Installation in which an operation is performed requiring over the atmosphere inside a chamber

US6458330B1 · kind B1 · utility

Assignee

• L'Air Liquide, Société Anonyme à Directoire et Conseil de Surveillance pour l'Étude et l'Exploitation des Procédés Georges Claude · FR

Inventors

• Panayotis Cocolios · Rambouillet, FR
• François Coeuret · Guyancourt, FR
• Wolfgang Döring · Hamburg, DE
• Franck Forster · Hamburg, DE
• Jean-Louis Gelot · Paris, FR
• Bernd Martens · Uetersen, DE
• Stephane Melen · Saint-Dié-des-Vosges, FR
• Eckhard Prinz · Schwarzenbek, DE
• Jean-Yves Thonnelier · Voisins-le-Bretonneux, FR
• Alain Villermet · Viroflay, FR

Key dates

• Filing date: Dec 18, 2000
• Grant date: Oct 1, 2002
• Expiry date: Dec 18, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G05D7/0676
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Optimization of an installation in which an operation is performed that requires control over the atmosphere inside a chamber (3), the operation being performed in the presence of a gaseous mixture capable of giving off emissions, the optimization being obtained by the presence of inlet (5) and outlet (8) devices external to the chamber to oppose the ingress of air into the chamber and the exit of gaseous emissions; and of an extraction device (4) comprising means (42) for regulating the flow rate to maintain an approximately zero pressure differential between the inside and the outside of the chamber.