Patents by Inventor John G. Leibrand, Sr.

John G. Leibrand, Sr. 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).

  • Diesel fuel heater
    Patent number: 4612896
    Abstract: An apparatus for heating the fuel for an internal combustion diesel engine using the heat from the exhaust conduit. A fuel line wound helically around the engine exhaust conduit and spaced radially therefrom is contained in a canister substantially filled a heat conducting and heat regulating mixture of fire brick pellets and pellets of the platinized material used in automobile exhaust gas catalytic converters.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: September 23, 1986
    Assignee: "A" Co.
    Inventor: John G. Leibrand, Sr.
  • Method and apparatus for preheating fuel
    Patent number: 4326492
    Abstract: A method and apparatus for preheating fuel which employs a canister concentrically mounted on an exhaust pipe of an internal combustion engine, a fuel line through which fuel flows from the engine and which is helically wound within the canister about the pipe in radially spaced relation to the pipe, and a heat transfer fluid within the canister which surrounds the pipe and the line and is substantially the sole conductor of heat from the pipe to the line.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: April 27, 1982
    Assignee: Runfree Enterprise, Inc.
    Inventors: John G. Leibrand, Sr., Marlin L. Bessey