Patents by Inventor David S. Fincher

David S. Fincher 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).

  • Pressure compensated communication system
    Patent number: 4926398
    Abstract: The present invention provides a pressure compensated communication system having at least one audio transducer, the pressure compensated communication system comprising a fluid tight housing for the or each audio transducer, the or each housing having a corresponding one of the or each of the audio transducers located therein and having an orifice coupled to a pressure compensation means, the pressure compensation means connected to the or each orifice and to a continuous supply of gas at a pressure equal to or slightly greater than the pressure of liquid surrounding the housing.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: May 15, 1990
    Assignee: Divelink Pty Ltd
    Inventor: David S. Fincher