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Class 440/90 - PADDLE WHEEL


Subclass of Class 440 - Marine propulsion
Definition: Device wherein the means to provide the motive force for
No. of patents: 61
Last issue date: 11/11/2008


1    
NumberTitleIssue Date
7448930Paddlewheel vessel thruster
A paddlewheel thruster for propelling a marine vessel is provided with a trimming device to automatically trim the paddlewheel independently of the vessel. Automated trimming primarily achieved by means of a buoyant rudder and a fin and an articulated paddlewheel su...
11/11/2008
7381109Water craft with new configuration of active hulls and stationary hulls for better hydrodynamic performance, greater stability and increased versatility
Water craft achieving better hydrodynamic performance, greater stability and increased versatility. The improvement over the water craft in the U.S. Pat. No. 6,595,815 is achieved by the use of a new configuration of the active hulls and the stationary hull, the mod...
06/03/2008
7270513Apparatus and method for generating power from moving water
Apparatus for generating power from a water current in a body of water comprises a longitudinally extending flotation platform for maintaining the apparatus afloat in the body of water and a water turbine operatively carried by the platform for generating power in r...
09/18/2007
7247070Portable ice rescue craft
A portable ice rescue craft includes a plurality of locking raft sections that are foldable for storage and transport. A drive unit includes a drive wheel driven by an electric motor via a drive belt. The drive wheel may include a plurality of spikes configured to e...
07/24/2007
7191721Innovative hull-less naval vessel
A hull-less naval vessel includes a platform completely raised from the liquid medium by of rotating floating elements fixed beneath the platform by of ball bearings. Through the lifting effect of the floating elements, the vessel will glide on the liquid surface wi...
03/20/2007
7134629Structural panels for use in aircraft fuselages and other structures
Structural panels for use in manufacturing aircraft fuselages and other structures are disclosed herein. In one embodiment, a structural panel configured in accordance with the invention includes a skin and at least first and second stiffeners. The first stiffener c...
11/14/2006
7090553Paddle wheel propulsion system and improved paddle used therewith
A paddle wheel propulsion system includes a paddle wheel mounted for rotation about its horizontal axis for propelling a vessel, and for unlimited rotation about a vertical axis perpendicular to its horizontal axis for steering the vessel. The paddle wheel is also s...
08/15/2006
7070468Multi-hull watercraft with amidships-mounted propellers
An efficient double-ended watercraft is disclosed that comprises four low-Froude number hulls: two forward, two aft, two on the port side, and two on the starboard. Each hull comprises an independent engine that drives a propeller shaft and propeller that is located...
07/04/2006
7040941Vessel propulsion system
The present invention relates to a vessel propulsion system and, more specifically, to a vessel propulsion system with improved efficiency and which leads to reduced wave formation, which comprises a propulsion device immersed at least partially in water and which r...
05/09/2006
6814636Marine radial surface drive
A marine outdrive attachable to the transom of a boat having a conventional inboard engine and transmission. Said drive includes an aft support member extending rearwardly and pivotably attached to the transom whereby hydraulic actuators control vertical elevation o...
11/09/2004
6595815Watercrafts with active hulls attain substantial hydrodynamic drag reduction
Watercrafts comprising rotatable hulls that serve as propulsors. The hulls are rotors with paddle surfaces and are arranged three-dimensionally to gain the capability of actively diverting water toward the side and the rear, for the purpose of drastically...
07/22/2003
6450111Fan-based propulsion and pressure flow system
There is provided a combined pressure and thrust fan consisting of a solid circular disk with a plurality of radially spaced airfoil-shaped blades. The selective direction of airflow over an aft sector of the fan provides net thrust. The fan may be mounte...
09/17/2002
6447352Propulsion system
A paddle drive system comprising: a slow speed hydraulic motor drive having at least one bearing which is axial, radial or both axial and radial; and a shaft secured to the at least one bearing of the hydraulic motor; and at least one, and preferably two paddlewhee...
09/10/2002
6379206Rescue holding clamp
A rescue clamp rescues precariously located victims, such as swimmers in water, such as seas, rivers, streams, ponds or swimming pools, climbers in deep ravines, persons on top of a burning building or persons fallen down a well. The rescue clamp includes...
04/30/2002
6379205Rescue holding clamp
A rescue clamp rescues precariously located victims, such as swimmers in water, such as seas, rivers, streams, ponds or swimming pools, climbers in deep ravines, persons on top of a burning building or persons fallen down a well. The rescue clamp includes...
04/30/2002
6247981Recreational watercraft
A manually powered recreational watercraft comprises a hull and a pair of paddle wheels independently mounted on opposed sides of the hull. Each paddle wheel comprises a plurality of vanes circumferentially distributed on a semi-spherical hub having an in...
06/19/2001
6241321All terrain wheel for a wheelchair
An all terrain wheel for a wheelchair includes an integral wheel body having an annular rim, a central hub, and an array of struts extending radially between the hub and the rim. An outer face of the rim includes a circumferential groove sized and configu...
06/05/2001
6083062Portable pedal-operated paddlewheel boat
A lightweight, collapsible boat comprises twin parallel hulls, a frame and human-powered paddlewheels outboard of the two hulls. The boat's frame is capable of being collapsed and packed into a bundle for carrying as a backpack. The drive comprises a peda...
07/04/2000
5989081Pedal boat
A pedal boat comprises an integrally molded hollow hull having an upper surface where water passengers can be seated. The hull is provided with drain holes to conduct water away from the pedal boat. A steering assembly and paddle wheel assembly are mounte...
