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| Number | Title | Issue Date |
| 7779771 | Method for breaking ice, motor-driven watercraft and its use Ice is broken with a motor-driven watercraft with three hulls, i.e. a trimaran (4), having a middle hull (3), a propulsion device (9), a right (1) and a left (2) side hull and a deck (5). The three hulls are attached. Ice is... | 08/24/2010 |
| 7712424 | Multi-hull vessel adapted for ice-breaking A multi-hulled vessel for upward ice-breaking is disclosed. The vessel has side hulls that are at least partially submerged while the vessel is underway. The side hulls each have a ridge on their upper surface. To break through ice at sea, the side hulls are positio... | 05/11/2010 |
| 7681511 | System for loading and unloading of hydrocarbons in ice prone waters System for loading and unloading of hydrocarbons in waters with varying conditions, comprising an icebreaking vessel (10) moored to a sea bed (12) by a turret buoy (11) and where a tanker (16) by at least one hawser (17) is moored ... | 03/23/2010 |
| 7313963 | Isothermal de-iced sensor Temperature and pressure sensors are protected from ice buildup by a in heat exchange relationship with a probe surrounding the sensors. ... | 01/01/2008 |
| 7290992 | Suspension device for an electric pump The present invention provides a suspension device for an electric pump of an assembly for drawing fuel in a motor vehicle, the device comprising: an outer support suitable for surrounding the electric pump, centered on an axis parallel to the axis of the electric p... | 11/06/2007 |
| 7281480 | Frictionally reduced hull A frictionally reduced hull is provided for a marine vessel, the hull having a water line, a bow end and an aft end. The hull has a first opening below the water line and a second opening below the water line. The first opening is closer than the second opening to t... | 10/16/2007 |
| 7270066 | Ice breaker (variants), method and system for single-support mooring and servicing ships To ensure the possibility of offshore shipping of a liquid medium, primarily oil, from an onshore tank farm into sea-going tankers in the winter time in the ice conditions by ensuring both mooring to an offshore terminal and single-point mooring of a tanker at any t... | 09/18/2007 |
| 7241192 | Hybrid ship propulsion system A hybrid propulsion system includes a main diesel engine for driving the marine turbine and an electric motor. The electric motor has a nominal output that constitutes at least 20% of the nominal output of the main diesel engine. The electric motor remains continuou... | 07/10/2007 |
| 7150434 | Vehicle wake vortex modifier Wake vortices are made less detectable or reduced in their effect on nearby vehicles by re-orientation of vorticity about an axis in the direction of vehicle motion to transverse vorticity interacting with the longitudinal vorticity. The re-orientation may be by a f... | 12/19/2006 |
| 7150239 | Method for aerating bodies of water A body of water is aerated by propelling in the body of water a water pumping arrangement including a sheath having a turning propeller that (a) sucks water from the body into the sheath interior via openings in the sheath, (b) forces the sucked water upwardly and (... | 12/19/2006 |
| 7115007 | Stern unit for marine craft A stern unit of marine craft that comprises a casing, a propeller, a propeller shaft, and at least one rudder actuated by hydraulic pistons is described. The casing is open at the bottom, with its bottom surface having a parabolic shape in cross-section. The casing ... | 10/03/2006 |
| 7104209 | Hybridhull boat system A hull is formed of a forward section, a rearward section and intermediate sections there between. The forward section is in a generally triangular configuration. The forward section has a forward-most point. The forward section has rearwardly extending sides. The r... | 09/12/2006 |
| 7000554 | Frictionally reduced hull A frictionally reduced hull is provided for a marine vessel, the hull having a water line, a bow end and an aft end. The hull has a first opening below the water line and a second opening below the water line. The first opening is closer than the second opening to t... | 02/21/2006 |
| 6062925 | Service vessel operating method A service vessel that is designed for navigating both in the open sea and in ice conditions is provided with a demountable propeller nozzle. For an ice-free navigation period the propeller nozzle is mounted around the propulsion propeller of the vessel, w... | 05/16/2000 |
| 5996520 | Icebreaking method and icebreaker A relatively wide vessel is assisted through an ice field by an icebreaker having a relatively narrow hull. The icebreaker includes two steerable propulsion mechanisms at the opposite ends respectively of the hull, and the propulsion mechanisms are used t... | 12/07/1999 |
| 5660131 | Icebreaker attachment A self-powered icebreaker attachment for connection to a parent vessel. In the preferred embodiment, the icebreaker attachment includes a spoon-shaped bow, an ice knife positioned aft of the bow, and a propulsion system including fully rotatable Z-drives.... | 08/26/1997 |
| 5567078 | Method for forming a sloped face ice control structure The present invention pertains to sloped-faced, ice control elements that are each spaced apart across a riverbed adjacent to a floodplain region. The elements arrest a breakup ice run. The size and spacing of the ice-resisting elements can vary with rive... | 10/22/1996 |
| 5325803 | Icebreaking ship For icebraking ships whose forward quarter is designed like a pontoon with an underside rising obliquely forward, and having icebreaking configurations on its sides, the hull can be equipped on both sides over the entire length of the ship with balcony-li... | 07/05/1994 |
| 5231944 | Icebreaking ship An icebreaking ship is equipped, on the forward quarter of the hull, on both side flanks in the vicinity of the water line, with first and second icebreaking structures, with the second icebreaking structure located at some distance behind the first. Betw... | 08/03/1993 |
| 5218917 | Icebreaking ship An icebreaking ship has a hull including a forward part and an aft part and a screw arrangement in the aft part of the ship. The screw arrangement is designed for propulsion of the ship in the forward direction and is turnable substantially in a horizonta... | 06/15/1993 |
