Patents by Inventor Richard Cushing

Richard Cushing 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 system to achieve two dimensional air sparging
    Patent number: 5588490
    Abstract: A method and apparatus for removing volatile contaminants from the phreatic zone of contaminated ground. The apparatus is a system comprised of at least one air injection well and at least two pressure relief wells arranged in a line. Air is injected into the contaminated ground water to allow sparging of the volatile contaminants from a linear region between injection and relief wells. The volatile contaminants are captured by the injected air and carried to the extraction line for removal and treatment.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: December 31, 1996
    Assignee: Geraghty & Miller, Inc.
    Inventors: Suthan S. Suthersan, Boris Dynkin, Richard Cushing