US 10,420,852 B2 · Method and device for generating a plurality of cold-plasma jets at atmospheric pressure

Abstract

The invention relates to a method (S) for generating a plurality of cold-plasma jets at atmospheric pressure in order to treat a target (2), wherein said method includes the following steps: producing (S1) a primary cold-plasma jet (3) at atmospheric pressure using a plasma source (10); placing (S2) a substrate (20, 21, 30, 32, 34) near the target (2) to be treated, said substrate (20, 21, 30, 32, 34) including at least two through-holes; and passing (S3) the plasma through the through-holes (22) of the substrate (20) such as to generate at least two secondary cold-plasma jets (4) at atmospheric pressure.

Claims15

Dependent claims

A method for generating a plurality of cold plasma jets at atmospheric pressure in order to treat a target, comprising the following steps:

producing a primary cold plasma jet at atmospheric pressure using a plasma source,
placing a substrate near the target to be treated, said substrate comprising at least two through holes,
passing the primary plasma jet through the through holes such as to generate at least two secondary cold plasma jets at atmospheric pressure, and
wherein the flow rate of the gas flow entering the plasma source is comprised between one and several standard cubic centimeters per minute and a few standard liters per minute.

1 more element

A device for generating a plurality of cold plasma jets at atmospheric pressure in order to treat a target, the device comprising:

a plasma source, configured to produce a primary cold plasma jet at atmospheric pressure,
a substrate comprising a plurality of through holes, and
means configured to pass the plasma through the through holes of the substrate such as to generate a plurality of secondary cold plasma jets at atmospheric pressure.

Dependencies are inferred from the claim text.

Facts

Application

15/529,430Filed 26 Nov 2015

Priority

FR 14 6151126 Nov 2014

Published

US 2017/0319727 A19 Nov 2017

Granted

24 Sep 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

A61L 2/14
Using physical processes: plasma, i.e. ionised gases
H05H 1/46
Generating plasma: using applied electromagnetic fields, e.g. high frequency or microwave energy
A61L 2202/11
Apparatus features: apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
H05H 1/4645
Using applied electromagnetic fields, e.g. high frequency or microwave energy: radiofrequency discharges

Method and device for generating a plurality of cold-plasma jets at atmospheric pressure

Life of this patent

Method and device for generating a plurality of cold-plasma jets at atmospheric pressure

Life of this patent

Abstract

Claims15