| Patents for B63H 3 - Propeller-blade pitch changing (787) |
|---|
| 05/10/1994 | CA2017718C Multi-bladed propulsion apparatus |
| 05/04/1994 | EP0595420A1 Variable-pitch propeller or fan |
| 04/27/1994 | EP0593907A1 Device for changing the angular position of the rotor blades of a hydraulic fluid engine |
| 03/30/1994 | EP0589339A1 Regulation for the propulsion of a boat with a motor and a controllable pitch propeller |
| 03/30/1994 | EP0589338A1 Controllable pitch propeller, especially for sporting boats |
| 03/03/1994 | DE4229430A1 Rotor blade adjusting mechanism - has adjusting rod, extending through rotor shaft and coupled positively to blades. |
| 03/01/1994 | US5290147 Variable pitch marine propeller with shift biasing and synchronizing mechanism |
| 02/17/1994 | DE4226637A1 Propeller structure for ship - has one or more blades comprising root and at least two ends |
| 02/15/1994 | US5286166 Automatic centrifugal force variable pitch propeller |
| 01/26/1994 | EP0464085B1 Feathering propeller with a manually adjustable pitch |
| 01/25/1994 | US5281095 Variable-pitch mechanism for a propeller |
| 01/18/1994 | CA1326173C Variable pitch propeller blades and drive and adjusting mechanism therefor |
| 10/05/1993 | US5249992 Marine propulsion unit with controlled cyclic and collective blade pitch |
| 08/31/1993 | US5240374 Damped automatic variable pitch marine propeller |
| 08/03/1993 | US5232345 Feathering propeller with a manually adjustable pitch |
| 07/21/1993 | EP0551367A1 Method and means for achieving optimum utilization of the propulsion engine of a vessel. |
| 07/13/1993 | US5226844 Actuator for variable-pitch propeller |
| 06/15/1993 | US5219272 Variable pitch marine propeller with hydrodynamic shifting |
| 06/09/1993 | EP0545666A2 Variable pitch marine propeller with hydrodynamic shifting and shift biasing and synchronizing mechanism |
| 05/25/1993 | US5213472 Inboard servo for marine controllable pitch propellers |
| 04/20/1993 | US5203675 Variable-pitch propeller having feathering blades |
| 02/11/1993 | DE4125436C1 Propeller with detachable blades - has feet on blades bolting onto depressions in hub and includes streamline sleeve for hub |
| 10/27/1992 | WO1992019493A1 Damped automatic variable pitch marine propeller |
| 10/27/1992 | US5159620 Variable pitch propeller apparatus |
| 10/27/1992 | CA2086336A1 Damped automatic variable pitch marine propeller |
| 09/08/1992 | US5145318 Flange-mounted controllable pitch marine propeller |
| 08/06/1992 | WO1992012895A1 Automatic variable discrete pitch marine propeller |
| 07/14/1992 | US5129785 Automatic variable discrete pitch marine propeller |
| 07/01/1992 | EP0493005A1 Variable-pitch mechanism of a propeller |
| 05/07/1992 | DE4034587A1 Marine screw propeller - has brake-damper device for propeller hub, and cooperates with motor-driven hub |
| 04/30/1992 | WO1992006890A1 Method and means for achieving optimum utilization of the propulsion engine of a vessel |
| 04/21/1992 | CA1299031C Method and apparatus for preventing the attachment of foreign bodies to controllable pitch propeller linkages of watercraft |
| 04/15/1992 | EP0480211A1 Controllable pitch propeller |
| 04/14/1992 | US5104291 Variable pitch propeller blade hub and drive and adjusting mechanism therefor |
| 04/07/1992 | US5102301 Variable pitch propeller blades, hub and drive and adjusting mechanism therefor |
| 03/25/1992 | EP0477145A1 A variable-pitch propeller having feathering blades |
| 01/08/1992 | EP0464085A1 Feathering propeller with a manually adjustable pitch. |
| 12/17/1991 | US5073134 Boat drive with adjustable pitch propeller |
| 10/29/1991 | US5061212 Ship drive with variable-pitch propeller |
| 09/10/1991 | US5046973 Boat propeller |
| 07/17/1991 | CN1013184B Adjustable propeller |
| 07/16/1991 | US5032057 Automatic variable pitch marine propeller |
| 07/10/1991 | EP0436131A1 Boat propulsion with controllable pitch propeller |
| 07/05/1991 | CA2033559A1 Boat drive with adjustable pitch propeller |
| 06/11/1991 | US5022820 Variable pitch propeller |
| 05/29/1991 | EP0428861A1 Control for boat propulsion with an engine and a controllable pitch propeller |
| 05/22/1991 | CA2030343A1 Ship drive with variable-pitch propeller |
