Patents by Inventor Raymond C. Achterberg

Raymond C. Achterberg 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).

  • Variable compression and asymmetrical stroke internal combustion engine
    Patent number: 6230671
    Abstract: A variable compression and asymmetrical stroke internal combustion engine includes a cylinder, a drive piston reciprocally disposed in the cylinder, an auxiliary piston reciprocally disposed in the cylinder, apparatus for reciprocating the auxiliary piston at twice the speed of the drive piston and in a manner wherein the relative reciprocation is asymmetrical, an intake port communicably connected to the cylinder, an exhaust port communicably connected to the cylinder, and an ignition device operably connected to the cylinder.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: May 15, 2001
    Inventor: Raymond C. Achterberg