Patents by Inventor William H. Mints

William H. Mints 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).

  • Manually tunable, closed-circuit underwater breathing apparatus
    Patent number: 5485834
    Abstract: This invention is a manually tunable underwater breathing apparatus (UBA) which the resonant frequency of the UBA may be adjusted to meet the diver's breathing frequency by controlling the inertance component of the UBA impedance. The principles of the present invention may be adapted to existing UBA by adding a tuning apparatus comprising a valve, a tee and a tuned length of hose. Water displaced by volume change in the breathing bag due to exhalation/inhalation is partly diverted through the valve. Depending on the valve opening set by the diver the inertance and resonant frequency of the UBA can be altered to reduce breathing load.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: January 23, 1996
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Donald D. Joye, William H. Mints, John R. Clarke, Peter Wechgelaer