Process and means for welding corrugated tubes and/or compound tubes and weld connection produced thereby
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 30, 1998
Grant Date -
N/A
app pub date -
Nov 28, 1995
filing date -
Nov 28, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a process for the connecting of plastic tubes the wall of which has a corrugated cross section by electro-thermal welding, filling cores of plastic are inserted in the corrugation troughs of the tubes to be connected on both sides of a welding joint in order to form a resting surface on the outer circumference of the tubes and an electric heating mat which surrounds the resting surface of all filling cores is placed on the resting surface.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully