Global patent index - EP 1037858 A1

EP 1037858 A1 2000-09-27 - DEVICE AND METHOD FOR CREATING SPHERICAL PARTICLES OF UNIFORM SIZE

Title (en)

DEVICE AND METHOD FOR CREATING SPHERICAL PARTICLES OF UNIFORM SIZE

Title (de)

VORRICHTUNG UND VERFAHREN ZUR HERSTELLUNG VON KUGELFÖRMIGEN TEILCHEN EINHEITLICHER GRÖSSE

Title (fr)

DISPOSITIF ET PROCEDE POUR CREER DES PARTICULES SPHERIQUES DE TAILLE UNIFORME

Publication

EP 1037858 A1 (EN)

Application

EP 98960045 A

Priority

  • ES 9702654 A
  • IB 9802052 W
  • US 19217498 A

Abstract (en)

[origin: WO9931019A1] Spherical particles having a size on the order of 0.1 to 100 microns in size are created by systems and devices of several types. The device includes a source of a stream of gas which is forced through a liquid held under pressure in a pressure chamber with an exit opening therein. The stream of gas surrounded by the liquid in the pressure chamber flows out of an exit orifice of the chamber into a liquid thereby creating a monodispersion of bubbles with substantially uniform diameter. The bubbles are small in size and produced with a relatively small amount of energy relative to comparable systems. Small particles of liquid may also be produced. Applications of the technology range from oxygenating sewage with monodispersions of bubbles to inhalation therapy with monodisperse aerosol dispersions of pharmaceutically active drugs.

IPC 1-7 (main, further and additional classification)

C02F 3/20; B01F 3/04; B05B 7/06

IPC 8 full level (invention and additional information)

C02F 3/20 (2006.01); A61M 15/00 (2006.01); B01F 3/04 (2006.01); B01F 3/08 (2006.01); B01F 5/04 (2006.01); B05B 7/04 (2006.01); B05B 7/06 (2006.01); B05B 7/08 (2006.01); F02M 43/04 (2006.01); F02M 67/10 (2006.01); F02M 69/04 (2006.01); F02M 69/08 (2006.01); F23D 11/10 (2006.01); G01N 21/01 (2006.01); B05B 1/02 (2006.01); B81C 1/00 (2006.01); C40B 60/14 (2006.01); G01N 15/14 (2006.01)

CPC (invention and additional information)

B82Y 30/00 (2013.01); A61M 11/001 (2013.01); A61M 15/0065 (2013.01); A61M 15/025 (2013.01); B01F 3/0446 (2013.01); B01F 5/04 (2013.01); B05B 7/0475 (2013.01); B05B 7/061 (2013.01); B05B 7/065 (2013.01); B05B 7/066 (2013.01); B05B 7/0884 (2013.01); F02M 43/04 (2013.01); F02M 67/10 (2013.01); F02M 69/047 (2013.01); F02M 69/08 (2013.01); F23D 11/106 (2013.01); G01N 21/01 (2013.01); A61M 11/002 (2013.01); A61M 2202/064 (2013.01); B01J 2219/00378 (2013.01); B05B 1/02 (2013.01); C40B 60/14 (2013.01); G01N 2015/1406 (2013.01); G01N 2015/1409 (2013.01)

Citation (search report)

See references of WO 9931019A1

Designated contracting state (EPC)

DE ES FR GB

EPO simple patent family

WO 9931019 A1 19990624; AU 1572799 A 19990705; AU 745904 B2 20020411; CA 2315048 A1 19990624; EP 1037858 A1 20000927; JP 2002508250 A 20020319

INPADOC legal status

2003-02-19 [18R] REFUSED

- Ref Legal Event Code: 18R

- Effective date: 20020927

2002-03-13 [RTI1] TITLE (CORRECTION)

- Ref Legal Event Code: RTI1

- Free Format Text: METHOD OF FORMING BUBBLES OF GAS IN A LIQUID

2002-03-06 [RTI1] TITLE (CORRECTION)

- Ref Legal Event Code: RTI1

- Free Format Text: METHOD OF FORMING BUBBLES OF GAS IN A LIQUID

2001-02-28 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010111

2000-09-27 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000615

2000-09-27 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE ES FR GB