Apparatus and method for impregnation by transferring a powder into a porous substrate
AssigneeFibroline France
InventorJoric MARDUEL
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Abstract
An installation for impregnating a porous substrate by transfer of powder, including an area for storing the powder, and an endless conveyor capable of being moved, which includes an external surface containing cavities. The external surface of the conveyor delimits an edge of the storage area to fill said cavities with the powder. The installation comprises a positioner for holding the porous substrate in contact with a fraction of the conveyor length, to seal cavities containing the powder. A drive device enabling to move the conveyor and the porous substrate, and means for displacing the powder are arranged opposite said fraction of the conveyor length, to at least partly displace a portion of the powder across the porous substrate.
Claims13
An installation for impregnating a porous substrate by transfer of powder, comprising:
- an area for storing the powder;
- and
- a conveyor capable of coming into contact with the porous substrate and having an external surface comprising cavities;
- wherein:
- the external surface of the conveyor delimits an edge of the storage area to fill said cavities with the powder;
- and
- a positioner configured to hold the porous substrate in contact with a fraction of the conveyor length, to seal cavities containing the powder along said fraction of the conveyor length;
- and
- a drive device enables to move the conveyor and the porous substrate;
- and
- an actuator configured to displace the powder and arranged opposite said fraction of the conveyor length, to at least partly displace a portion of the powder across the porous substrate.
A method of impregnating a porous substrate with powder, wherein powder is deposited in the cavities present on an intermediate transfer element, and wherein the porous substrate is then placed into contact with the intermediate transfer element to seal the cavities containing the powder, and wherein the powder is then moved in the cavities to favor the insertion thereof into the substrate sealing said cavities.
Dependencies are inferred from the claim text.