Patents by Inventor Harvey R. Prins

Harvey R. Prins 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).

  • Fuel container systems
    Patent number: 3949720
    Abstract: This invention, in one embodiment useful as a vehicular fuel container, includes as rigid outer tank, a collapsible inner bladder, expansion volumes positioned between said tank and said bladder, and means for causing fuel vapors to be removed from the bladder and injected into the vehicle carburation system for subsequent combustion.
    Type: Grant
    Filed: February 25, 1974
    Date of Patent: April 13, 1976
    Inventors: Charles F. Zipprich, Harvey R. Prins, Keith M. Gagnier