Patents by Inventor Robert B. Beale

Robert B. Beale 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).

  • Patent number: 4658858
    Abstract: The present invention relates to a valve assembly for an oxygen regulator. Two valves mounted in a housing supply oxygen and air flows to a manifold in the housing for subsequent delivery to a recipient's mask. The valves operate as electromechanical servoactuators. The nozzle of each valve serves as a magnetic pole for a surrounding voice coil bobbin. The bobbin fits over the nozzle and has a solid center portion adapted to seal the opening. When current is applied to the voice coil, a force is generated in the bobbin causing it to move toward or away from the nozzle. Movement of the bobbin away from the nozzle varies the opening of the valve and allows gas to be admitted into the housing. A linear variable differential transducer connected to the bobbin senses when proper displacement corresponding to valve opening is attained.
    Type: Grant
    Filed: October 28, 1985
    Date of Patent: April 21, 1987
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Robert B. Beale
  • Patent number: 4648397
    Abstract: The present invention relates to a dilution control oxygen regulator for providing a desired oxygen concentration at different altitudes and pressures. Two valves supply oxygen and air to a recipient's mask. A pressure transducer in the mask measures suction pressure which is compared with a prescribed pressure command signal for a particular altitude to produce a pressure error. The error signal is compensated by a proportional-plus-integral controller, and is biased between the two gas valves proportional to an oxygen concentration schedule which prescribes a desired oxygen concentration percentage based on altitude. The biased and compensated error signal is used as valve opening displacement commands for establishing desired valve opening areas. A feedback loop around the electromechanical valve actuator means improves the stability and accuracy of valve settings.
    Type: Grant
    Filed: October 28, 1985
    Date of Patent: March 10, 1987
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Robert B. Beale