaft for electric motor stack and gearbox unit
    Patent number: 11390395
    Abstract: A motor assembly is described and includes a housing; a plurality of motors disposed within the housing; and a drive shaft comprising a plurality of interconnected drive shaft segments, wherein each one of the drive shaft segments is driven by a different one of the motors connected to the drive shaft segment via an integrated overrunning clutch.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: July 19, 2022
    Assignee: Textron Innovations Inc.
    Inventors: Grant Beall, Cody C. Anderson
  • ELECTRIC DRIVE SYSTEM FOR ROTORCRAFT
    Publication number: 20220120261
    Abstract: A rotor system comprising a driveshaft; at least one motor for providing rotational energy for the driveshaft; an overrunning clutch connected to the motor and disposed around the driveshaft, wherein the overrunning clutch is rotated by the at least one motor; and a pump assembly associated with the at least one motor, the pump assembly comprising a large bore through which the driveshaft passes such that the pump assembly is arranged concentric to the driveshaft, the pump assembly further comprising a gerotor pump comprising inner and outer gerotor pump gears, wherein an inner bore of the gerotor pump engages and is driven by the overrunning clutch; and a cover disposed over the gerotor pump for providing a sump for the gerotor pump.
    Type: Application
    Filed: October 20, 2020
    Publication date: April 21, 2022
    Applicant: Bell Textron Inc.
    Inventors: Grant Beall, Stephen Yibum Chung
  • SEGMENTED INPUT SHAFT FOR ELECTRIC MOTOR STACK AND GEARBOX UNIT
    Publication number: 20210403174
    Abstract: A motor assembly is described and includes a housing; a plurality of motors disposed within the housing; and a drive shaft comprising a plurality of interconnected drive shaft segments, wherein each one of the drive shaft segments is driven by a different one of the motors connected to the drive shaft segment via an integrated overrunning clutch.
    Type: Application
    Filed: June 25, 2020
    Publication date: December 30, 2021
    Inventors: Grant Beall, Cody C. Anderson
  • ELECTRIC MOTOR STACK WITH INTEGRAL ONE-PIECE GEARBOX INPUT SHAFT
    Publication number: 20210399607
    Abstract: A motor assembly is described and includes a housing having a forward endplate and a rear endplate; a plurality of motors disposed within the housing; and a drive shaft driven by the plurality of motors and having a first end extending through the forward endplate of the housing and a second end extending through the rear endplate of the housing, wherein the first end of the drive shaft is configured to engage with a gearbox.
    Type: Application
    Filed: June 22, 2020
    Publication date: December 23, 2021
    Inventor: Grant Beall