Scotch Yoke Mechanism Forced into Motion by Water Waves Generating Electricity from Buoyant Float

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1st Picture: FIG 2 illustrates a side view of water waves 1 forcing a float 2 up and down reciprocating a Scotch Yoke mechanism 12 that is forced into motion by the water waves 1 moving under a floating structure 2 connected to the reciprocating motion mechanism comprised of:

A float 2, reciprocating rod 3, and slotted Scotch Yoke 4, converts the linear motion of 9a, 9b, 9c, and 9d of a slider being lifted 9c, 9b, and 9a and lowered 9d from a wave 1 traveling under the float 2, into rotational motion 11, or vice versa. This invention teaches a water wave 1 generates electricity from lifting and lowering floating assemblies 12 from float 2 buoyancy UP and DOWN on water wave 1.

Floating assembly 12 is comprised of a buoyant float 2 connected to reciprocating rod 3, reciprocating within a cylinder 5. Rod 3 connects float 2 to slotted Scotch Yoke 4 to force rotation of flywheel 6 around flywheel center point 7 relative to forces applied within reciprocating Scotch Yoke slot 4 from rotating pin 8, providing electric generator rotation.

Variations are provided with optional shapes and mechanisms to optimize buoyant float 2 motions from water wave 1 that reciprocates 9a, 9b, 9c, and 9d within cylinders 5. Scotch Yoke mechanism 12 can float horizontally on water surface spaced waves. Patents Pending


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  • Name:
    David Zornes
  • Type of entry:
  • Profession:
    Business Owner/Manager
  • Number of times previously entering contest:
  • David is inspired by:
    I learned as chair of 100-Anniv of Aerospace in that structures should be simple and optimized for production.
  • Software used for this entry:
    Rhino CAD
  • Patent status: