Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Repair – replacement – or improvement
Reexamination Certificate
2005-07-20
2010-11-02
Lagman, Frederick L (Department: 3672)
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Repair, replacement, or improvement
C405S184100, C405S184000, C138S097000
Reexamination Certificate
active
07824130
ABSTRACT:
The invention relates to an apparatus and a method for joining a pipe conduit to a drilling device, expanding device or pull-in device, in which a pulling-force generator arranged in the drilling device, expanding device or pull-in device exerts a compressive force on a pipe conduit, to be pulled in, via a pulling means and an adapter and thereby holds the individual short pipes of the pipe conduit together and reduces the mechanical stress to which the short pipes are subjected.
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“Tiefbau Ingenieurbau Strassenbau” [Underground Construction Civil Engeering Road Construction], bau verlag, t i s, Jun. 2004, p. 36,37.
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Koch Elmar
Köper Martin
Day Ursula B.
Feiereisen Henry M.
Lagman Frederick L
Tracto-Technik GmbH
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