DEVICE FOR VACUUM-TIGHT SEALING INTERIOR OF MAIN PIPELINES Russian patent published in 2009 - IPC F16L55/16 

Abstract RU 2362938 C2

FIELD: construction.

SUBSTANCE: invention relates to pipeline construction and can be used in cleaning and depositing protective coating on the inner surface of pipes. Air-tight disc-shaped metal membranes with annular seals and packing rings are provided with axial supports for loading packing rings, actuators for tightening the disc-shaped metal membranes, which form two adjacent air-free volumes, one for plasma cleaning device, and the other - for multicomponent magnetron evaporator. The device is provided with systems for discharging working gases into the cleaning zone and zone for depositing coating and is made with possibility of creating a vacuum in the given compartments.

EFFECT: wider range of equipment.

2 dwg

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RU 2 362 938 C2

Authors

Deulin Evgenij Alekseevich

Mashurov Sergej Sehmovich

Konovalov Pavel Igorevich

Dates

2009-07-27Published

2005-12-26Filed