Patents by Inventor Robert Anthony Filipczak

Robert Anthony Filipczak 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).

  • Adiabatic expansion nozzle design criteria
    Patent number: 9216309
    Abstract: Design criteria are presented for an adiabatic expansion nozzle that overcomes previous deficiencies. The original patent demonstrated that dry ice could be produced, but the device clogged, was prone to fracture, and not optimized for any specific application Calculations are presented for a single application, the hand-held, 5-pound, carbon dioxide fire extinguisher. Design considerations for other fire sizes and firefighting applications are also presented.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: December 22, 2015
    Inventor: Robert Anthony Filipczak