Patents by Inventor Michael R. Guido

Michael R. Guido 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).

  • System for metering of breathing gas for accommodation of breathing demand
    Patent number: 4827964
    Abstract: An electronic-breathing mask system uses an electro-pneumatic valve for controlling air flow to a pilot. The system provides a continuous flow of air in an amount proportional to the pressure in the mask. The pressure in the mask is compared against a setpoint pressure to maintain a minimum derived pressure therein.
    Type: Grant
    Filed: April 23, 1987
    Date of Patent: May 9, 1989
    Assignee: Mine Safety Appliances Company
    Inventors: Michael R. Guido, Ellison L. Davison