Patents by Inventor Wen-Hwei Liao

Wen-Hwei 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).

  • Electrical torque-indicating wrench
    Patent number: 7478566
    Abstract: An electrical torque-indicating wrench of the present invention, capable of providing accurate measurements, comprising: a wrench body having a head to engage and turn a workpiece, and a stem having two supporting portions protruding from its side surface or the cavity surface of the stem; a handle coupled with the stem and operable to turn the head about the rotational axis; strain bodies including strain gages, said strain bodies disposed on said support means are adapted to provide measured values of the torque; and a torque indicating device which is connected to said strain bodies transfers the measured values into a visual presentation for viewing.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: January 20, 2009
    Assignee: National Formosa University
    Inventor: Wen-Hwei Liao
  • Electrical torque-indicating wrench
    Publication number: 20080127748
    Abstract: An electrical torque-indicating wrench of the present invention, capable of providing accurate measurements, comprising: a wrench body having a head to engage and turn a workpiece, and a stem having two supporting portions protruding from its side surface or the cavity surface of the stem; a handle coupled with the stem and operable to turn the head about the rotational axis; strain bodies including strain gages, said strain bodies disposed on said support means are adapted to provide measured values of the torque; and a torque indicating device which is connected to said strain bodies transfers the measured values into a visual presentation for viewing.
    Type: Application
    Filed: December 4, 2006
    Publication date: June 5, 2008
    Inventor: Wen-Hwei Liao