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Class Information
Number: 114/42
Name: Ships > Ice breakers > Cutters
Description: Ice-breakers having saws or cutters for disrupting the ice, usually actuated by means independent of the speed of the boat or not due to the momentum of the vessel.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4942837 |
Ice breaker |
Jul. 24, 1990 |
| 4826353 |
Protection of marine installation from moving ice |
May. 2, 1989 |
| 4718871 |
Aquatic growth cutter |
Jan. 12, 1988 |
| 4636607 |
Method of enhancing an ice-breaking operation |
Jan. 13, 1987 |
| 4615645 |
Pipeline trenching |
Oct. 7, 1986 |
| 4523876 |
Ice slot maintenance |
Jun. 18, 1985 |
| 4436046 |
Ice-breaking hull |
Mar. 13, 1984 |
| 4429653 |
Means employing hydro-jets for facilitating the clearing of disaggregated ice chunks from the cutting region |
Feb. 7, 1984 |
| 4422399 |
Means for increasing the efficiency of an ice disaggregation system |
Dec. 27, 1983 |
| 4365571 |
Ice disaggregation system |
Dec. 28, 1982 |
| 4350114 |
Semi-submersible tanker with directional ice cutters |
Sep. 21, 1982 |
| 4348059 |
Multiple-tine ice disaggregation system |
Sep. 7, 1982 |
| 4294183 |
Cutter configuration for efficient ice disaggregation and clearing |
Oct. 13, 1981 |
| 4276845 |
Ice cutting and breaking vessel |
Jul. 7, 1981 |
| 4230423 |
Ice-breaking apparatus for structure for use in icy waters |
Oct. 28, 1980 |
| 4198917 |
Ice-breaking means for ships |
Apr. 22, 1980 |
| 4170187 |
Arctic drilling and production platform |
Oct. 9, 1979 |
| 4152999 |
Ice-breaking apparatus for ships and barges for operation on icy waters |
May. 8, 1979 |
| 4137986 |
Captured air bubble arctic vehicle with ice cutters |
Feb. 6, 1979 |
| 4102288 |
Operations vessel for ice covered seas |
Jul. 25, 1978 |
| 4077225 |
Apparatus for ice disaggregation |
Mar. 7, 1978 |
| 4070062 |
Method of and apparatus for disaggregating particulate matter |
Jan. 24, 1978 |
| 4069783 |
Method of and apparatus for disaggregating particulate matter |
Jan. 24, 1978 |
| 4022142 |
Ice cutter having injection of low density fluid |
May. 10, 1977 |
| 4005666 |
Fluid vacuum release for ice cutting systems |
Feb. 1, 1977 |
| 3973509 |
Icebreaker vessel |
Aug. 10, 1976 |
| 3965835 |
Arctic transport and marine operation system |
Jun. 29, 1976 |
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