Patents by Inventor Philip M. Stewart

Philip M. Stewart 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).

  • Sterilizer including air purging system and pressure actuated door seal
    Patent number: 6984359
    Abstract: A sterilizer including a sterilization chamber for receiving articles to be sterilized and a door supported on a horizontal pivot at an access opening of the sterilizer chamber. The door includes a seal plate and a resilient seal member supported on the seal plate wherein the seal member includes an annular lip extending transversely to the plane of the seal plate. The lip extends into the sterilizer chamber wherein pressure within the chamber exerts a force biasing an opposing surface of the lip into engagement with an inner surface of the chamber. The sterilizer door is movable between a fully closed and a fully open position and includes a mechanism for holding the door in a partially open position. In the partially open position, the lip extends into contact with a surface of the sterilizer chamber to thereby form a bridge between the door and chamber and prevent condensation from dripping down away from the chamber and door.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: January 10, 2006
    Assignee: Midmark Corporation
    Inventors: Edward J. Florkey, Ronald A. Gatchell, Richard L. Jones, Michael J. Coyle, Philip M. Stewart
  • Sterilizer including air purging system and pressure actuated door seal
    Publication number: 20020085945
    Abstract: A sterilizer including a sterilization chamber for receiving articles to be sterilized and a door supported on a horizontal pivot at an access opening of the sterilizer chamber. The door includes a seal plate and a resilient seal member supported on the seal plate wherein the seal member includes an annular lip extending transversely to the plane of the seal plate. The lip extends into the sterilizer chamber wherein pressure within the chamber exerts a force biasing an opposing surface of the lip into engagement with an inner surface of the chamber. The sterilizer door is movable between a fully closed and a fully open position and includes a mechanism for holding the door in a partially open position. In the partially open position, the lip extends into contact with a surface of the sterilizer chamber to thereby form a bridge between the door and chamber and prevent condensation from dripping down away from the chamber and door.
    Type: Application
    Filed: November 21, 2001
    Publication date: July 4, 2002
    Inventors: Edward J. Florkey, Ronald A. Gatchell, Richard L. Jones, Michael J. Coyle, Philip M. Stewart