Patents by Inventor Steven M. SanFilippo

Steven M. SanFilippo 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).

  • Oxygen mask with rebreather bag for use with pulse oxygen delivery system
    Publication number: 20080245370
    Abstract: A supplemental oxygen system with a rebreather bag in combination with a pulsed delivery system.
    Type: Application
    Filed: February 6, 2008
    Publication date: October 9, 2008
    Inventors: Danko A. Kobziar, Steven M. SanFilippo
  • Bi-directional valve
    Publication number: 20080223457
    Abstract: A bi-directional valve having a housing with at least one internal gasket contact surface. A spring holds the plate, flapper and gasket against the internal gasket contact surface of the housing. When a predetermined pressure acts on the plate and flapper, the plate, flapper and gasket move away from the gasket contact surface to allow flow through the bi-directional valve in a first direction. To flow in the opposite direction the plate and gasket abut against the housing and the flapper opens to allow flow in an opposite direction. The same flow path is used for flow in either direction through the bi-directional valve.
    Type: Application
    Filed: February 7, 2008
    Publication date: September 18, 2008
    Inventors: Danko A. Kobziar, Steven M. SanFilippo