Patents by Inventor Stephen E. Magill

Stephen E. Magill 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).

  • Exhaust regulator valve for push-pull diving system
    Patent number: 4037594
    Abstract: A diving helmet exhaust regulator valve maintains helmet pressure substanlly constant in a push-pull system wherein breathing gas is supplied under pressure (push) at a constant rate and respired gas is exhausted to a low pressure (pull) conduit for return to a regenerator. The regulator valve is characterized by a throttling valve member operated by a piston that is acted upon by ambient sea pressure and helmet pressure independently of pressures in the upstream exhaust passages, or of exhaust flow rate.
    Type: Grant
    Filed: April 26, 1976
    Date of Patent: July 26, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Peter S. Riegel, Stephen E. Magill, Dwain R. Schroeder