ClassID:

71668

B63H23/321 - CPC Classification

Classification description:

Transmitting power from propulsion power plant to propulsive elements; Other parts Bearings or seals specially adapted for propeller shafts

Sub-classes:
Recent Application in this class:
#1
20260145770
2026-05-28

PROPELLER ASSEMBLY FOR A BOAT

#2
20260125144
2026-05-07

Shaft Seal

#3
20250382044
2025-12-18

BEARING FOR A PROPELLER SHAFT OF A SHIP, STERN TUBE BEARING ARRANGEMENT, PROPULSION ARRANGEMENT AND METHOD OF OPERATING A PROPULSION ARRANGEMENT

#4
20250353584
2025-11-20

SEALING ASSEMBLY AND RETRACTABLE THRUSTER SYSTEM THEREFOR

#5
20250346339
2025-11-13

PROPULSION UNIT

#6
20250346338
2025-11-13

SEAL RING, SHAFT SEAL ASSEMBLY, SHIP PROPELLER AND SHIP

#7
20250229884
2025-07-17

Method and Arrangement for Sealing a Propeller Shaft of a Marine Vessel

#8
20250042528
2025-02-06

A MARINE VESSEL PROPULSION DEVICE

#9
20250010965
2025-01-09

OR RELATING TO A MARINE PROPULSION SYSTEM

#10
20240243635
2024-07-18

DRIVE DEVICE FOR DRIVING A WATERCRAFT

#11
20240183449
2024-06-06

SHAFT SEALING DEVICE

#12
20240051651
2024-02-15

Marine propulsion system

#13
20230392694
2023-12-07

SYSTEM AND METHOD FOR MEASURING CONDITION OF RADIAL LIP SEAL ARRANGED CIRCUMFERENTIALLY OVER ROTATABLE AXLE

#14
20230242231
2023-08-03

Integrated Propulsion and Steering System

#15
20230234691
2023-07-27

COUNTER ROTATING PROPELLER POD MECHANICAL ARRANGEMENT

#16
20230174213
2023-06-08

Marine propulsion system

#17
20230119447
2023-04-20

Arrangement And Method For Sealing A Propeller Shaft Of A Marine Vessel

#18
20230117832
2023-04-20

Arrangement And Method For Sealing A Propeller Shaft Of A Marine Vessel

#19
20230067869
2023-03-02

PROPELLER ASSEMBLY FOR A BOAT

#20
20230029771
2023-02-02

Outboard motor

#21
20230002024
2023-01-05

Propulsion Unit for a Marine Vessel

#22
20220332403
2022-10-20

Shaft Seal

#23
20220315191
2022-10-06

Bearing device, for power transmission unit for an azimuth thruster

#24
20220274680
2022-09-01

Method and arrangement for sealing a propeller shaft located under water

#25
20220186837
2022-06-16

Marine slide ring seal arrangement

#26
20220177105
2022-06-09

COAXIAL CONTRA-ROTATING CIRCUMFERENTIAL THRUSTER

#27
20220089261
2022-03-24

Supporting Structure for an Outboard Engine

#28
20210371077
2021-12-02

Integral personal watercraft shaft sealing axial alignment systems

#29
20210371070
2021-12-02

Marine propulsion system

#30
20210316834
2021-10-14

Ship propulsion machine

#31
20210316832
2021-10-14

Propulsion unit

#32
20210284307
2021-09-16

Drive arrangement for driving a boat

#33
20210114705
2021-04-22

Drive for a boat with electric motor

#34
20210107613
2021-04-15

Vessel

#35
20210078688
2021-03-18

Boat shaft seal system

#36
20200332897
2020-10-22

Ring seal for implementing a rotary seal between two cylindrical elements

#37
20200324869
2020-10-15

Marine propulsion system

#38
20200086962
2020-03-19

Propeller drive assembly

#39
20200070944
2020-03-05

Strut mounted gear box for counter rotating propellers

#40
20190270501
2019-09-05

Outboard motor and damper for propeller unit

#41
20190011050
2019-01-10

Sea water seal without oil lubrication for pods

#42
20180178890
2018-06-28

Propulsion apparatus for ship

#43
20180162507
2018-06-14

Guiding arrangement for retractable thruster

#44
20180106380
2018-04-19

Sealing arrangement for an underwater mountable thruster of a marine vessel

#45
20180072395
2018-03-15

A VESSEL AND A METHOD IN A VESSEL WITH A HULL AND A PROPULSION UNIT

#46
20170313398
2017-11-02

PROTECTIVE DEVICE FOR THE SEALING OF A STERN TUBE OF PROPELLER-DRIVEN SHIPS

#47
20170305521
2017-10-26

Propulsion unit for an aquatic vehicle comprising a hydraulic fluid conditioning module and a conditioning control method

