Liquid filtration device comprising an ultrasound emission module

Patent metadata

Field	Value
Publication number	US-12564815-B2
Application number	US-202017779228-A
Country	US
Kind code	B2
Filing date	Nov 24, 2020
Priority date	Nov 26, 2019
Publication date	Mar 3, 2026
Grant date	Mar 3, 2026

Abstract

A device for filtering liquids, including a filtration module and an ultrasound emission module, where the ultrasound emission module is fixed distant from the filtration module using a fixing means, and the ultrasound emission module is equipped coaxially along its axis with a weight or is equipped perpendicular to its axis with at least one weight, the filtration module and the ultrasound module equipped with its at least one weight going into resonance via the fixing means when the ultrasound emission module emits ultrasound.

First claim

The invention claimed is:

1 . A liquid filtration device, comprising:
a filtration module extending along a first axis; and an ultrasound emission module; wherein the ultrasound emission module is fixed to the filtration module using a fixing means, and the ultrasound emission module is equipped perpendicular to a second axis with two weights arranged axially opposite on either side of the second axis of the ultrasound emission module, wherein the ultrasound emission module and said two weights are connected by a connection element, wherein the connection element is in the shape of a cross, said two weights extending coaxially along a third axis perpendicular to the second axis, wherein the filtration module and the ultrasound module equipped with the two weights are configured to go into resonance via the fixing means when the ultrasound emission module emits ultrasound.

2 . The filtration device according to claim 1 , wherein the filtration module is tubular shaped along the first axis.

3 . The filtration device according to claim 1 , wherein the fixing means is a flange which surrounds the filtration module and makes it possible to fix, distant from the filtration module, the ultrasound emission module equipped with said weight or said at least one weight.

4 . The filtration device according to claim 1 , wherein the fixing means is a chemical fixing means comprising at least one of a polymeric glue, a cement, and a weld.

5 . The filtration device according to claim 1 , wherein the fixing means is fixed to the filtration module by welding.

6 . The filtration device according to claim 1 , wherein said ultrasound emission module is fixed to the fixing means by a stud, an anchoring pin or one or more screws.

7 . The filtration device according to claim 1 , wherein the filtration module comprises a filter chosen from among a ceramic filter, a hollow fiber polymeric membrane, a ceramic membrane.

8 . The device according to claim 1 , wherein the filtration module, the fixing means and the ultrasound emission module equipped with its weight form a single piece.

Assignees

• Univ Grenoble Alpes
• Inst Polytechnique Grenoble
• Centre Nat Rech Scient

Inventors

• Hengl Nicolas
• Pignon Frédéric
• Gondrexon Nicolas
• Baup Stéphane
• Jin Yao

Classifications

• B01D2321/2058

  by vibration of the membrane, e.g. with an actuator · CPC title

• B01D2315/04

  Reciprocation, oscillation or vibration · CPC title

• B01D2313/13

  Specific connectors · CPC title

• B01D65/02

  Membrane cleaning or sterilisation {; Membrane regeneration} · CPC title

• B01D63/16

  Rotary, reciprocated or vibrated modules · CPC title