Patents by Inventor Paul L. Harrell

Paul L. Harrell 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 vaporizing system for internal combustion engines
    Patent number: 5937838
    Abstract: A method and apparatus for assisting in the reduction of pollutants from liquid-fuel burning (e.g. internal combustion) engines comprises, in a first sense, methods and apparatus for subjecting liquid fuel to multiple stages of vaporization before entering the combustion chambers of internal combustion engines, and, in another sense, method and apparatus for interposing a screening device between a first source of misted fuel (providing first vaporization) and the combustion chamber, thereby accomplishing at least a second vaporization of the fuel prior to combustion.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: August 17, 1999
    Assignee: Vaporizer LLC
    Inventor: Paul L. Harrell