PORTABLE COFFER DAM AND METHOD OF MAKING
A portable coffer dam consisting of a plurality of rings, each ring consisting of a plurality of sections, each section comprising a pair of side plates spaced by trusses, end plates, attaching means, plastic foam filling between the plates, ballast and a compressed air flotation element in the plas...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
16.01.1973
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Subjects | |
Online Access | Get full text |
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Summary: | A portable coffer dam consisting of a plurality of rings, each ring consisting of a plurality of sections, each section comprising a pair of side plates spaced by trusses, end plates, attaching means, plastic foam filling between the plates, ballast and a compressed air flotation element in the plastic foam, with exhaust and recompressing means on the flotation element, together with sealing means between the sections and rings. |
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Bibliography: | Application Number: USD3710579 |