Ships – Building – Canal and ferry boats
Patent
1977-02-28
1978-03-07
Gilliam, Paul R.
Ships
Building
Canal and ferry boats
61 1R, 114 42, 175 18, 299 24, E02B 1502, B63B 3512
Patent
active
040772250
ABSTRACT:
An ice cutter movably mounted on a marine structure for cutting encroaching ice floes or ice sheets. A cutter blade is mounted on the structure so that it may be conveniently moved into a position on the structure toward which the ice is moving. Acoustical energy is imparted to the cutter blade which in turn is positioned adjacent the encroaching ice and moved relative to the ice in a manner to cut out a path of unconsolidated ice so that the floe may pass the marine structure without applying destructive forces to the structure.
REFERENCES:
patent: RE28332 (1975-02-01), Schritzinger
patent: 3405527 (1968-10-01), Farr et al.
patent: 3672175 (1972-06-01), Mason
patent: 3696624 (1972-10-01), Bennett
Lichtenberger Gunter J.
Morgan George W.
Gilliam Paul R.
Grosz Alex
Hess J. Edward
Johnson Donald R.
Phillips James H.
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