System and method for packaging powders
AssigneeIca S.P.A.
InventorGino RAPPARINI
Life of this patent
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Abstract
The present document presents a system and a method for packaging powders in containers (S) through a hopper (T) and a first tube (TC) connected to the hopper (T). Air is sucked both in the area of the first tube and in the area of the hopper. The powder is then drawn directly from inside the hopper thus keeping the flow rate and the degree of compacting of the system constant. Moreover, the powder sucked inside the first tube is thus compacted and can be conveyed compacted towards the outlet. In this way it is possible to control the dosing of the product exiting from the system with high precision.
Claims18
System for packaging powders comprising:
- a hopper adapted for receiving the powders and a first tube comprising an inlet connected to said hopper, wherein said first tube internally comprises a screw conveyor configured so as to rotate about an axis inside said first tube so as to convey the powders towards an outlet of said first tube,
- wherein said first tube is made of filtering material and is arranged inside a second tube so as to make a gap between said first tube and said second tube, said gap being configured so as to be able to be sealed;
- wherein said second tube comprises a first opening configured to be able to suck air from said gap and from said hopper.
9-30. (canceled)
Method for packaging powders in containers through a system that conveys the powders through a hopper and a first tube connected to said hopper towards the containers,
- wherein said method comprises the following step:
- sucking air from an inner region of said hopper and of said first tube so as to compact the conveyed powders.
32-38. (canceled)
42-44. (canceled)
A system for packaging powders comprising:
- a hopper having an outlet;
- a first porous tube having an inlet adjacent the outlet of said hopper;
- a screw conveyer extending through the outlet of said hopper and into said first porous tube;
- a second tube placed around said first porous tube, wherein a gap is formed between an exterior surface of said first porous tube and an interior surface of said second tube;
- and
- a vacuum coupled to the gap,
- whereby compactness of a powder dispensed from said first tube is capable of being controlled by said vacuum facilitating accurate packaging of the powder.
Dependencies are inferred from the claim text.