Deaerating valve for bagging pulverulent products

Details Deaerating valve for bagging pulverulent products Deaerating valve for bagging pulverulent products

B - Operations, Transporting

65

D

220/4

B65D 30/24 (2006.01) B65D 77/22 (2006.01) B65D 88/16 (2006.01)

Patent

CA 1111388

ABSTRACT OF THE DISCLOSURE The invention relates to a deaerating valve for bagging fluidized pulverulent products into sacks of the open-mouth type The valve includes a filtering sheet housed on the inside of the sack to be filled, this sheet having a texture and a thickness such that it multiplies the suction effect through the valve and plays the role of a "wick" to drain the air into a large space. The dimensions of the sheet are consi- derable with respect to those of the deaerating valve; its surface area may attain that of the flat spread- out sack. The invention is useful in the removal of air from impermeable bags designed to receive a micromized pulverulent product.

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