Improvements introduced in the object of the main patent, by pump for the extraction of water (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the object of invention patent home ng 87/02569, by pump for water extraction, inside the remaining liquid removing a body of two double piston with cameras, cameras equipped two such conductos, de form one communicating with tube expulsion and the other with liquid extract, communicating these cameras with respective cameras external among the remaining one third full of oil chamber, being in the three chambers a piston provided at its ends of a piston chambers stayed in extreme and its central part of a third in full piston stayed oil chamber, whose drive will produce the plunge in shifting one way or another. (Machine-translation by Google Translate, not legally binding)