Method of and apparatus for pumping

Claim 1

IN A PUMP, THE COMBINATION OF A SUPPORT, AN ELONGATED TUBE OF RESILIENT MATERIAL, CLAMPS SECURING SPACED INLET AND OUTLET END PORTION OF SAID TUBE TO SAID SUPPORT IN LATERALLY SPACED GENERALLY PARALLEL RELATION TO FORM A U WITH SUCH PORTION CONSTITUTING LEGS OF THE U, A ROTARY MEMBER MOUNTED ON SAID SUPPORT TO ROTATE ABOUT AN AXIS EXTENDING TRANSVERSELY OF THE PLANE OF SAID LEGS AND SPACED SUBSTANTIALLY EQUIDISTANTLY FROM THE LEGS, AND AN INTERMEDIATE CLAMP SECURED TO SAID TUBE AT A POINT APPROXIMATELY EQUIDISTANT FROM SAID INLET AND OUTLET CLAMPS AND PIVOTALLY CONNECTED TO SAID ROTARY MEMBER AT A POINT SPACED FROM SAID AXIS WHEREBY, WHEN THE MEMBER IS ROTATED UNIDIRECTIONALLY, THE PORTIONS OF THE TUBE BETWEEN THE INTERMEDIATE CLAMP AND THE RESPECTIVE INLET AND OUTLET CLAMPS, ARE ALTERNATELY BENT AND EXTENDED TO FORM BENDS WHICH SHIFT ALONG THE TUBE AND TO OPEN SUCH BENDS IN A SEQUENCE TO CAUSE A FLUID FLOW FROM SAID INLET PORTION TO SAID OUTLET PORTION, THE MAXIMUM SPACING BETWEEN SAID INTERMEDIATE CLAMP AND THE RESPECTIVE INLET AND OUTLET CLAMPS IN EACH REVOLUTION OF SAID MEMBER BEING GREATER THAN THE LENGTHS OF THE TUBE BETWEEN SUCH CLAMPS IN THE RELAXED CONDITION OF THE TUBE SO THAT EACH TUBE LENGTH IS STRETCHED LONGITUDINALLY AS THE LENGTH IS EXTENDED TO OPEN THE BEND IN THE LENGTH.