| 05/21/1991 | US5017090 Variable pitch propeller blades and drive and adjusting mechanism therefor |
| 04/17/1991 | EP0321501B1 Boat propeller |
| 02/07/1991 | DE3925175A1 Marine craft variable pitch propeller - has mechanism which can set different blades at different pitch angles |
| 01/15/1991 | US4984968 Variable pitch propellers |
| 01/03/1991 | DE3921582A1 Device for singling out and removing sheets from stack - has slider pressing against back of stack with permanent preset force |
| 11/27/1990 | US4973225 Adjustable propeller |
| 10/23/1990 | US4964822 Variable pitch propeller for watercraft |
| 10/04/1990 | WO1990011221A1 Feathering propeller with a manually adjustable pitch |
| 10/02/1990 | US4960397 Variable pitch propeller assembly |
| 09/12/1990 | EP0387183A2 Variable propeller system incorporating a forward transfer bearing |
| 09/07/1990 | CA2008792A1 Variable propeller system incorporating a forward transfer bearing |
| 08/28/1990 | US4952083 Controllable pitch propeller assembly |
| 08/02/1990 | DE3901672A1 Controllable-pitch marine propeller with adjustable stops |
| 07/26/1990 | DE3901137A1 Method of controlling a boat propulsion system with an engine and a controllable-pitch propeller |
| 07/17/1990 | US4941802 Multi-bladed propulsion apparatus |
| 06/26/1990 | US4936746 Counter-rotation pitch change system |
| 05/29/1990 | US4929201 Variable pitch marine propeller system |
| 05/29/1990 | US4929153 Self-actuating variable pitch marine propeller |
| 05/09/1990 | EP0367623A1 Improvement in variable pitch propellers |
| 04/18/1990 | EP0363997A2 Counter-rotation pitch change system |
| 04/04/1990 | EP0360895A1 Controllable pitch propeller, in particular for boat propulsion |
| 03/27/1990 | CA1267050A1 Apparatus and method for load control of an engine |
| 03/13/1990 | US4907992 Oil distribution box for a marine controllable pitch propeller |
| 03/06/1990 | US4906213 Apparatus for detecting the pitch of a marine controllable pitch propeller |
| 02/27/1990 | CA1266204A1 Propeller system with electronically controlled cyclic and collective blade pitch |
| 02/13/1990 | US4900280 Apparatus for detecting the pitch of a marine controllable pitch propeller |
| 01/30/1990 | US4897056 Propeller for water vehicle |
| 01/25/1990 | WO1990000492A1 Automatic variable pitch marine propeller |
| 01/24/1990 | EP0351986A1 Automatic variable pitch marine propeller |
| 01/16/1990 | US4893989 Variable propeller system incorporating a forward transfer bearing |
| 11/14/1989 | US4880402 Method and apparatus for preventing the attachment of foreign bodies to controllable pitch propeller linkages of watercraft |
| 10/25/1989 | CN1036535A Adjustable propeller |
| 10/11/1989 | EP0336054A1 Variable-pitch propeller |
| 10/10/1989 | US4872811 Inboard servo for marine controllable pitch propellers |
| 09/26/1989 | CA1260773A1 Reversible and self-adjusting propeller device |
| 08/23/1989 | EP0328966A1 Boat propeller blade pitch changing |
| 08/09/1989 | EP0232358B1 Control system for propeller with controllable pitch |
| 07/12/1989 | CN2040881U Automatic moment-changing oar |
| 06/28/1989 | EP0321501A1 Boat propeller. |
| 05/03/1989 | CN2036933U Rotary barrel type variable pitch propeller |
| 04/19/1989 | EP0201500B1 A device in fluid pressure generators |
| 03/07/1989 | US4810166 Controllable pitch marine propeller |
| 01/25/1989 | EP0300252A1 Variable pitch propellor for water-borne vessels |
| 01/11/1989 | EP0298932A1 Stern mounting structure for rudder, screw propeller, and shafting suitable for ships of any kind and use |
| 01/11/1989 | EP0298891A2 Pitch control capacitance coupling |
| 01/04/1989 | EP0297162A1 Variable-pitch propellor for water-borne vessels |
| 12/20/1988 | US4792279 Variable pitch propeller |
| 12/13/1988 | CA1246519A1 Pitch control system for variable pitch propeller |
| 11/01/1988 | US4781533 Control system for propeller with controllable pitch |
| 09/07/1988 | EP0281022A1 Controllable pitch propeller for water craft |
| 07/12/1988 | US4756667 Pitch control capacitance coupling |
| 05/24/1988 | CA1237027A1 Controllable pitch propeller and watercraft drive |
| 05/17/1988 | US4744727 Controllable pitch propeller and watercraft drive |