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REVIEW  OF WAVE CONVERTERS & PATENTS

​POINT ABSORBER - BUOY ON SPAR WAVE CONVERTER TYPE

​This point absorber system is also known as "Donut on a stick" and consists of a floating structure which absorbs energy from all directions through its movements at/near the water surface. It converts the motion of the float relative to the base, which is a spar pole float and may use a heave plate and / or a 2nd counter acting float, into a useable power form. The power take-off system may be: high speed rotary generator, linear generator, liquid and air pump or turbine.

Patents show off  shore systems with Pump, Rotary and Linear Generator PTO devices

 

Image from:  http://nnmrec.oregonstate.edu/wavebob-point-absorber

 

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 With Direct Pump:  ​​​​​​​​​​  ​

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With Rotary:                     1897  

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With Linear Generator:    

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NOTE: to view a complete patent:

     1.  Open Google, search for "Google Patent Search",

     2.  Open this search sub-set & type in Patent Number, or Inventor Name, or General Descriptive Words and a Date, etc.

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​PATENT EXAMPLES OF THIS TYPE

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