Abstract: A gravitation pneumatic buoyant powered generation system includes a plurality of tanks and valve doors which controllably provide float balls to a drive mechanism which through buoyant force turns a drive shaft and operates a generator.

Abstract: A piston-cam engine includes a drive cylinder, a drive piston operably disposed therein having a piston head and a shaft, a support frame having a drive shaft rotatably movably connected thereto, a cam connected to the drive shaft having a peripheral surface and having a plurality of lobes thereon, a roller member connected to the piston shaft and adapted for engagement with the peripheral surface of the cam, and a biasing element for biasing the roller member continuously against the peripheral surface of the cam.

Abstract: A piston-cam engine includes a drive cylinder, a drive piston operably disposed therein having a piston head and a shaft, a support frame having a drive shaft rotatably movably connected thereto, a cam having a peripheral surface and having a plurality of lobes thereon, a roller member connected to the piston shaft and adapted for engagement with the peripheral surface of the cam, and a biasing element for biasing the roller member continuously against the peripheral surface of the cam. A support drive plate interconnects the piston shaft and the roller member and one or more slave cylinder(s) is provided adjacent the drive cylinder and has a slave piston operably disposed therein and has a piston head and a shaft, wherein the slave piston shaft is connected to the support drive plate to absorb part of a force exerted on the support plate during operation of the engine.