Patents by Inventor R. Stephen Scheffee

R. Stephen Scheffee 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 ash gas generant and ignition compositions for vehicle occupant passive restraint systems
    Patent number: 6334961
    Abstract: Solid gas generant compositions produce low particulates (e.g., condensed ash) when ignited. The solid gas generant compositions most preferably include a nitramine, at least one oxidizer selected from nitrates of strontium or cerium, in admixture with or without potassium perchlorate, and a binder. Graphite may optionally be employed. The gas generant compositions are usefully employed in inflatable vehicle occupant passive restraint systems (e.g., air bag systems).
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: January 1, 2002
    Assignee: Atlantic Research Corporation
    Inventors: Brian K. Wheatley, Norman H. Lundstrom, Robert D. Lynch, R. Stephen Scheffee, James D. Martin