Patents by Inventor Eric C. Volpenhein

Eric C. Volpenhein 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).

  • Ground water collection method and apparatus
    Patent number: 5480260
    Abstract: A method and system for collecting ground water segregated from storm water are provided in which an existing storm sewer pipe may be retrofitted by forming a ground water channel and a storm water channel therein. The two channels may be formed by disposing a lining within the existing pipe which segregates the pipe into two distinct flow passageways. A new pipe may also be similarly used for collection of ground water.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: January 2, 1996
    Assignee: Dames & Moore
    Inventors: Dennis R. Shattuck, Eric C. Volpenhein