Method for welding pipe pieces made of thermoplastics
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United States of America Patent
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Feb 6, 1996
Grant Date -
N/A
app pub date -
Mar 2, 1994
filing date -
Mar 11, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method for connecting pipe pieces of corrugated pipes to form a pipe, which is to be used in particular as a protection pipe for communication cables or light wave guides, external pipe segments are formed by appropriate cutting in the vicinity of the external pipe portions, which external pipe segments are inserted into recesses of welding sleeves. These welding sleeves comprise an outer ring and an inner ring, the inner ring not projecting radially beyond the inner pipe portions into the pipe. At least one of the rings is welded with the external pipe segments.
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