Patents by Inventor Thomas J. Pitzer

Thomas J. Pitzer 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).

  • Hybrid self-rescue equipment
    Patent number: 10441827
    Abstract: A safety breathing apparatus has a delivery element configured to deliver respirable gas to a respiratory system of a user. The apparatus includes a breathing hose in fluid communication with a first source of respirable gas. A valve housing includes a first port configured to be couple to the delivery element, a second port configured to be coupled to the breaking hose, and a third port configured to dock with a second source of respirable gas without exposing the user to a surrounding atmosphere.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: October 15, 2019
    Assignee: Draeger Medical Systems, Inc.
    Inventors: Eric J. Robey, Robert H. Sell, Thomas J. Pitzer, William E. Dedig, Jr.