Air trapping device and nozzle therefore

Patent metadata

Field	Value
Publication number	US-12420217-B2
Application number	US-202217938303-A
Country	US
Kind code	B2
Filing date	Oct 5, 2022
Priority date	Aug 31, 2017
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

The present invention relates to a nozzle for an air trapping device configured to remove air from a fluid, the nozzle comprising a body having an input opening configured to receive the fluid and an output opening configured to distribute the fluid along an edge of the output opening, wherein the edge comprises a control element configured to reduce surface tension of the fluid. The present invention further relates to an air trapping device configured to remove air from a fluid and comprising the nozzle.

First claim

The invention claimed is:

1. Chromatography system comprising an air trapping device configured to remove air from a fluid,
the air trapping device comprising:
a receptacle configured to hold the fluid, and
a nozzle arranged in the receptacle, the nozzle comprising a body having an input opening configured to receive the fluid and an output opening configured to distribute the fluid along an edge of the output opening, wherein the body of the nozzle has a funnel shape and the input opening is smaller than the output opening,
wherein the receptacle comprises
a lid section,
a drainage section comprising a fluid outlet and a fluid inlet, and
a tubular section interconnecting the lid section with the drainage section, the nozzle further comprising a guiding element coupled to the body of the nozzle and configured to guide the fluid distributed along the edge of the output opening in a direction of gravity, wherein the guiding element comprises a tubular element coupled to the input opening of the body of the nozzle and is further coupled to the fluid inlet of the receptacle.

2. The chromatography system according to claim 1 , wherein the output opening of the nozzle is located in a top quarter of the tubular section.

3. The chromatography system according to claim 1 , wherein the edge of the output opening comprises a control element configured to reduce the surface tension of the fluid and/or formed as a sine shape.

4. The chromatography system according to claim 1 , wherein the guiding element is arranged to have a cross section which has an area less than 1/10 of an area of a cross section of the tubular section.

5. The chromatography system according to claim 1 , wherein the drainage section comprises a plurality of openings facing the tubular section, each opening being coupled to the fluid outlet.

6. The chromatography system according to claim 1 , wherein the drainage section is configured as having a funnel shape and having an opening facing the tubular section and being coupled to the fluid outlet.

7. The chromatography system according to claim 1 , wherein the tubular section comprises an annular bulge.

8. The chromatography system according to claim 1 , wherein the device is configured to be operated when oriented with the lid section in a direction opposite to the direction of gravity.

Assignees

• Cytiva Sweden Ab

Inventors

• Stafstrom Nils
• Johansson Bjorn
• Marcstrom Andreas

Classifications

• B05B1/08

  of pulsating nature, e.g. delivering liquid in successive separate quantities · CPC title

• B05B1/06

  in annular, tubular or hollow conical form · CPC title

• B01D19/02

  Foam dispersion or prevention (during boiling B01B1/02; during fermentation C12) · CPC title

• B01D15/12

  relating to the preparation of the feed · CPC title

• G01N30/16

  Injection (G01N30/24 takes precedence) · CPC title