Device making it possible to raise heavy and bulky objects from the bottom of water

摘要

Device making it possible to raise heavy and bulky objects from the bottom of water, or to carry out the controlled submersion of such objects. This device includes an inflatable volume (1) the pressure of which is regulated by means of a dip tube (4) which extends it at its lower part, which is weighted over its entire length, and the free end of which is equipped with a valve (6) allowing some of the air contained in the volume (1) to be discharged progressively during the operation. <IMAGE>