Patents by Inventor John DeMichael

John DeMichael 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).

  • Collection and separation of liquids of different densities utilizing fluid pressure level control
    Patent number: 5154835
    Abstract: Apparatus and associated methods of operation for the collection, separation and recovery of a contaminant from a body of water are provided which include as an essential element a collection tank which receives ingested liquids such as oil and water from one or more intake devices. The level of oil/water within the tank is controlled by means of pressurized gas, preferably air, which is selectively introduced into the tank, above the oil/water collection therein. The compressed air may also be utilized to remove the collected oil and to transmit the oil to storage.
    Type: Grant
    Filed: December 10, 1991
    Date of Patent: October 13, 1992
    Assignee: Environmental Systems & Services, Inc.
    Inventor: John DeMichael