Skirt construction

Details Skirt construction Skirt construction

1979-07-05

1982-05-11

Blix, Trygve M.

Ships

Building

Antifriction surfaces

114 40, 180127, B63B 134

Patent

active

043287603

ABSTRACT:
A skirt system is disclosed in combination with a barge floating on a body of water, the barge having a roof extending over the body of water, for providing a substantial ice-free zone around a barge out to at least a hundred feet from the barge. The skirt system includes (a) a first flexible external skirt, the first skirt being provided with a metallic lip extending parallel to the longitudinal axis of the first flexible external skirt and extending below the lower edge thereof, the first flexible external skirt being adapted to extend into the water; (b) a second flexible internal skirt adjacent the first skirt and spaced from and substantially parallel to the first skirt, the second skirt being slightly shorter than the first skirt whereby the second skirt is adapted to be spaced from the first external skirt when the first external skirt extends into the body of water; and (c) a hot air conduit defined by a compartment formed by the space between the parallel first skirt and (d) a mass of hot air filling the compartment thereby providing an enclosed heated area between the roof and the body of water, the skirt simultaneously providing an air/water seal between the mass of hot air and the water and the second skirt. The combination of the skirt with the above-described system provides a seal between the water/ice interface which will substantially prevent cold air from going under the roof, and yet is sufficient to allow some ice encroachment within the ice free zone around the barge which encroached ice soon is melted to maintain the ice free zone, so that no substantial forces are put on the barge.

REFERENCES:
patent: 3249166 (1966-05-01), Cockerell et al.
patent: 3524518 (1970-08-01), Favre
patent: 3749162 (1973-07-01), Anders
patent: 3808997 (1974-05-01), Bastian, Jr.
patent: 3929083 (1975-12-01), Blankenship et al.

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