Patents by Inventor David Lawrence Estey

David Lawrence Estey 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).

  • Power head configured to operate multiple tool heads with universal rotary device
    Patent number: 11845172
    Abstract: A multi-tool (100) includes a power head (120) including a power head housing (122) having a handle (124) operably coupled thereto, a tool attachment (106, 108, 110) configured to perform a work function, the tool attachment (106, 108, 110) being alternately separable from and operably coupled to the power head (120), a motor (140) disposed in the power head housing (122), a battery (130) configured to be operably coupled to the motor (140) to selectively power the motor (140), a drive provider portion (300) disposed at the power head (120), and a drive receiver portion (320) disposed at the tool attachment (106, 108, 110). The drive provider portion (300) includes a driving portion (302) of a shaft (150) operably coupled to the motor (140), and the drive receiver portion (320) includes a driven portion (322) of the shaft (150). The driving portion (302), the drive receiver portion (320), and the motor (140) share a common axis (148).
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: December 19, 2023
    Assignee: HUSQVARNA AB
    Inventors: Ni Zugen, Yang Ming, Li Li, Chad Jones, Garrett Sherman, Jeffrey C. Hickman, David Lawrence Estey
  • Blower with improved balance and construction
    Patent number: 11540455
    Abstract: A blower (100) includes a blower attachment housing (112), a power head housing (122) having a handle (130) operably coupled thereto, a motor (140) disposed in the power head housing (122), a fan (160) disposed in the blower attachment housing (112), a battery (150), and an intake chamber (174) disposed between the motor (140) and the fan (160) to enable the air to enter the blower (100) between the motor (140) and the fan (160).
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: January 3, 2023
    Assignee: HUSQVARNA AB
    Inventors: Ni Zugen, Ming Yang, Li Li, Chad Jones, Garrett Sherman, Jeffrey C. Hickman, David Lawrence Estey
  • MATING INTERFACE FOR A POWER HEAD CONFIGURED TO OPERATE MULTIPLE TOOL ATTACHMENTS
    Publication number: 20200384625
    Abstract: A multi-tool (100) includes a power head (120) including a power head housing (122) having a handle (124) operably coupled thereto, a tool attachment (106, 108, 110) configured to perform a work function, the tool attachment (106, 108, 110) being alternately separable from and operably coupled to the power head (120), a motor (140) disposed in the power head housing (122), a battery (130) configured to be operably coupled to the motor (140) to selectively power the motor (140), a power head mating interface (121) including structures disposed at the power head (120) for defining a physical mating assembly, a drive power transfer assembly and an electronic assembly, and a tool mating interface (123) including structures disposed at a housing of the tool attachment (106, 108, 110) for defining the physical mating assembly, the drive power transfer assembly and the electronic assembly.
    Type: Application
    Filed: December 6, 2017
    Publication date: December 10, 2020
    Inventors: Ni Zugen, Ming Yang, Li Li, Chad Jones, Garrett Sherman, Jeffrey C. Hickman, David Lawrence Estey
  • BLOWER WITH IMPROVED BALANCE AND CONSTRUCTION
    Publication number: 20200375124
    Abstract: A blower (100) includes a blower attachment housing (112), a power head housing (122) having a handle (130) operably coupled thereto, a motor (140) disposed in the power head housing (122), a fan (160) disposed in the blower attachment housing (112), a battery (150), and an intake chamber (174) disposed between the motor (140) and the fan (160) to enable the air to enter the blower (100) between the motor (140) and the fan (160).
    Type: Application
    Filed: December 6, 2017
    Publication date: December 3, 2020
    Inventors: Ming Yang, Chad Jones, Garrett Sherman, Jeffrey C. Hickman, David Lawrence Estey
  • POWER HEAD CONFIGURED TO OPERATE MULTIPLE TOOL HEADS WITH UNIVERSAL ROTARY DEVICE
    Publication number: 20200346335
    Abstract: A multi-tool (100) includes a power head (120) including a power head housing (122) having a handle (124) operably coupled thereto, a tool attachment (106, 108, 110) configured to perform a work function, the tool attachment (106, 108, 110) being alternately separable from and operably coupled to the power head (120), a motor (140) disposed in the power head housing (122), a battery (130) configured to be operably coupled to the motor (140) to selectively power the motor (140), a drive provider portion (300) disposed at the power head (120), and a drive receiver portion (320) disposed at the tool attachment (106, 108, 110). The drive provider portion (300) includes a driving portion (302) of a shaft (150) operably coupled to the motor (140), and the drive receiver portion (320) includes a driven portion (322) of the shaft (150). The driving portion (302), the drive receiver portion (320), and the motor (140) share a common axis (148).
    Type: Application
    Filed: December 6, 2017
    Publication date: November 5, 2020
    Inventors: Ming Yang, Chad Jones, Garrett Sherman, Jeffrey C. Hickman, David Lawrence Estey
  • Power head with tool attachment interface
    Patent number: D871184
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: December 31, 2019
    Assignee: HUSQVARNA AB
    Inventors: Jeffrey C. Hickman, David Lawrence Estey