Piping
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jan 11, 2000
Issued Date -
N/A
app pub date -
Nov 24, 1997
filing date -
May 24, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In order to improve a piping comprising at least one pipe and reinforcement on the outer wall of each pipe in such a way as to increase the maximum permissible internal operating pressure, it is proposed that the reinforcement should be capable of expansion along the length of the pipe and capable of contracting radially in such a way that a bias pressure can be applied to the pipe around its circumference by the longitudinal expansion of the reinforcement.
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