Prime-mover dynamo plants – Tide and wave motors
Patent
1996-11-05
1998-09-15
Stephan, Steven L.
Prime-mover dynamo plants
Tide and wave motors
290 42, 290 43, 290 54, 60502, F03B 1312
Patent
active
058083685
ABSTRACT:
A float (3) is attached by verticle mooring lines, or cables (8), to a pivoting lever device (2) which is mounted on a submerged anchor (1). The lever device is oriented perpendicular to the shoreline, with one arm of the lever pointing shoreward and the other pointing upward. The shoreward pointing arm is almost horizontal in orientation and long enough to compensate for tidal variations. The lines (8) from the float are attached to the end of the shoreward pointing arm. Verticle pull of the float will pull upward on the shoreward pointing arm (2B) and cause it to pivot about sealed bearings (2C), which causes the upper arm of the lever device (2A) to rotate in a largely horizontal arc away from shore, thus pulling on the main drive line (7) which is attached to the end of the upward pointing arm and which leads to shore. During wave troughs the float falls naturally and the lever device is returned to its prior position by the pull exerted on the main drive line (7) by a falling weight (11) which is located in the enclosed shore structure (6), in which an energy extraction device is also located. The shore structure has a device which temporarily restrains upward motion of the float as waves pass under it, so that when released it travels upward for a greater distance and with more velocity than it would otherwise obtain. The primary advantages are: (1) eliminating the need for any pier or frame exposed to the waves and storm damage; and (2) eliminating the need for cables to pass back and forth through pulleys with each rise and fall of the waves.
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Ponomarenko Nicholas
Stephan Steven L.
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