| 5176092 | Icebreaker bow and hull form An icebreaker ship has a V-shaped bow and an S-shaped stem line with a wedge extending from the bottom of the stem line below the design waterline of the ship towards the sides until maximum width is reached. The wedge is incorporated into the hull by mea... | 01/05/1993 |
| 5161477 | Ice going ship A ship's hull designed for traffic in icy waters has a general form defining a bottom that is substantially horizontal in longitudinal section and has a central longitudinal keel line, and, at both sides of the bottom, sides that extend upward from the bo... | 11/10/1992 |
| 5038695 | Icebreaker For improving the headway and sternway icebreaking characteristics, the hull of a ship has the greatest width of the icebreaking waterline in the forebody and has trimming and ballasting in the stern area, whose part located above the icebreaking waterlin... | 08/13/1991 |
| 5036781 | Method and the means for removing ice from a ship's channel The method and the apparatus for removing ice from a ship's channel or from around the ship, to ease its navigation. The invention is characterized in that the propeller stream is used for removing the ice by turning the propeller stream up to the surface... | 08/06/1991 |
| 4942837 | Ice breaker An icebreaker hull having laterally projecting hull components which define inclined upwardly and rearwardly sloped faces arranged in part above and in part below the vessels normal water line, and each hull component further including a longitudinally ex... | 07/24/1990 |
| 4864950 | Icebreaker For reducing the adhesive and frictional forces of snow and ice acting on the outer hull plating of an icebreaker and in particular static frictional forces when the ship becomes stuck in the ice, use is made of heating sources present and available in th... | 09/12/1989 |
| 4860679 | Ice breaker vessel An ice breaker vessel and a method for increasing maneuverability and protecting the propellers against broken ice when going backwards. The ice breaker has two stern propellers and a steering rudder aligned with each propeller shaft. Each of the rudders ... | 08/29/1989 |
| 4800831 | Ice breaker Broken ice floes move laterally by the prow of an ice breaker into a position below the unbroken ice cover laterally limit the fairway channel formed and surround the stern of the ship, so that as a result of the increased water speed produced by the prop... | 01/31/1989 |
| 4781135 | Ship hull A ship hull has a general frame form defining a bottom surface and two side surfaces. The bottom surface of the hull has a horizontal bottom section that extends longitudinally of the hull midway between the two side surfaces of the hull, and the bottom s... | 11/01/1988 |
| 4732101 | Stern apron for ice breakers The stern apron is constructed as a volume body tapering to a sharp end in streamlined manner towards the stern of the ship and which at its lower outer edges is in each case wider than in the overlying region, so that the ship's resistance and the necess... | 03/22/1988 |
| 4715305 | Ship's hull A ship's hull has a general frame form defining a bottom surface and two side surfaces. The bottom section of the hull comprises a substantially vertical wedge-formed portion, which extends vertically downwards in the region of the lowest part of the bow ... | 12/29/1987 |
| 4702187 | Bottom construction for a ship The invention relates to a ship that is adapted for operating in ice-filled waters and has a general frame form defining a substantially horizontal bottom surface, two side surfaces, a stern and a blow portion that breaks the ice advantageously. The botto... | 10/27/1987 |
| 4666341 | Mobile sea barge and plateform A mobile sea barge having a unitary lower hull which has sufficient buoyancy to float the entire barge, an upper hull spaced from the lower hull by a single, centrally-positioned, vertical member, and a movable stabilizing hull arranged about the central ... | 05/19/1987 |
| 4648342 | Arrangement in vessels A vessel with a ballast system including a plurality of ballast tanks provided with means for feeding water into the tanks and expelling water therefrom and an air bubbling system including underwater openings and means for blowing air through said openin... | 03/10/1987 |
| 4644889 | Sailboat keel A sailboat keel structure, wherein the keel has an elongated body with fore and aft edges, and a generally elliptical cross-section. An elongated slotted opening is formed along the aft edge between the upper and lower ends of the keel, with the opening e... | 02/24/1987 |
| 4643121 | Method of adding propulsive force to ice breaker A method of adding propulsive force to an ice breaker in the process of breaking ice in a frozen sea by utilizing the strong tractive force of a winch, in which a pile is first inserted in the ice, and then, a cable connected with the pile is wound up by ... | 02/17/1987 |
| 4636607 | Method of enhancing an ice-breaking operation In order to perform an ice-breaking operation more readily or with a defined geometry, an ice breaking aid is employed by virtue of which the ice is irradiated with high-frequency oscillations such as phonons or photons prior to the ice-breaking operation... | 01/13/1987 |
| 4597350 | Mooring system and liquid cargo transfer facility for ice infested waters A mooring and liquid transfer column which is fixed to the floor of an offshore body of water for securing a marine vessel. The column is resiliently retained and cable supported to permit its being deflected in response to ice forces acting thereagainst.... | 07/01/1986 |
| 4596291 | Floating drilling platform A floating semisubmersible off-shore drilling platform or the like comprises an upper working level portion and a lower pontoon portion. When the platform is transported from one place to another, it floats on the pontoon portion, but when it is working a... | 06/24/1986 |
| 4578000 | Method of protection A method for protecting stationary constructions, located in water and surrounded by water, against strain caused by a moving ice field in said water. A protective structure is arranged around said stationary construction. Said protective structure has a ... | 03/25/1986 |
