Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...
Reexamination Certificate
2007-12-28
2010-11-30
Gay, Jennifer H (Department: 3672)
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
By means advancing along terrain and guiding pipe or cable...
C405S174000, C405S181000, C405S184000, C405S154100, C037S347000, C037S367000, C037S370000
Reexamination Certificate
active
07841802
ABSTRACT:
A strand-like material laying device for an appliance for laying any kind of strand-like material into the ground is disclosed. The strand-like material laying device is designed to lay a more rigid strand-like material such as steel pipes into the ground, and assures that the strand-like material to be laid can smoothly be fed into a trench formed in the ground without risking that a bending radius thereof falls below a minimum allowable bending radius which depends on the type of the strand-like material to be laid. The strand-like material laying device can also be immersed into the ground to form a subterranean trench while being moved in a longitudinal direction.
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Andrish Sean D
Fockersperger, Jr. Walter
Gay Jennifer H
Morrison & Foerster / LLP
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