Patents by Inventor Lyle Warzeka

Lyle Warzeka 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).

  • Breathing apparatus
    Patent number: 4898165
    Abstract: A universal manual resuscitator vavle which includes a filter is provided by which breathing circuit system elements can be protected from contamination by contaminants present in exhalation gases. In one embodiment, the valve assembly includes a valve flap which is attached at opposite edges and which is resiliently urged into a position such that an exhalation stack is closed in mode of operation.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: February 6, 1990
    Inventor: Lyle Warzeka