Patents by Inventor Wen-Ger Chen

Wen-Ger Chen 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: 20110192035
    Abstract: Hand pruning tools include a force-multiplying mechanism and protected return spring. A proximal handle is coupled to a jaw, and a blade component is pivotably coupled to the jaw through a blade pivot. A distal handle is pivotably coupled to the proximal handle through a handle pivot spaced apart from the blade pivot. The distal handle has a longitudinal cavity with a slot pin. The blade component has one end with a blade that engages with the jaw, and an opposing end with an elongated slot that engages with the slot pin. A return spring disposed in the cavity pulls on the opposing end of the blade component, thereby facilitating a closed configuration wherein the slot pin is in the slot toward the blade pivot and the blade is adjacent the jaw, and an open configuration wherein the slot pin is in the slot away from the blade pivot and the blade is spaced apart from the jaw.
    Type: Application
    Filed: February 9, 2010
    Publication date: August 11, 2011
    Inventor: Wen Ger Chen
  • Patent number: 5926962
    Abstract: A saw includes a saw blade pivotally connected to the handle which is an enclosed handle having a curved top portion to which the user's hand holds and a bottom portion consists of two frames between which a slit is defined so that the saw blade is received between the two frames via the slit. Each of the frames has a slot defined there through which communicates with the slit so that the toothed side of the saw blade is accessed via the slots.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: July 27, 1999
    Inventor: Wen-Ger Chen