Global Patent Index - EP 0786311 B1

EP 0786311 B1 2000-06-14 - Process and apparatus for surface treatment, in particular for cleaning surfaces with CO2-dry ice granulate

Title (en)

Process and apparatus for surface treatment, in particular for cleaning surfaces with CO2-dry ice granulate

Title (de)

Verfahren zur Oberflächenbehandlung, insbesondere Reinigung von Oberflächen mit CO2-Trockeneisgranulat und eine Vorrichtung zur Durchführung dieses Verfahrens

Title (fr)

Procédé et appareil de traitement de surfaces, en particulier pour le nettoyage des surfaces avec de la glace carbonique sèche en granules

Publication

EP 0786311 B1 (DE)

Application

EP 96111531 A

Priority

  • DE 19540458 A
  • DE 19544906 A
  • DE 19624652 A

Abstract (en)

[origin: EP0786311A1] The surface cleaning process uses carbon dioxide dry ice granulate (2), which is passed through a hose (6) and a jet gun (11) on the end. The gun is subjected to negative pressure to suck the granulate from a store (3). A separate air pressure line is used to spray the dry ice granulate onto the surface being treated. A jet pressure regulator is used to regulate the impact intensity of the dry ice granulate. It provides a pressure range of 3 to 20 bars. The jet pressure can be regulated by altering the air input forming the pressure.

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

B24C 1/00; B24C 7/00

IPC 8 full level (invention and additional information)

B24C 5/02 (2006.01); B24C 7/00 (2006.01)

CPC (invention and additional information)

B24C 7/0069 (2013.01); B24C 5/02 (2013.01); B24C 7/0053 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE

EPO simple patent family

EP 0786311 A1 19970730; EP 0786311 B1 20000614; AT 193853 T 20000615

INPADOC legal status


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