Pipe joints or couplings – Repair
Reexamination Certificate
2005-08-17
2010-10-26
Bochna, David E (Department: 3679)
Pipe joints or couplings
Repair
C285S412000, C285S419000, C138S159000, C138S161000, C138S098000, C405S153000
Reexamination Certificate
active
07819435
ABSTRACT:
A rehabilitating pipe for repairing an existing pipe has pipe units that are mutually coupled in a longitudinal direction of the existing pipe. Each of the pipe units has segments that are mutually coupled in a circumferential direction of the existing pipe. Each of the segments has an inner-surface plate and an outer-wall plate extending vertically from and around an entire perimeter of the inner-surface plate. The outer-wall plate has lateral plates extending along a longitudinal direction of the inner-surface plate and end plates connected between the respective lateral plates. Connecting members couple the segments together in the circumferential direction to assemble the pipe unit. A restraining member is attached to and encircles an outer circumference of the assembled pipe unit to restrain the pipe unit.
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Fujii Kenji
Ishida Makoto
Kamiyama Takao
Kaneta Koji
Nakamura Yoichi
Adams & Wilks
Bochna David E
Shonan Gosei-Jushi Seisakusho K.K.
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