Fluid pumps energized by magnetostrictive action

Claim 1

A FLUID PUMP OF THE TYPE DESCRIBED, COMPRISING: A PUMPING COMPARTMENT; AN INLET PASSAGE AND OUTLET PASSAGE COMMUNICATING WITH SAID COMPARTMENT; UNIDIRECTIONAL VALVE MEANS DISPOSED IN RELATION TO THE INLET AND OUTLET CONNECTIONS SO AS TO ALLOW FLUID FLOW ONLY IN THE COMPARTMENT FROM THE INLET MEANS AND ONLY OUT OF THE COMPARTMENT FROM THE OUTLET MEANS; A CLOSED BELLOWS ARRANGEMENT CAPABLE OF VARYING THE VOLUME OF THE COMPARTMENT AS IT EXPANDS AND CONTRACTS FORMING AT LEAST A PORTION OF THE WALL OF SAID COMPARTMENT, AT LEAST A PORTION OF THE WALLS OF THE BELLOWS BEING FORMED OF LAMINATED, MAGNETOSTRICTIVE RINGS; A WIRE COIL MAGNETICALLY COUPLED TO AT LEAST A PART OF THE SAID BELLOWS MEMBER; AND MEANS FOR PASSING ELECTRIC CURRENT THROUGH SAID COIL SO AS TO CREATE A MAGNETIC FIELD, AT LEAST A PORTION OF WHICH PASSES THROUGH SAID RINGS, WHEREBY VARIATIONS IN THE ELECTRIC CURRENT PASSING THROUGH SAID COIL VARIES SAID MAGNETIC FIELD, SO AS TO CAUSE SAID MAGNETOSTRICTIVE RINGS TO EXPAND AND CONTRACT IN ORDER TO VARY THE VOLUME OF THE FLUID COMPARTMENT.