Class 440/82 - Supporting strut

Subclass of Class 440 - Marine propulsion
Definition: Device wherein a strengthening brace attaches a propeller
No. of patents: 27
Last issue date: 09/21/2010

Number	Title	Issue Date
7798875	Helical marine strut A support for a marine motor propeller shaft comprising a single leg having an upper section attached to the hull of a boat and a lower section supporting a propeller shaft. The leg has an angled helical twist near the upper section such that the propeller support i...	09/21/2010
7431621	Drive shaft supporting structure for a small boat, and personal watercraft incorporating same A drive shaft supporting structure for a small boat is provided which permits simplification of a hull and for which manufacturing productivity is increased. The drive shaft supporting structure includes a shaft-supporting member for rotatably supporting a drive sha...	10/07/2008
7413491	Marine vessel propulsion structure and marine vessel driving apparatus In an outboard drive or an inboard-outboard drive, power generated by a single engine is transmitted in left and right directions from a main drive shaft, thereby finally causing left and right propellers to be rotated, the left and right propellers being arranged a...	08/19/2008
7325652	Bumper/muffler assembly A bumper/muffler assembly is provided comprising a bumper; and a muffler having an outer shell. The outer shell may be formed from a non-high impact resistant material, such as a thin metal or a composite material. The muffler may comprise a separate element from th...	02/05/2008
7086914	Modular bracket system for engine mounted trolling motors and the like A modular engine mount (EM) trolling motor/lower unit mounting bracket is provided. The bracket includes a lower mounting EM bracket that is secured to the cavitation plate of a vessel's outboard or I/O. This lower bracket includes a support carriage that supports t...	08/08/2006
7044816	Jet drive and retractable rudder fin and filter systems and methods for watercraft A watercraft is fitted with any one or combination of a retractable rudder fin and filter systems and improved jet drive systems. A retractable rudder-fin and filter system includes an extendable/retractable blade and a mechanism for extending the blade a variable a...	05/16/2006
6945833	Fluid thrust assembly with self-aligning thrust bearings A thrust bearing assembly is described that includes a self-aligning thrust bearing used in fluid thrust assemblies where the thrust may become unevenly distributed, e.g. in a water jet propulsion unit. The thrust bearing is designed to be lubricated by water and to...	09/20/2005
6902452	Marine split bearings with right angle removeable grooved retainer covers A sternpost or strut bearing assemblage is disclosed having a flat mounting plate integrally formed with a pair of separated collars, which collars have their centers longitudinally aligned with each other to receive a vessel's drive shaft. A pair of opposed split b...	06/07/2005
6767461	Separator A separator for separating particles entrained in a fluid is disclosed. The separator includes a sleeve adapted to be mounted over a rotatable shaft for forming a cavity therebetween, an inlet to the cavity, an outlet to the cavity and means for imparting a centrifu...	07/27/2004
6325687	Overheat indicator for strut bearing and stern tube bearing For monitoring the temperature of a water-cooled bearing mounted in a strut on an engine-driven water vessel and supporting the vessel's propellor shaft, a heat sensor on the strut for sensing the bearing temperature, and visual and/or audible indicator m...	12/04/2001
6287162	Bearing arrangement for drive shaft of water jet apparatus A water jet apparatus having a single drive shaft rotatably supported by a pair of bearings installed in an inlet housing. The impeller is securely mounted on a splined end of the drive shaft which extends out of the inlet housing in the aft direction. Th...	09/11/2001
6244914	Shift and steering control system for water jet apparatus A water jet apparatus mounted to a horizontal hull section and having a shift and steering control assembly which penetrates a hole in that hull section. The shift and steering control assembly has a modular lever and shaft subassembly which is installed ...	06/12/2001
5582528	Composite and fairwater structures for marine vessels In a marine vessel having a drive shaft that extend rearwardly from its hull, wherein the drive shaft has a coupling and a bearing assembly along its length that are supported by struts, which struts are also secured to the hull of the vessel. A coupling ...	12/10/1996
