Patents for B63H 1 - Propulsive elements directly acting on water (4,187) |
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10/30/1980 | WO1980002270A1 Nautical propulsor device |
10/28/1980 | US4230648 Rotor adapted to rotate about a rotary shaft |
09/30/1980 | US4225286 Thrust generating device |
08/19/1980 | US4218185 Flexible fluid conduit for propeller shaft |
08/12/1980 | CA1083432A1 Device for propelling ships |
08/06/1980 | EP0013929A1 Apparatus for increasing the rearwardly propulsive forces of a marine motor comprising a reverse drive |
07/29/1980 | US4214547 Rider propelled boat |
07/29/1980 | CA1082534A1 Feathering propeller especially for sailing boats |
07/22/1980 | CA1082052A1 Flexible fluid conduit for propeller shaft |
07/15/1980 | US4212586 Turboexhaust hub extension for a marine propeller |
07/08/1980 | US4211515 Marine propeller fish line and weed cutter |
06/24/1980 | CA1080048A1 Propeller fastening |
06/17/1980 | CA1079582A1 Boat propeller hub |
06/10/1980 | US4207028 Extendable and retractable propeller for watercraft |
05/28/1980 | EP0011552A1 Marine propeller with foldable blades |
05/27/1980 | US4204806 Folding propeller |
03/19/1980 | EP0008590A1 Turbo-machine |
03/04/1980 | US4191485 Apparatus for securing a wheel to a rotatable shaft of a turbo-machine |
02/19/1980 | US4188906 Supercavitating propeller with air ventilation |
02/05/1980 | CA1071031A1 Apparatus for manufacture of ship's propellers |
12/25/1979 | US4180368 Marine propeller fish line and weed cutter |
12/25/1979 | CA1068737A Wing to swim or row |
12/11/1979 | US4178128 Method of and device for propulsion |
12/04/1979 | CA1067353A1 Marine propulsion device having increased reverse thrust |
10/30/1979 | US4172427 Water propulsion unit including fin having foil and flexible ends |
10/23/1979 | US4171675 Centrifugal pump and paddle boat propulsion system |
04/24/1979 | US4150921 Built-up marine propellers with adjustable pitch and axially removable blades |
04/24/1979 | US4150914 Propeller blades |
03/27/1979 | CA1051281A1 Propeller |
03/13/1979 | US4143536 Method of correcting rotational speed of screw propeller |
02/20/1979 | CA1048752A1 Device for mounting and dismantling of a submerged propeller unit |
02/13/1979 | CA1048350A1 Hydrofoil vessel |
01/23/1979 | US4135469 Method for reducing propeller noise |
12/19/1978 | US4130378 Side propellers for the propulsion of fast boats and aircraft |
12/12/1978 | US4129089 Marine propulsion apparatus |
12/05/1978 | US4128073 Water sports craft |
11/07/1978 | CA1041741A1 Device for mounting and dismantling of a submerged propeller unit |
09/26/1978 | US4116038 Apparatus for shaping sheet material |
07/25/1978 | US4102293 Device for propelling ships |
06/20/1978 | US4095919 Foldable propellers |
06/13/1978 | US4094614 Propeller |
04/25/1978 | US4086025 Propellers with retractable blades |
04/18/1978 | US4084537 Flank drive for planing hull and displacement craft |
03/21/1978 | US4080099 Propeller |
02/14/1978 | US4073601 Marine propeller |
02/07/1978 | US4072124 Nautical vehicle |
01/31/1978 | US4070982 Cylinder-driven marine propulsion system |
01/17/1978 | US4068979 Marine propulsive device |
01/17/1978 | US4068610 Ski propulsion poles |
01/10/1978 | US4067116 Geometric pitch determining device |
01/03/1978 | US4066035 Apparatus for mounting and dismounting a submerged propeller unit for a floating body |
01/03/1978 | US4066034 Apparatus for mounting and dismounting a submerged propeller unit for a floating body |
12/06/1977 | US4061105 Sail to row |
12/06/1977 | US4061104 Hydrofoil vessel |
11/22/1977 | US4058880 Propeller making apparatus and method |
09/13/1977 | US4047841 Propeller blading for a self-adjusting propeller for boats |
09/13/1977 | US4047835 High efficiency propeller |
08/23/1977 | US4043291 Rowing and steering device for boats |
08/09/1977 | US4040136 Wing to swim |
07/19/1977 | US4036162 Marine propulsion device having increased reverse thrust |
05/10/1977 | US4022543 Apparatus for facilitating removal of a marine propeller blade |
04/12/1977 | US4016826 Water spider |
03/01/1977 | US4009874 Propeller making apparatus |
01/25/1977 | US4004544 Twin turbine-wheel driven boat |
01/18/1977 | US4003671 Method and means to prevent cavitation erosion in propeller ducts |
12/14/1976 | US3996877 Ship propeller arrangement |
12/14/1976 | US3996872 Hydrofoil vessel |
10/12/1976 | US3985091 Icebreaker vessel |
09/28/1976 | US3982853 Folding boat propeller |
09/21/1976 | US3981613 Foldable propellers |
09/21/1976 | US3981165 Outboard motor propeller lock system |
09/07/1976 | US3978814 Air nozzle controlled marine propulsion system |
08/03/1976 | US3972646 Propeller blade structures and methods particularly adapted for marine ducted reversible thrusters and the like for minimizing cavitation and related noise |
07/06/1976 | US3967574 Manually controlled sculling mechanism |
06/29/1976 | US3965846 Endless belt propulsion device for a high speed boat |
06/29/1976 | US3965843 Transporting apparatus |
05/04/1976 | US3954084 Counter-rotating marine propulsion system |
04/27/1976 | US3953024 Water tumbler and roller float |
04/27/1976 | US3952686 Shaft protecting and propeller mounting sheath |
04/13/1976 | US3949694 Special submarine devices using a novel integrated lift, propulsion and steering system |
03/30/1976 | US3947151 Hollow hub marine propeller with anticavitation groove |
03/23/1976 | US3945874 Method of assembling hubs, particularly propeller hubs for boat engines |
03/09/1976 | US3942372 Procedure for making tests of propeller cavitation |
03/02/1976 | US3941502 Screw propeller assemblies |
02/17/1976 | US3938463 Inclined raked partially submerged propellers |
02/03/1976 | US3936228 Boat Propeller |
01/27/1976 | US3934291 Water sports wheel |