Patents by Inventor Jeffrey Arthur Alvey

Jeffrey Arthur Alvey 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).

  • Powered air purifying respirator system and self contained breathing apparatus
    Publication number: 20040182394
    Abstract: A combination of an SCBA system for providing bottled air to a user and a PAPR system for purifying ambient air for use by a user wherein the two systems are used alternatingly depending on the contaminated condition of the ambient air and the oxygen content of the ambient air.
    Type: Application
    Filed: March 21, 2003
    Publication date: September 23, 2004
    Inventors: Jeffrey Arthur Alvey, Michael Brookman