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