Patents by Inventor Huajun Tao

Huajun Tao 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: 11806848
    Abstract: A pneumatically driven tool (e.g., an impact tool) includes a pneumatically driven motor; an electric generator generating electrical power from movement of the pneumatically driven motor, or an impact mechanism connected thereto; and an on-board light that is powered by the generated electrical power. The pneumatically driven motor is rotated by compressed air or gas and drives an impact mechanism with one or more hammers and an anvil. Impact of the hammer(s) with the anvil, in turn, move an output shaft of the pneumatically driven tool. The electric generator harnesses the rotational movement of the pneumatically driven motor and/or the impact mechanism to electrically power the on-board light.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: November 7, 2023
    Assignee: Ingersoll-Rand Industrial, Inc.
    Inventors: Warren A. Seith, Huajun Tao, Yunzhong Yu, Jinzhong Yang
  • Publication number: 20220193881
    Abstract: A pneumatic tool includes, but is not limited to, an air motor cylinder defining an interior configured to receive an air motor and further defining an inlet configured to receive pressurized air to supply to the air motor; a tool handle defining a source fluid passageway fluidically coupled between the inlet and an air inlet configured to receive pressurized air, the source fluid passageway configured to direct a first portion of pressurized air received by the inlet to the inlet of the air motor cylinder; an air pressure indicator coupled to the air motor cylinder and configured to provide an indication of a dynamic air pressure of the pneumatic tool; and an indicator fluid passageway fluidically coupled between the air pressure indicator and the source fluid passageway, the indicator fluid passageway configured to divert a second portion of pressurized air received by the air inlet to the air pressure indicator.
    Type: Application
    Filed: December 18, 2020
    Publication date: June 23, 2022
    Inventors: Huajun Tao, Hongjie Zhou, Yunzhong Yu, James F. Bouchard
  • Publication number: 20210078148
    Abstract: A pneumatically driven tool (e.g., an impact tool) includes a pneumatically driven motor; an electric generator generating electrical power from movement of the pneumatically driven motor, or an impact mechanism connected thereto; and an on-board light that is powered by the generated electrical power. The pneumatically driven motor is rotated by compressed air or gas and drives an impact mechanism with one or more hammers and an anvil. Impact of the hammer(s) with the anvil, in turn, move an output shaft of the pneumatically driven tool. The electric generator harnesses the rotational movement of the pneumatically driven motor and/or the impact mechanism to electrically power the on-board light.
    Type: Application
    Filed: September 13, 2019
    Publication date: March 18, 2021
    Applicant: Ingersoll-Rand Company
    Inventors: Warren A. Seith, Huajun Tao, Yunzhong Yu, Jinzhong Yang