Patents by Inventor Dennis C. Mahoney

Dennis C. Mahoney 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).

  • Mouthpiece accessory and seal
    Patent number: 4222378
    Abstract: An ovate convex-concave shaped flexible mouthpiece accessory and seal for a positive pressure breathing apparatus mouthpiece having a continuous raised edge of uniform shape and dimension along the edge of the concave side of the faceplate and a rectangular shaped, shape-retaining tube extending perpendicularly outwardly from the concave side at the center of the faceplate and integral with an oval shaped opening in the faceplate.
    Type: Grant
    Filed: October 24, 1978
    Date of Patent: September 16, 1980
    Inventor: Dennis C. Mahoney