Oscillating Piston (e.g., Vane, Etc.) Patents (Class 91/223)
  • Patent number: 8418672
    Abstract: An internal combustion engine having a generally rotary design is described. The engine includes a rotor that alternately rotates about first, second, and third axes of rotation as the rotor circulates within the engine. Each axis of rotation is about perpendicular to the other two axes of rotation. The rotor includes two flanges that alternately compress fluid in combustion chambers as the flanges rotatably enter and sweep through compression lobes. Detonation of compressed, combustible fluid occurs in the combustion chambers, force from the detonation driving the rotor about the axes of rotation. The rotor exerts maximum leverage on a power shaft at the point of detonation, and continues to exert similar leverage on the power shaft as the rotor rotates. The engine typically includes one or more power modules, each of the one or more power modules having three compression lobes and three combustion chambers.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: April 16, 2013
    Inventor: James L. Groves
  • Patent number: 6179545
    Abstract: A flip-over ramp assembly is normally stowed in a horizontal position in a recess in a vehicle floor, and can be pivoted upward and outwards to a downward sloping deployed position, after the vehicle door has been opened. The flip-over ramp assembly comprises a mounting enclosure and a ramp which are pivotably connected at their adjacent edges by a hinge which provides a horizontal axis for movement of the ramp between deployed and stowed positions. A driving mechanism comprises an actuator and a driving shaft which is rotatably connected to the actuator. A pair of linkage assemblies are connected to the driving shaft, where the actuator drives the driving shaft which in turn moves the linkage assemblies to lift the ramp to the stowed or deployed position. A positioning cam rotates with the driving shaft for indicating the position of the ramp.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: January 30, 2001
    Assignee: Ricon Corporation
    Inventors: Lee B. Petersen, Jr., John C. Hall