5540173	Composite and fairwater structures for marine vessels In a marine vessel having a drive shaft that extend rearwardly from its hull, wherein the drive shaft has a coupling and a bearing assembly along its length that are supported by struts, which struts are also secured to the hull of the vessel. A coupling ...	07/30/1996
5292270	Composite and fairwater structures for marine vessels In a marine vessel having a drive shaft that extend rearwardly from its hull, wherein the drive shaft has a coupling and a bearing assembly along its length that are supported by struts, which struts are also secured to the hull of the vessel. A coupling ...	03/08/1994
5248270	Strut support for propeller shaft An improved strut support for propeller shafts of marine vessels is provided. The improved strut support includes a palm, a strut section and a propeller shaft bearing. The palm includes horizontal and vertical sections for mounting to the hull and transo...	09/28/1993
5232386	Counter rotating strut drive A strut mounted, counter rotation marine propeller propulsion system of the single engine is provided including a depending propeller shaft strut from which aligned front and rear propeller shafts are supported including remote ends disposed exteriorly of...	08/03/1993
5100350	Device for regulating the inclination angle of a surface propeller shaft line as to the water plane The present invention relates to a regulating device which permits changing inclination angle of the shaft line of a propeller and comprises an at least partially spherical and revolving box containing the support bearings of the propeller shaft and two s...	03/31/1992
5083950	Apparatus for reducing cavitation erosion Apparatus for reducing cavitation erosion is disclosed which includes ducts and openings (30, 32, 34, 40) for discharging a stream of gas positioned upstream of and adjacent to a propeller (11), in a direction perpendicular to the oncoming flow and at a l...	01/28/1992
5017168	Counter-rotating boat propeller drive A dual boat propeller structure is described for counter-rotation of the propellers. A housing is located outside the boat hull in alignment and connection with an engine shaft. The housing stores a conversion mechanism with which coaxially-mounted propel...	05/21/1991
4932908	Energy efficient asymmetric pre-swirl vane and twisted propeller propulsion system An asymmetric set of pre-swirl vanes (stators) and a specially matched propeller for use on an inclined shaft. The propulsor is designed by considering the mutual interaction of the propeller on the vanes and the vanes on the propeller. The propulsor unit...	06/12/1990
4919630	Inboard drive system for a marine craft The present invention is directed towards a drive system for a marine craft of the type wherein the power plant or drive engine is located inboard of the craft and the overall craft is designed for high performance operation. The system includes twin driv...	04/24/1990
4710142	Propeller shaft bearing assembly A multi-layered sleeve bearing supports the propeller shaft of a propeller-driven water craft, the layered sleeves comprising an outer fixed master housing, an intermediate removable bearing housing, and an innermost bearing sleeve press-fitted in the rem...	12/01/1987
4498873	Surface effect ship propeller mount There is disclosed in a surface effect ship which is constructed substantially of aluminum alloy material a hull construction including a side hull component which is bottomed by an operationally "wet" aluminum alloy keel plate, an improved propeller supp...	02/12/1985
4383829	Drive assembly for inboard speedboat A high performance speedboat with a planing type hull and incorporating a drive mechanism having a one or two-speed-forward, step-up, V-gear, hydraulic transmission, which connects the engine drive shaft and the propeller shaft in V-drive structure. The p...	05/17/1983
4089289	Movable boat propulsion apparatus A movable boat propulsion apparatus for use with an inboard drive comprising a drive assembly disposed within a pivotally mounted housing coupled at one end to the drive by a universal joint and coupled at the opposite end to a propeller mounted on a subs...	05/16/1978
3938464	Contra-rotating propeller drive system A contra-rotating propeller system, particularly adapted for high speed water craft, is characterized by a movable support for at least one of two nominally-aligned and independently driven contra-rotating propellers. In a particular embodiment a forward ...	02/17/1976

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Class 440/82 - Supporting strut