Patents by Inventor Russell Watrous

Russell Watrous 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).

  • Low onset dual stage hybrid inflator
    Patent number: 6769714
    Abstract: A low onset dual stage hybrid inflator comprising a diffuser subassembly, a gas generator subassembly, and a pressure vessel. The dual stage inflator offers a variety of different output levels of inflation gas. The four main deployment scenarios for the dual stage inflator are primary output, staged output, full output, and secondary only. For primary output, only the stored gas is released from the inflator. For staged output, the stored gas is released and after a short period of time (i.e. 30 ms), the gas generant is ignited. For the full output, the stored gas is released from the dual stage inflator at the same time the gas generant is ignited. For secondary output, only the gas generant subassembly is fired, and the hot gases from the gas generant subassembly mix with the stored gas. The combination of the hot gas and the stored gas has sufficient pressure to rupture the burst disk.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: August 3, 2004
    Assignee: Key Safety Systems, Inc.
    Inventors: Edward O. Hosey, Keith Lam, John Adams, Don Burroughs, Russell Watrous, Michael Eugene Kelley
  • Low onset dual stage hybrid inflator
    Publication number: 20030230881
    Abstract: A low onset dual stage hybrid inflator comprising a diffuser subassembly, a gas generator subassembly, and a pressure vessel. The dual stage inflator offers a variety of different output levels of inflation gas. The four main deployment scenarios for the dual stage inflator are primary output, staged output, full output, and secondary only. For primary output, only the stored gas is released from the inflator. For staged output, the stored gas is released and after a short period of time (i.e. 30 ms), the gas generant is ignited. For the full output, the stored gas is released from the dual stage inflator at the same time the gas generant is ignited. For secondary output, only the gas generant subassembly is fired, and the hot gases from the gas generant subassembly mix with the stored gas. The combination of the hot gas and the stored gas has sufficient pressure to rupture the burst disk.
    Type: Application
    Filed: June 13, 2002
    Publication date: December 18, 2003
    Inventors: Edward O. Hosey, Keith Lam, John Adams, Don Burroughs, Russell Watrous, Michael Eugene Kelley