Patents by Inventor Hoi Pang Wang

Hoi Pang Wang 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).

  • Publication number: 20140208597
    Abstract: A hand-held vegetation trimmer includes a shaft, a cutting blade disposed at a first end portion of the shaft, a first handle disposed at a second end portion of the shaft, and a motor in communication with the cutting blade. The motor is disposed on the shaft. The motor is concentric with the shaft and is located between the cutting blade and the first handle.
    Type: Application
    Filed: January 16, 2014
    Publication date: July 31, 2014
    Inventors: Haijun ZHOU, Zhengjun WANG, Hoi Pang WANG, Koon For CHUNG
  • Patent number: 7510465
    Abstract: A lock formed from a body and a projection that is inserted into the aperture in the spindle to rotatably connect a sanding pad to the housing. The lock may include an arm rotatably mounted to the body that is movable between a first position wherein the arm can be manipulated to rotate the body with respect to the spindle and a second position where the arm is contained within the body.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: March 31, 2009
    Assignee: Eastway Fair Company Limited
    Inventors: Koon For Chung, Hoi Pang Wang, Wai Keung Lo
  • Patent number: 7410007
    Abstract: An impact rotary tool is provided that is switchable between an impact mode where the tool delivers an impacting torque on an output tool and a drill mode where the driver delivers a smooth output on an output tool. The impact rotary tool includes an impact mechanism and a hammer block that in the impact mode is movable parallel to the axis of the driver shaft and delivers reciprocating blows to rotate an anvil and in the drill mode substantially constantly engages the anvil. The impact mechanism includes a stopper that does not contact the hammer block in the impact mode and engages the hammer block in the drill mode to maintain the substantially constant contact between the hammer block and the anvil.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: August 12, 2008
    Assignee: Eastway Fair Company Limited
    Inventors: Koon For Chung, Hoi Pang Wang