Patents by Inventor Zhen-Liang Liao

Zhen-Liang Liao 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: 11759931
    Abstract: A nail drive device of electric nail gun includes a nailing rod and a rotary actuator that can output a specific rotation angle and can drive the nailing rod to move downward for nailing. Specifically, the rotary actuator includes a stator and a rotor surrounding it, between the stator and the rotor, even groups of electro-magnetic mutual action components are configured in pairs, to generate a tangential force to drive the rotor to rotate for a specific rotation angle, and to drive the nailing rod to move for a nailing stroke. The nailing stroke can be determined by the specific rotation angle. Thus, through the above configuration of the rotary actuator, the structure of the electric nail gun can be simplified.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: September 19, 2023
    Assignee: DE POAN PNEUMATIC CORP.
    Inventors: I-Tsung Wu, Chia-Sheng Liang, Zhen-Liang Liao, Wen-Chin Chen
  • Publication number: 20230182276
    Abstract: A nail drive method applied in an electric nail gun, in which a rotary actuator is driven to generate forward rotational kinetic energy for nailing. The rotary actuator has paired wire bundles and magnetic lines arranged in circumferential directions. The nail drive method comprises boosting a pre-loaded voltage of a battery to generate a peak voltage, and storing the electric charge generated by the peak voltage, and then releasing the peak voltage and its electric charge to the rotary actuator through a nailing signal, so that the wire bundles can generate a current to interact with the magnetic lines to generate a tangential force, so that the magnetic lines can drive the rotor to rotate for a specific angle, and the rotary actuator can directly generate a forward rotational kinetic energy for nailing. Thus, the energy conversion structure installed in the conventional electric nail gun can be omitted.
    Type: Application
    Filed: November 2, 2022
    Publication date: June 15, 2023
    Inventors: I-Tsung Wu, Chia-Sheng Liang, Zhen-Liang Liao, Wen-Chin Chen
  • Publication number: 20230055687
    Abstract: A nail drive device of electric nail gun includes a nailing rod and a rotary actuator that can output a specific rotation angle and can drive the nailing rod to move downward for nailing. Specifically, the rotary actuator includes a stator and a rotor surrounding it, between the stator and the rotor, even groups of electro-magnetic mutual action components are configured in pairs, to generate a tangential force to drive the rotor to rotate for a specific rotation angle, and to drive the nailing rod to move for a nailing stroke. The nailing stroke can be determined by the specific rotation angle. Thus, through the above configuration of the rotary actuator, the structure of the electric nail gun can be simplified.
    Type: Application
    Filed: June 23, 2022
    Publication date: February 23, 2023
    Inventors: I-TSUNG WU, CHIA-SHENG LIANG, ZHEN-LIANG LIAO, WEN-CHIN CHEN
  • Publication number: 20220371168
    Abstract: An air-path structure of pneumatic a nail gun, formed inside a gun body containing high-pressure air, comprises a main air chamber, a firing valve air chamber and a time-delayed air chamber that continuously releases the high-pressure air to the atmosphere. The gun body is configured with a trigger valve and a slider valve. The inside of the trigger valve is formed with a safety-on air chamber and a safety-off air chamber. The trigger valve controls the high-pressure air inside the firing valve air chamber to be discharged to the atmosphere. The slider valve controls the high-pressure air inside the main air chamber flowing toward the firing valve air chamber, the time-delayed air chamber and the safety-off air chamber. Specifically, the safety-on air chamber is constantly communicated with the main air chamber and constantly contains high-pressure air, and the slider valve can control the high-pressure air inside the safety-off air chamber flowing into the time-delayed air chamber.
    Type: Application
    Filed: April 19, 2022
    Publication date: November 24, 2022
    Inventors: I-TSUNG WU, CHIA-SHENG LIANG, ZHEN-LIANG LIAO
  • Patent number: 10016884
    Abstract: A pneumatic nail gun operated in automatic actuation mode includes a gun body, a trigger valve, and a shuttle valve. The gun body defines therein a main chamber and is provided with a forward air conduit and a return air conduit. The forward air conduit provides a path for the pressurized air in the main chamber to force a valve stem of the shuttle valve to conduct a forward movement for a drive stroke. The return air conduit provides a path for the pressurized air in the cylinder to force the valve stem to conduct a return movement after the nail gun has completed the drive stroke. By depressing an actuating bar of the trigger valve a single time, the valve stem can be forced to conduct repeated forward and return movements, and thus the nail gun can conduct repeated drive strokes for stably striking a nail.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: July 10, 2018
    Assignee: DE POAN PNEUMATIC CORP.
    Inventors: I-Tsung Wu, Hai-Lun Ma, Zhen-Liang Liao
  • Publication number: 20160151900
    Abstract: A pneumatic nail gun operated in automatic actuation mode includes a gun body, a trigger valve, and a shuttle valve. The gun body defines therein a main chamber and is provided with a forward air conduit and a return air conduit. The forward air conduit provides a path for the pressurized air in the main chamber to force a valve stem of the shuttle valve to conduct a forward movement for a drive stroke. The return air conduit provides a path for the pressurized air in the cylinder to force the valve stem to conduct a return movement after the nail gun has completed the drive stroke. By depressing an actuating bar of the trigger valve a single time, the valve stem can be forced to conduct repeated forward and return movements, and thus the nail gun can conduct repeated drive strokes for stably striking a nail.
    Type: Application
    Filed: January 12, 2015
    Publication date: June 2, 2016
    Inventors: I-Tsung Wu, Hai-Lun Ma, Zhen-Liang Liao