Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Repair – replacement – or improvement
Reexamination Certificate
2006-08-09
2009-08-25
Lagman, Frederick L (Department: 3672)
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Repair, replacement, or improvement
C405S156000, C138S097000
Reexamination Certificate
active
07578636
ABSTRACT:
A device and method for pipe replacement is shown. One advantage of devices and methods provided includes a splitting blade that provides a progressive cut into challenging pipe configurations such as ductile materials, thin walled pipes, corrugated pipes, or combinations of these properties. A pipe splitter and method is also shown that includes at least one hoop tensioning feature protruding from a body portion to pull the pipe against at least one splitting blade and increase splitting effectiveness.
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Lagman Frederick L
Schwegman Lundberg & Woessner, P.A.
TT Technologies, Inc.
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