F03B 13/20

Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus ; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, {i.e. a "wom"} and another member, {i.e. a reaction member or "rem"} wherein both members {, i.e. wom and rem} are movable relative to the sea bed or shore