Patents by Inventor Mang Tia

Mang Tia 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 and apparatus for testing water permeability of concrete
    Patent number: 5219388
    Abstract: A method for measuring the water permeability in a concrete structure comprising: (a) pressure sealing a selected length of a borehole in the concrete structure, (b) injecting an aqueous medium into the selected length of borehole, (c) applying sufficient pressure to the injected aqueous medium and for a time necessary to produce a substantially steady state, measurable flow of the aqueous medium into the concrete structure from the selected length of borehole, (d) measuring the steady state flow of aqueous medium, and (e) computing from the steady state flow measurement the water permeability of the concrete structure. An apparatus employing the method is also disclosed.
    Type: Grant
    Filed: January 17, 1992
    Date of Patent: June 15, 1993
    Assignee: University of Florida
    Inventors: Constantinos A. Meletiou, David G. Bloomquist, Mang Tia