Abstract: The invention relates to a vibratory floor made up of shaker modules protected against the entry of dust, and capable of emptying cohesive products. The inner volume (10) of each module is connected by means of a pipe (14) to an air or clean gas volume (19). Each module past the first row is provided with an anti-pressure device (46) made up of an anti-pressure plate (47) situated above the motor cover (44), supported by two flanges (48) and (49) resting on stationary parts (36) on either side of the module. The modules thus formed are protected against the entry of dust, and effectively emptying any cohesive product from silos, vessels, railroad cars or any other containers, without human or mechanized intervention.

Abstract: The invention relates to a vibratory floor made up of shaker modules protected against the entry of dust, and capable of emptying cohesive products. The inner volume (10) of each module is connected by means of a pipe (14) to an air or clean gas volume (19). Each module past the first row is provided with an anti-pressure device (46) made up of an anti-pressure plate (47) situated above the motor cover (44), supported by two flanges (48) and (49) resting on stationary parts (36) on either side of the module. The modules thus formed are protected against the entry of dust, and effectively emptying any cohesive product from silos, vessels, railroad cars or any other containers, without human or mechanized intervention.

Abstract: The invention relates to a vibratory floor consisting of independent vibratory modules that can be pre-fabricated and are strictly controlled before being put into place in structures for storage or transport of bulk products. Each vibratory module consists of a frame (14) in which a support material (12) is arranged, on which a metal sheet (9) is mounted, said metal sheet being attached to a vibratory element (10) and a stiffener (19) and held in place only by a peripheral sealing membrane (11), optionally supported by compression springs (13). The filling material can comprise ribs (30) for deforming the metal sheet in the form of transversal waves (31) under the effect of the weight of the stored product. The vibratory modules constructed in this way are dust-tight, do no transmit vibrations to the surrounding structure, and effectively drain any lumpy or powdery product from silos, ships, railroad cars, or other containers.

Abstract: The invention relates to a vibratory floor consisting of independent vibratory modules that can be pre-fabricated and are strictly controlled before being put into place in structures for storage or transport of bulk products. Each vibratory module consists of a frame (14) in which a support material (12) is arranged, on which a metal sheet (9) is mounted, said metal sheet being attached to a vibratory element (10) and a stiffener (19) and held in place only by a peripheral sealing membrane (11), optionally supported by compression springs (13). The filling material can comprise ribs (30) for deforming the metal sheet in the form of transversal waves (31) under the effect of the weight of the stored product. The vibratory modules constructed in this way are dust-tight, do no transmit vibrations to the surrounding structure, and effectively drain any lumpy or powdery product from silos, ships, railroad cars, or other containers.

Abstract: A bulk storage silo including a slanted floor opening into a discharge chute provided in the foundation of the silo wherein the floor is covered by a deck composed of a plurality of plates connected to vibrators arranged in a predetermined pattern which, when activated, causes the residual amount of grain which cannot be removed by gravity to flow into the discharge chute.

Abstract: In the measurement of the permeability of a filter medium a cake of the medium is formed in a holder by supplying an excess of the medium, as a suspension under pressure, to the holder, the pressure being relieved and the excess portion being removed to leave an undried cake of medium when the excess portion has dried to a given level as sensed by a pair of electrodes. Two further electrodes are used to determine the time for a given volume of liquid to pass through the cake for measuring its permeability.