11/23/1999
5881831Multi-terrain amphibious vehicle
A multi-terrain amphibious vehicle adapted for travel across surfaces of various type and attributes is provided. The vehicle includes a chassis assembly (10) which extends in a longitudinal direction; a plurality of propulsion members rotatably coupled t...
03/16/1999
5850801Pushing unit
A water craft assembly comprising a towboat (1) and a barge (2) pushed and steered by the towboat (1) and which is designed and constructed for use in shallow water with an optimal cargo-carrying capacity, and wherein the towboat includes a paddle wheel d...
12/22/1998
5785564Water craft with a hydrofoil-bladed wheel assembly
A self-propelled water craft includes a hydrofoil-bladed wheel assembly which allows an individual to propel the water craft through the water at a relatively high speed. The assembly comprises an open frame with attachment means for securing to a stern o...
07/28/1998
5755602Nautical propulsion device
A nautical propulsion device for amphibious vehicle wherein the rims 2 of the driving wheel tires 1 are provided with vanes 3 rotating with the wheels. Each of these wheels comprises, in the region where the liquid leaves the vanes 3, an open delivery cha...
05/26/1998
5501072Combined centrifugal and paddle-wheel side thruster for boats
A thrust propulsion mechanism (10) for a boat (12) includes an outlet conduit (22) extending athwartships from a first outlet port (16) to a second outlet port (16') in the hull (18). A paddle-wheel impeller (24) is mounted within the hull for rotation ab...
03/26/1996
5453031Hand propulsion device for a paddle boat
A hand propulsion device for a paddle wheel boat has a cranking mechanism of handles turning a sprocket. The sprocket drives a chain, which is mounted between the first sprocket and a second sprocket. The chain, in part, turns the second sprocket, which t...
09/26/1995
5427554Recreational water craft
A recreational water craft of uncomplicated design and construction is provided herein which is adaptive to be manually powered by one or more crew members or readily converted from manual power to sail (or supplement by sail) without loss of stability or...
06/27/1995
5381752Paddle boat
A paddle boat includes wheels at the sides of the boat. The paddle wheels have vanes and a central rim. The rim is used to propel the boat on land. The boat has seats in front of and behind peddles used to drive the wheels. The peddles have front and back...
01/17/1995
5312164Vehicle propelling member and assembly
A vehicle propelling assembly to propel a vehicle in a given direction comprises a pair of propelling members (19a, 19b) each having a body portion (20a, 20b) which rotates about a rotation axis extending substantially at right angles to the direction of ...
05/17/1994
5248271Built-up watercraft
A built-up watercraft includes a body consisted of three base boards hinged together and bilaterally supported on two floats by two wings, two propeller runners bilaterally coupled to a transmission mechanism mounted on the body at the back, a rudder asse...
09/28/1993
5226843Amphibian bicycle
An amphibian bicycle including a bicycle body, two pairs of air tubes, air tube supporting members, a direction controller, a plurality of wheel webs, a front brake locking member, a rear brake pad lifting member, and a ratchet gearing stopper, whereby on...
07/13/1993
5213528Paddle wheel for a ship
A paddle wheel for propelling a water craft. The paddle wheel includes a plurality of oppositely disposed paddles which are rotatable with a supporting shaft. Each of the paddles are formed with side and end plates with a rounded portion between the outer...
05/25/1993
5205767Propelling system suitable for use on watercraft
The main rotor (1) located at the bow (3) of the hull (4) is transverse to a vertical plane through the axis of the hull and consists of two or more units of cylindrical wheels (5), which are equipped with blades (17). Each unit of cylindrical wheels (5) ...
04/27/1993
5149118All-terrain wheelchair
An all-terrain wheelchair comprising a frame constructed of tubular air-filled frame members to enable the wheelchair to be amphibious. A pair of rear drive wheels are rotatably mounted on the rear of the frame and are controlled by ratchet arms operative...
09/22/1992
5110313Separable blade assembly for rubber raft
A separable blade assembly for a rubber raft, which can be easily disassembled and conveniently carried, including two blade members, two rod members, and a bolt member. The two blade members can be associated to form a blade assembly and the two rod memb...
05/05/1992
5071378Boat impeller wheel for minimizing the splashes therefrom
A boat impeller wheel includes a rotating shaft, and a plurality of supporting rods extending radially from the rotating shaft. An impeller vane is mounted rotatably on each of the supporting rods. When any one of the impeller vanes leaves water's surface...
12/10/1991
4979916Canoe paddle assembly
The present invention provides a paddle assembly particularly designed for attachment to a canoe. The paddle assembly comprises a plurality of paddle members at opposite ends of the assembly, a central crank with sideways extending drive shafts to the pad...
12/25/1990
4926777Aquatic wheelchair
An aquatic wheelchair having a main flotation body of thermoplastic material of closed cell construction including a seat portion and an integral backrest portion. Flotation paddle wheels are connected to the seat portion and a flotation stabilizer wheel ...
05/22/1990
4925410Tilt mechanism lock for outboard motors
A conventional tilt mechanism for an outboard motor which includes a series of trim position notches and an uppermost trailering position notch includes a tilt position locking mechanism which is manually operable to lock the motor in the trailering posit...
05/15/1990
4832642Outboard boat propulsion installation
Two centrifugal pump and paddle type boat propulsion devices are mounted in astern outboard positions on two swingable vanes, respectively, projecting aft of a boat hull, spaced athwartships of the hull and swingable from positions inclined rearwardly and...
05/23/1989
4819575Marine conversion for cycle
An engine powered cycle is converted for use on water by attaching an elongated float to a steering wheel support and by replacing the driving wheels with a pair of paddle floats. Another float positioned between and aft of the paddle floats may be employ...
04/11/1989
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