Title (en)

Gas inlet orifice monitoring.

Title (de)

Verfahren zum Überwachen einer Gaseinlassöffnung.

Title (fr)

Procédé pour commander un passage d'amenée de gaz.

Publication

EP 0045658 A1 19820210 (EN)

Application

EP 81303556 A 19810804

Priority

GB 8025717 A 19800806

Abstract (en)

The invention provides a method of monitoring the operation of a gas inlet orifice below the surface of a liquid under the action of positive gas pressure and with the formation of bubbles at the orifice, comprising the steps of collecting signals indicative of the pressure of the gas flowing through the orifice; removing from such signals the components thereof indicative of the mean pressure of said gas; and monitoring from the remaining components of such signals the pressure fluctuations thereby detected and caused by the formation of gas bubbles at the orifice.

IPC 1-7

C21C 5/30

IPC 8 full level

C21C 5/30 (2006.01); C21C 5/34 (2006.01)

CPC (source: EP)

C21C 5/30 (2013.01); C21C 5/34 (2013.01)

Citation (search report)

• GB 2003591 A 19790314 - BRITISH STEEL CORP
• [A] GB 1356225 A 19740612 - ALLEGHENY LUDLUM IND INC
• [A] GB 1447642 A 19760825 - USS ENG & CONSULT
• [A] GB 1253581 A 19711117 - MAXIMILIANSHUETTE EISENWERK [DE]
• [A] DE 2326754 B2 19770818
• [A] PATENT ABSTRACTS OF JAPAN Vol. 1, No. 132, 31 October 1977, page 5960E77 & JP-A-52 066 466

Designated contracting state (EPC)

BE DE NL SE

DOCDB simple family (publication)

EP 0045658 A1 19820210; GB 2081911 A 19820224

DOCDB simple family (application)

EP 81303556 A 19810804; GB 8123973 A 19810805