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Structures Of Non-Positive Displacement Pumps
(AREA)
Abstract
Improved sealing device, characterized essentially by being constituted by a ring mounted on the neck of the impeller, with interposition of an elastic circular joint, and dragged by diametrical fittings on corresponding projections of said impeller, receiving the force of a compensating spring and incorporating at its other end, after an elastic joint, with an "L" section, the closing seal that frictionally rotates on the mounted fixed plate, also with interposition of elastic "L" seal on the pump casing. (Machine-translation by Google Translate, not legally binding)
Improvements in elastic joints in the form of bellows for joints with movement in all directions, especially labels. (Machine-translation by Google Translate, not legally binding)