Patents by Inventor Yee Teh

Yee Teh 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).

  • Shape memory alloy actuator
    Publication number: 20070175213
    Abstract: A controller (44) for a SMA actuator (2) includes an electgric power source (46) for applying an electric current through an SMA element (8), a sensor (48) to detect change in an electric resistance of the element (8); and a regulator (50) for controlling the magnitude of the applied electric current. The regulator (50) applies a first current above a safe limit current for the element (8) until a selected change in the electric resistance is detected and applies a second current less than the first current after the change is detected.
    Type: Application
    Filed: February 8, 2005
    Publication date: August 2, 2007
    Applicant: The Australian National University
    Inventors: Roy Featherstone, Yee Teh