Device for pushing a tube of plastics material for internally casing a metal piping to be renovated
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United States of America Patent
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-
Nov 24, 1998
Grant Date -
N/A
app pub date -
Mar 14, 1997
filing date -
Sep 8, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pushing device which includes a frame supporting at least one powered train of wheels the drive surface of which is made from rubber for driving a plastics tubing through friction and for imparting thereto a continuous motion inside of a metal piping to be renovated, the invention being applicable to the renovation of systems of fluid-conveying buried metal pipings.
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