Patents by Inventor Leo L. Heikkinen

Leo L. Heikkinen 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).

  • Self-propelled wood processing apparatus
    Patent number: 4373564
    Abstract: A self-propelled and steerable wood processing system for converting a log into firewood wherein the wood processing system has a pick-up mechanism that can be advanced into a pile of logs to be cut with the pick-up mechanism rotatably mounted to permit placing a log on a log deck where it can be fed into a cutting and splitting mechanism for forming the log into firewood.
    Type: Grant
    Filed: November 13, 1980
    Date of Patent: February 15, 1983
    Inventor: Leo L. Heikkinen
  • Firewood systems
    Patent number: 4281697
    Abstract: An apparatus for converting a log into firewood including a remotely controlled log carrier bed, a log cutter and a log splitter and log conveying systems that allow the log to be converted into firewood in one continuous operation.
    Type: Grant
    Filed: April 25, 1979
    Date of Patent: August 4, 1981
    Assignee: LaFont Corporation
    Inventors: Leo L. Heikkinen, Charles L. Lundborg
  • Firewood systems
    Patent number: 4173237
    Abstract: An apparatus for converting a log into firewood including a remotely controlled log carrier bed, a log cutter and a log splitter and log conveying systems that allow the log to be converted into firewood in one continuous operation.
    Type: Grant
    Filed: August 4, 1977
    Date of Patent: November 6, 1979
    Assignee: LaFont Corporation
    Inventors: Leo L. Heikkinen, Charles L. Lundborg
  • Portable automobile rim crusher
    Patent number: 4083394
    Abstract: An apparatus for removing the rubber tire casing from the steel rim of an automobile wheel which comprises a set of hydraulic cylinders and wedge shaped members which simultaneously converge on the tire casing and wheel to deform the tire rim into the figure of a three-leaf clover so that the tire rim can easily be removed from the inside of the casing. The wedge shaped member includes means for gripping a tire.
    Type: Grant
    Filed: December 8, 1976
    Date of Patent: April 11, 1978
    Assignee: LaFont Corporation
    Inventors: Leo L. Heikkinen, Kenneth D. Danielson, Charlie L. Lundborg