Pipe joints or couplings – With casing – lining or protector
Patent
1999-02-05
2000-09-26
Nicholson, Eric K.
Pipe joints or couplings
With casing, lining or protector
285192, 2851392, F16L 1112
Patent
active
06123365&
ABSTRACT:
A shield positioned on the exterior of a sump to provide an access space for displacement of a portion of an entry fitting into the access space. The shield can allow for the removal of the entry fitting or an entry fitting seal without having to first remove backfill from the exterior of the sump.
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Delaware Capital Formation Inc.
Nicholson Eric K.
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