#48
20170284461
2017-10-05

Axial bearing and retainer

#49
20170259898
2017-09-14

Sealing system, method and watercraft

#50
20170210456
2017-07-27

TWO-PIECE AXLE BUSHING AND MARINE PROPELLER USING SAME

#51
20170138477
2017-05-18

Stern tube seal system

#52
20170081009
2017-03-23

METHOD AND ARRANGEMENT FOR CONTINUOUS ALIGNMENT OF A ROTATING SHAFT

#53
20170073055
2017-03-16

CENTRIFUGAL PROPULSION APPARATUS AND SHIP HAVING SAME

#54
20170043852
2017-02-16

Long shaft propeller controller and bearing seal protector

#55
20160194066
2016-07-07

Propulsion device for ship and ship comprising the same

#56
20160059950
2016-03-03

Seal arrangement in a vessel

#57
20150377547
2015-12-31

Refrigerator

#58
20150375833
2015-12-31

Easy maintenance flying board

#59
20150137458
2015-05-21

Stern tube sealing device

#60
20150076768
2015-03-19

Arrangement for sealing a propeller shaft of a marine vessel and a method of controlling the operation thereof

#61
20150071780
2015-03-12

Propulsion apparatus for ship and ship having the same

#62
20150054367
2015-02-26

Method of and a device for protecting a motor in a pod against shaft bending shocks

#63
20150030452
2015-01-29

Propulsion device for ship and ship having the same

#64
20150017848
2015-01-15

Multi-stage watertight chamber

#65
20140346738
2014-11-27

Seal apparatus for a ship propeller shaft and method of making the apparatus

#66
20140186184
2014-07-03

Watercraft propeller propulsion system having a hydraulic thrust bearing assembly

#67
20140048461
2014-02-20

Seal arrangement for a rotating ship propeller shaft

#68
20140037237
2014-02-06

Quick change bearing holder apparatus for a rotating shaft

#69
20130300069
2013-11-14

Metal coil propeller shaft seal for watercrafts including deep dive vessels

#70
20130300068
2013-11-14

Seal arrangement with improved shaft bushing for a rotating ship propeller shaft

#71
20130220196
2013-08-29

Shaft seal arrangement for a ship bulkhead

#72
20130189084
2013-07-25

Arrangement, a sealing assembly, a casing flange and a spacer for sealing the propeller shaft of a marine vessel

#73
20120238160
2012-09-20

Drive device for water vehicles

#74
20120015569
2012-01-19

Ship propulsion system and ship equipped therewith

#75
20110304102
2011-12-15

Seal ring and stern tube sealing device

#76
20110135452
2011-06-09

Pod drive

#77
20110021095
2011-01-27

Contra-rotating propeller marine propulsion device

#78
20110008169
2011-01-13

Device for sealing a rotating shaft

#79
20100301566
2010-12-02

Fluid activated shaft seal

#80
20100297896
2010-11-25

MARINE PROPULSION AND CONSTRUCTIONAL DETAILS THEREOF

#81
20100264598
2010-10-21

APPARATUS OF BILGE PREVENTION FOR A SHIP

#82
20100178817
2010-07-15

Contra-rotating propeller supported on rudder horn of ship

#83
20090293794
2009-12-03

Shaft seal pressure compensation system for an underwater device

#84
20090036006
2009-02-05

Drive shaft sealing device for small watercraft

#85
20080214068
2008-09-04

Enclosed shaft system for marine propulsion

#86
20080146097
2008-06-19

Propeller thrust transmission device for a watercraft propulsion device

#87
20080063327
2008-03-13

Integral bearing unit made from a slippery/polymer alloy

#88
20070281560
2007-12-06

Seal pressure vent system for a waterjet apparatus

#89
20070246892
2007-10-25

Support Ring and Axis Leadthrough

#90
20070230848
2007-10-04

Marine drive shaft-bearing structure

#91
20070217722
2007-09-20

Bearing assembly with damping elements

#92
20060223391
2006-10-05

Drive shaft supporting structure for a small boat, and personal watercraft incorporating same

#93
20060177164
2006-08-10

Propeller shaft bearing

#94
20060131816
2006-06-22

Method and device for excluding entry of debris into an outer seal of a shaft passing through the hull of a maritime vessel

#95
20060108745
2006-05-25

Fluid-activated shaft seal

#96
20050253340
2005-11-17

Sealing apparatus having sequentially engageable seals

#97
20050250395
2005-11-10

Water management system for propeller shaft seal

#98
20050207683
2005-09-22

Stave bearing assembly and stave for a bearing assembly

#99
20050126849
2005-06-16

Damping of vibrations

#100
20050124236
2005-06-09

Drive shaft supporting structure for jet propulsion watercraft

#101
20050084382
2005-04-21

Pulling marine propeller

#102
18190547
2026-02-24

Lower unit for a marine propulsion device

#103
17745517
2023-02-21

Systems and methods for absorbing shock with counter-rotating propeller shafts in a marine propulsion device

#104
16723228
2022-06-21

Systems and methods for absorbing shock with counter-rotating propeller shafts in a marine propulsion device

#105
16242866
2020-07-14

Long shaft propeller controller and bearing seal protector

#106
15685411
2019-03-19

Marines drives and propeller shaft bearing hubs for marine drives having turning vanes that facilitate discharge of exhaust gas