Patent ID: 6196811
Filing Date: 2001-03-06
Classification: F03G

Abstract:
A pump, comprising:a) a rigid first element;b) a rigid second element, the rigid second element being spaced apart from the first element;c) a piston and cylinder connecting the first element to the second element, the piston being displaceable relative to the cylinder;d) at least one of the first and second elements being displaceable in the direction of displacement of the piston relative to the cylinder;e) an operational element, the operational element being disposed between and operatively connected to the first and second rigid elements;f) the operational element expanding when absorbing a fluid and contracting when drying out, and the expanding of the operational element causing the first and second plates to move away from each other, thereby causing the piston to be displaced from the cylinder;g) a fitting operatively connected to the operational element, the fitting being configured for supplying and exhausting at least one of water and water vapor to the operational element;h) an intake and an exhaust conduit which supplies and removes an operational medium, the intake and exhaust conduit being operatively connected to the piston and cylinder; andi) whereby, when one of water and water vapor is supplied by the fitting to the operational element, the operational element absorbs the one of water and water vapor and the operational element expands, moves the first element and second element apart, displaces the piston relative to the cylinder, and thus sucks the operational medium into the cylinder.