FIELD: exploitation of water conduit and sewerage in municipal engineering, industrial plants and building. SUBSTANCE: apparatus includes housing with inflated envelope inside it. Said envelope is inflated at cleaning tube and it is released when apparatus is introduced or removed. Inflated envelope pushes apart housing; at changing pressure inside envelope it is possible to adjust pressure effort of working organs on tube surface. Housing with working organs secured to it is in the form of flexible durable envelope; inflated envelope is flexible, non-stretched and it has fluid-tight coating. EFFECT: improved design. 1 dwg
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Authors
Dates
2002-05-20—Published
1999-04-21—Filed