US PATENT SUBCLASS 60 / 498
.~.~ Having tide responsive working member positioning means

Current as of: June, 1999
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60 /   HD   POWER PLANTS

495  DF  MOTOR HAVING A BUOYANT WORKING MEMBER {2}
497  DF  .~ Working member actuated by the rise and fall of a surface of a body of fluid {9}
498.~.~ Having tide responsive working member positioning means

DEFINITION

Classification: 60/498

(under subclass 497) Apparatus operable in a body of fluid whose surface rises and falls both in cycles of short periods, e.g., ocean waves, and in cycles of long periods, e.g., oceanic tides, said device having separate means responsive to each of said cyclic movements to cause said working member to move.