Patents by Inventor Chia-Men Hsiao

Chia-Men Hsiao 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).

  • Method for measuring cover thickness of reinforcing bar in concrete by using stress wave
    Patent number: 6029521
    Abstract: A method for measuring the cover thickness of a reinforcing bar in concrete. An impacting device and a receiver are disposed on the concrete surface along the longitudinal axis of the reinforcing bar with a predetermined distance H provided between the impacting device and the receiver. Then, an impact is applied on the concrete surface by the impacting device, to generate a dilatational wave which propagates into the concrete and is totally refracted at an interface between the concrete and the reinforcing bar, and is received by the receiver. Then, the cover thickness of the reinforcing bar is calculated according to the travel time for the dilatational wave from the impact device through the reinforcing bar to the receiver.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: February 29, 2000
    Assignee: National Science Council
    Inventors: Yiching Lin, Chia-Chi Cheng, Chia-Men Hsiao