Tube type pump and wave motor

Claim 1

A wave energy conversion apparatus comprising: a pair of members interconnected by a hinge adapted to undergo relative angular movement under the influence of waves in a body of water; and, a pump comprising a length of hose, end closures for said hose, means connecting opposite ends of said hose to said end closures in a fluid tight manner, fluid inlet and outlet means communicating with the hose interior, and non-return valves respectively provided in said fluid inlet and outlet, said hose being reinforced by a substantially inextensible reinforcement wound helically about said hose and arranged so that when said end closures are relatively angularly moved fluid within said hose is subject to a constricting action by said reinforcement, said end closures being connected to said pair of pivoted members with said end closures being substantially coaxial with said hinge members such that said hose is twisted and untwisted in response to relative angular movement of said members to vary the internal volume of said hose, said hose drawing fluid through said inlet and associated non-return valve when untwisting and expelling water through said outlet and associated non-return valve when twisting.