Refrigeration – Structural installation – Geographic – e.g. – subterranean feature
Patent
1995-10-16
1997-08-26
Popovics, Robert J.
Refrigeration
Structural installation
Geographic, e.g., subterranean feature
37307, 37195, 210747, 210774, 405130, 405303, 165 45, F25D 2312
Patent
active
056600550
ABSTRACT:
A freezing cell having one or more freezing tines may be used to remove contaminated sediment from the beds of water bodies. The freezing tines are to be immersed into the sediment. Refrigerant is supplied to the tines by a refrigeration unit during the freezing cycle to solidify the surrounding sediment into a block held by the cell. The block of frozen sediment is lifted from the water body. The block is released from the freezing cell by heating the tines. The block is then transported for treatment. The freezing cell may be returned for reuse in sediment removal. The freezing cell may be configured to permit close placement of the cell to other like cells used in the extraction process. A method of freezing marine sediment into blocks is used to recover contaminants from water bodies.
REFERENCES:
patent: 367547 (1887-08-01), Poetsch
patent: 907441 (1908-12-01), Baur
patent: 944382 (1909-12-01), Ross
patent: 1704577 (1929-03-01), Pomykala
patent: 3614874 (1971-10-01), Martindale et al.
patent: 4671701 (1987-06-01), Elliott
patent: 4966493 (1990-10-01), Rebhan
"Great Lakes Clean Up Fund, Sediment Removal Program" by Environment Canada, dated Jun. 1994.
"Cleanup Fund, Contaminated Sediment Removal Program" by Environment Canada .
Livingston, Esq. Edward M.
Popovics Robert J.
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