Duct system for profiled post-tension construction

Static structures (e.g. – buildings) – Elongated rigid structure – Made up of longitudinally arranged strip-like sections

Reexamination Certificate

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Details

C052S223300, C052S223100, C405S259100

Reexamination Certificate

active

07621103

ABSTRACT:
A duct system for profiled post-tendon construction has a first duct, a second duct and a third duct joined together in end-to-end relationship. The first and third ducts are of one type of polymeric material. The second duct is of a different type of polymeric material. The second duct has a parabolic curvature while the first and third ducts are generally straight. The second duct has a cross-sectional configuration that is identical to the cross-sectional configuration of the first and third ducts.

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