Patents by Inventor Carolyn Yeager

Carolyn Yeager 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).

  • Non-toxic primer mix
    Patent number: 6478903
    Abstract: A non-toxic primer mix including both bismuth sulfide and potassium nitrate as the pyrotechnic portion of the primer is disclosed. In a further embodiment, a non-toxic primer mix comprising zinc sulfide and aluminum nitrate as the pyrotechnic portion of the primer mix is disposed. Bismuth and zinc sulfide act as fuels for the oxidizers of potassium and aluminum nitrate in providing an ignition flame for the primer. The non-toxic primer mix further contains a lead-free explosive material, and additionally can include added fuels, sensitizers, explosives and binders.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: November 12, 2002
    Assignee: RA Brands, LLC
    Inventors: Henry J. John, Jr., Carolyn Yeager, Don Pile, Tim Webb