Patents by Inventor Steven S. Sunshine

Steven S. Sunshine 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).

  • System for measuring gases dissolved in a liquid
    Patent number: 6037592
    Abstract: A method and apparatus for continuously monitoring and measuring the concentration of gases in a gas-containing liquid such as a transformer oil. The method and apparatus employ a passive gas extraction technique which comprises a high performance membrane material to extract dissolved gases from the oil, and an IR-based sensor to detect gases present. The passive gas extractor extracts dissolved gas from the gas-containing liquid, there being a known relationship between the concentration of a constituent gas in the extracted gas and the concentration of the constituent gas remaining dissolved in the gas-containing liquid. The gas sensor senses the concentration of a constituent gas in the extracted gas, in the presence of other constituent gases.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: March 14, 2000
    Assignee: Underground Systems, Inc.
    Inventors: Steven S. Sunshine, David C. Bliven, John Seymour Mattis