Pipe joints or couplings – Packed – Flanged pipe
Reexamination Certificate
2005-09-06
2005-09-06
Hewitt, James M. (Department: 3679)
Pipe joints or couplings
Packed
Flanged pipe
C285S365000, C285S406000, C285S407000, C285S408000, C285S903000
Reexamination Certificate
active
06938933
ABSTRACT:
Rigid corrugated plastic pipe sections are provided with a flange radially extending from at least one end of the pipe length, which allows structural and water tight joints between connecting flanged pipes and fittings to be formed in an assembly including a peripheral clamp and gasket, and a system, method and kit for effecting structural and water tight joints in corrugated plastic pipe pipes.
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Hewitt James M.
Porter Wright Morris & Arthur LLP
LandOfFree
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