IP Library Granted Patent US 9,107,970
Granted Patent B2
US 9,107,970 · App. 12/997,454 · Granted Aug 18, 2015

Method and a filter for capturing airborne agents

Inventors: Bror Morein (Uppsala, SE); Göran Friman (Uppsala, SE); Nils-Gunnar Ilbäck (Uppsala, SE)
A61L9/14A61L9/16B01D47/06B01D53/323A61L9/18A61L9/20B01D2221/10B01D2247/04B01D2247/101B01D2257/91F24F2003/1682
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Quick Facts
Patent No.
US 9,107,970
App. No.
12/997,454
Granted
Aug 18, 2015
Kind
B2
Abstract

A method for capturing airborne agents or products of agents, such as microorganisms, including viruses, and microbial antigens, toxins and allergens, comprising the formation of at least one curtain of charged particles in the form of an emulsion, a suspension or an aerosol, constantly renewing and regenerating said at least one curtain, and passing air containing airborne agents through said at least one curtain, which acting as a filter captures said agents; as well as a particle formulation for performing the method, comprising any charged particles dispersed in a liquid, including lipid-containing particles, e.g. in the form of an emulsion, or micelles, or lipid-containing particles in the form of an aerosol, or any other charged airborne particles in an aerosol.

Claims (5)

1. A method for capturing airborne agents or products of agents, said airborne agents or products of agents being selected from the group consisting of microorganisms, viruses, microbial antigens, toxins, allergens and harmful and potentially harmful molecules, comprising: forming at least one curtain in air of stably charged particles, said particles being in the form of an emulsion of lipid-containing particles, or micelles, or an aerosol of dry particles, constantly renewing and regenerating said at least one curtain, and passing air containing said airborne agents or products of agents through said at least one curtain, and capturing said airborne agents or products of agents having an opposite charge.

2. The method according to claim 1 , wherein said particles are collected and the captured airborne agents or products of agents are killed, and/or rendered harmless, respectively, and subsequently said particles are recirculated.

3. The method according to claim 2 , wherein said particles are regenerated before recirculation.

4. The method according to claim 1 , wherein said charged particles consist of built up polymers.

5. The method according to claim 1 , wherein said charged particles consist of latex particles.

Assignments (3)
CHANGE OF NAME Recorded Jan 11, 2023
From: 3 NINE AB
To: GRIMALDI DEVELOPMENT AB
Reel/Frame 062348/0955 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 12, 2019
From: 4 AIR SWEDEN AB
To: 3 NINE AB
Reel/Frame 050021/0671 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 7, 2016
From: MOREIN, BROR; FRIMAN, GORAN; ILBACK, NILS-GUNNAR
To: 4 AIR SWEDEN AB
Reel/Frame 037432/0700 →
Continuity (2)
Provisional Application 61080729 · Jul 15, 2008
Related Publication 20110104197A1 · May 5, 2011