hardy

Claim 1

A COLLAPSIBLE CHAMBER MOTOR FOR THE COMPRESSION AND DISPLACEMENT OF FLUIDS COMPRISING IN COMBINATION; A BASE MEMBER HAVING A PAIR OF UNSTANDING SIDE WALLS; A CONCAVE FILLER CARRIED BY SAID BASE MEMBER; A RESILIENT DIAPHRAGM; MEANS CLAMPING SAID DIAPHRAGM IN AN ARCHED CONFIGURATION TO SAID BASE MEMBER, SAID DIAPHRAGM EXTENDING THE LONGITUDINAL LENGTH OF THE BASE MEMBER AND, IN COOPERATION WITH THE CONCAVE SURFACE OF THE SAID FILLER, DEFINING A PARTIALLY ENCLOSED ACTIVATING CHAMBER; THE SAID MEANS CLAMPING THE DIAPHRAGM FURTHER INCLUDING, A PAIR OF LONGITUDINALLY SLOTTED HOUSING CYLINDERS, A PAIR OF LONGITUDINALLY SLOTTED CLAMPING CYLINDERS EACH OF WHICH IS CONCENTRICALLY ARRANGED WITH AND JOURNALED FOR ROTATION WITHIN ONE OF THE SAID HOUSING CYLINDERS, THE SAID HOUSING CYLINDERS BEING RIGIDLY ATTACHED TO THE UPSTANDING SIDE WALLS OF THE SAID PUMP BASE MEMBER AND THE LENGTHWISE SIDE EDGES OF THE RESILIENT DIAPHRAGM PROTRUDING THROUGH THE LONGITUDINAL SLOTS OF THE INNER CLAMPING CYLINDERS, WHEREBY THE SAID DIAPHRAGM SIDE EDGES ARE TIGHTLY HELD BY THE INNER CYLINDERS AND ARE ADAPTED TO MOVE THROUGH AN ARC WHOSE CENTER IS THE LONGITUDINAL AXIS OF THE SAID CONCENTRIC CYLINDERS AND WHOSE LENGTH IS DEFINED BY THE WIDTH OF THE SLOT IN THE OUTER HOUSING CYLINDERS, SAID SLOTS BEING OF GREATER WIDTH THAN THE SLOTS IN THE INNER CLAMPING CYLINDERS;