Patents
Patents for B63H 23 - Transmitting power from propulsion power plant to propulsive elements (3,809)
01/1992
01/14/1992US5080032 Monohull fast sealift or semi-planing monohull ship
01/08/1992EP0465446A1 Lock nut device
01/07/1992US5078628 Marine propulsor
01/03/1992CA2046011A1 Lock nut device
12/1991
12/31/1991US5076113 Shifting device for marine propulsion unit
12/27/1991EP0462685A1 Ship propulsion with trolling device
12/26/1991WO1991019644A1 An arrangement in connection with a swingable turn-up inboard/outboard stern aggregate for a craft
12/26/1991WO1991019643A1 Marine drive system with belt drive
12/18/1991EP0461190A1 Hydrofoil propulsion system.
12/17/1991US5072629 Shift assisting system
12/11/1991CN1056926A Sealing device for rotating shaft, particuturly suitable for shaft-tube sealing for marine propeller shaft
12/10/1991US5071376 Apparatus for emergency enablement of a disabled boat propeller
12/05/1991DE4017301A1 Electric propulsion drive for floating air-bed mattress - has battery-operated electric motor rotating paddle wheels on opposite sides of mattress
12/04/1991CN2089913U Tyre of tyre clutch
11/1991
11/19/1991US5066255 Drive arrangement for a planing boat
11/19/1991CA2040388A1 Bevel gear assembly
11/15/1991CA2041967A1 Releasable roller clutch reversing transmission
10/1991
10/22/1991US5059144 Ahead/astern shifting device for marine propulsion unit
10/17/1991CA2037435A1 Marine propulsion device
10/16/1991CN2086722U Chain gear box for small-size ships
10/10/1991CA2036931A1 Shiftable reversing transmission for marine propulsion device
10/09/1991EP0450507A1 Device for regulating the inclination angle of a surface propeller shaft line as to the water plane
10/01/1991US5052959 Marine propulsion device bearing arrangement
09/1991
09/24/1991US5051102 Astern-ahead switching device for marine propulsion unit
09/24/1991US5050461 Assist device for shift operation of marine propulsion system
09/17/1991US5049034 Propeller hub assembly
09/10/1991CA1288642C Marine drive lower unit with sequentially loaded multiple thrust bearings
07/1991
07/30/1991US5035664 Marine propulsion device gear arrangement
07/30/1991US5035663 Marine propulsion device retention mechanism
07/23/1991US5033983 Marine propulsion device shift linkage
07/23/1991US5033871 Extrudable multi-rigidity hydrodynamic bearing and method of making the same
07/16/1991US5031741 Synchronous coupling with locking means
07/09/1991US5030150 Splash guard assembly
07/09/1991US5030149 Power transmission arrangement for contra-rotating propeller shafts
06/1991
06/18/1991US5024639 "Z" type steerable balanced power transmission
06/14/1991WO1991008946A1 Method and apparatus for power transmission to a surface driving propeller mechanism and use of a turbine between the driving engine and propeller mechanism
06/11/1991US5022876 Transmission means
06/11/1991US5022875 Marine propeller locking tab washer
05/1991
05/28/1991US5018999 Propeller driving device of marine propulsion unit
05/28/1991US5018996 Flow control fluid coupling marine transmission
05/02/1991WO1991005695A1 Monohull fast sealift or semi-planing monohull ship
05/02/1991DE3935754A1 Drive for mobile offshore installation - has ducted impeller with integral rotor inside shaped duct
04/1991
04/09/1991US5006085 Marine propulsion device with removable clutch assembly
04/09/1991US5006084 Shift device for marine propulsion
04/09/1991CA1282816C Propeller shaft bearing arrangement
04/02/1991US5004962 Automatic motor synchronizer
03/1991
03/28/1991DE3930686A1 Cathodic protection of ship parts - with sacrificial anode held in cage clamped between parts to avoid loosening of anode and possible disconnection
03/27/1991EP0418599A1 Power transmission arrangement for contra-rotating propeller shafts
03/27/1991CN1050228A Device for corrosion protection of shaft-tube seal
03/19/1991US5000708 Propeller driving system for marine propulsion unit
02/1991
