Patents by Inventor Christopher Rodney Bee

Christopher Rodney Bee 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).

  • Respirators
    Patent number: 7089931
    Abstract: A respirator (1) having a plurality of internal masks (2, 3) within an external mask (4), the inner masks (2, 3) being linked by ducts (8, 9) so as to direct the inhaled air from the outside of the mask to the oronasal area via an ocular mask. The oronasal mask (3) has a secondary valve (12) that is sprung so as to operate within the timeframe of the exhalation part of the breathing cycle, the exhaled air being ejected into the hollow outer body of the mask (4).
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: August 15, 2006
    Assignee: Secretary of State for Defence
    Inventor: Christopher Rodney Bee