Saint-gobain Vitrage

Saint Gobain Isover

Claude Bernard

Jean-Pierre Douche

Jean-Claude Coulon

David Le Bellac

Paul Delouche

A hydrophobic/oleophobic coating is formed on a substrate by a process, which comprises ionizing at least one precursor during deposition on the substrate, while during deposition the substrate temperature decreases from a temperature above 80&deg; C. to a temperature below 80&deg; C.

Transparent substrate provided with hydrophobic/oleophobic coating formed by plasma CVD

The invention is in a pneumatic powder ejector comprising a suction stage and an injection stage. The suction stage includes a suction chamber (16), a venturi (14) communicating a primary gas to the suction chamber and a lateral suction input (18) offset in relation to the downstream end of the venturi. The injection stage includes a nozzle (22), an injection chamber (36) and a diffuser (38). The stages are located within a coaxially of the body of a tubular ejector. The nozzle includes a path for powder and primary gas between the suction chamber and diffuser, and is formed to provide a flow path of reduced dimension to communicate a secondary or entrainment gas between the diffuser and injection station.

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Annet sur Marne, France

Claude Bernard