02/27/1991CN1049533A Cathodic protecting device for inhibiting corrossion of metal surface, preferable, sealing unit of shaft tube of ship, in liquid electrolyte, preferable in seawater
02/20/1991CN1011731B Safety device of seal construction for shaft particularly adapted for shaft-tube of ship's propulsion system
02/19/1991US4993848 Thrust bearing system for counter-rotating propeller shafts, particularly ships propeller shafts
02/19/1991US4993151 Method of making an easily removed marine propeller
02/12/1991US4992066 Marine motor transmission
02/07/1991DE3925414A1 Ship propulsion system - uses variety of gear reduction systems to reduce rotational speed of propellers to increase energy efficiency by reducing turbulence
02/05/1991US4990112 Power transmitting device for marine propulsion unit
01/1991
01/31/1991DE3924270A1 Seal for marine vessel stern bush seals - consists of two sealing rings with grooves and annular chamber
01/22/1991US4986783 Outboard motor power takeoff
01/22/1991US4986775 Propeller shaft bidirectional thrust bearing system
01/22/1991US4986774 Desmodromic shift adaptor for a counter-rotating propeller shaft assembly
01/16/1991EP0407630A1 Propulsion for hydrofoils
01/16/1991EP0407424A1 Marine drive lower unit with thrust bearing rotation control
01/15/1991US4984811 Pressure control system for stern tube seals
01/09/1991CN1011159B Sealing for shaft, particularly suitable for shaft seal assembly for shaft lute of ship
12/1990
12/27/1990EP0403513A1 Marine drive lower unit with sequentially loaded multiple thrust bearings
12/26/1990CN2068081U Gear box for ship
12/20/1990DE3919270A1 Resilient mounting for ship's propeller shaft - incorporates of housing filled with synthetic resin
12/12/1990CN1010797B Sealing structure for propeller shaft in ship
12/06/1990DE3917581A1 Vibration redn. for drive shaft - has oil chambers around shaft circumference impinged with oil pressure
11/1990
11/27/1990US4973274 Shift assisting device
11/20/1990US4971585 Marine propulsion device seal arrangement
11/14/1990CN2065602U Gear box for ship
11/13/1990US4969370 Bearing structure for intermediate transmission shaft in vessel propulsion machine
10/1990
10/16/1990US4962718 Hydrofoil propulsion system
10/03/1990EP0389979A2 Z-type stearable balanced power transmission
09/1990
09/08/1990WO1990010572A1 Hydrofoil propulsion system
09/08/1990CA2047716A1 Hydrofoil propulsion system
09/04/1990CA1273532A1 Line cutting device
08/1990
08/14/1990US4948384 Marine propulsion device anode arrangement
08/08/1990EP0380539A1 Improved retractable propulsor for boats
08/07/1990US4946410 Marine propulsion device with improved oil seal protection device
08/01/1990CN2059907U Spheric reversing tail shaft
07/1990
07/24/1990CA1271946A1 Marine propulsion device hydraulic system
07/10/1990US4940436 Marine drive system with inboard mounted engine and depending drive unit
07/03/1990US4938724 Line cutting device
07/03/1990US4938723 Fabricated elastic coupling for use in inboard/outboard engine
06/1990
06/27/1990EP0374363A1 Lockable synchronous clutch
06/26/1990US4936593 Shaft seal
06/12/1990US4932907 Chain driven marine propulsion system with steerable gearcase and dual counterrotating propellers
06/12/1990US4932795 Electrically conductive plastic bushings for marine propulsion devices
05/1990
05/29/1990US4929204 Water entry preventing structure for inboard/outboard motor
05/29/1990US4929203 Marine propeller drive system
05/16/1990CN1042222A Extrudable multi-durometer hydrodynamic bearing and method of making the same
05/15/1990US4925413 Stern drive marine propulsion system including a chain drive mechanism
05/15/1990US4925409 Torsional damper for marine drive unit
05/15/1990US4925369 Easily removed marine propeller
05/08/1990US4923417 Propeller housing retainer for marine propulsion device
05/02/1990EP0365761A1 Multi-hardness hydrodynamic bearing and method of making the same including extrusion
05/02/1990EP0281565B1 Line cutting device for mounting around a propeller shaft
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