Importance

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Abstract

The present invention relates to an improved liquid pump (1) comprising at least one rotating pumping member (2, 3) and a drive shaft (4) rigidly constrained to said at least one rotating pumping member (2) and configured to drive said at least one rotating pumping member (2) into rotation, said at least one rotating pumping member (2, 3) being completely housed in a pumping chamber (6) formed within a pump casing (7), said drive shaft (4) being partially housed within said pump casing (7), between said drive shaft (4) and said pump casing (7) there being provided at least one liquid-tight seal (8) for preventing leakage of said liquid along said drive shaft (4), said pump (1) comprising a suction duct (9) in liquid communication with said pumping chamber (6) and a delivery duct (11) in liquid communication with said pumping chamber (6).

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First Claim