US2016107737A1PendingUtilityA1

Apparatus for propelling watercraft

7
Assignee: TURNER KIMPriority: Oct 20, 2014Filed: Oct 19, 2015Published: Apr 21, 2016
Est. expiryOct 20, 2034(~8.2 yrs left)· nominal 20-yr term from priority
Inventors:Kim Turner
B63H 5/14B63H 1/12B63H 1/16
7
PatentIndex Score
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References
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Claims

Abstract

An apparatus for use in propelling a watercraft having: a housing with a hollow interior and having a water inlet end and a water outlet end; a central hub adapted to receive a propeller shaft; and a plurality of blades radiating out of the hub; the apparatus arranged such that the blades and hub are provided within the housing and the blades are fixed to the housing and to the hub, the apparatus is formed such that when in use with an engine on a watercraft, the propeller shaft of the engine is inserted into and attached to the hub and activation of the engine causes the shaft, hub, blade and housing to all rotate resulting in the apparatus propelling the watercraft across or through the water.

Claims

exact text as granted — not AI-modified
1 . An apparatus for use in propelling a watercraft having:
 a housing with a hollow interior and having a water inlet end and a water outlet end;   a central hub adapted to receive a propeller shaft; and   a plurality of blades radiating out of the hub;   
       the apparatus arranged such that the blades and hub are provided within the housing and the blades are fixed to the housing and to the hub, the apparatus is formed such that when in use with an engine on a watercraft, the propeller shaft of the engine is inserted into and attached to the hub and activation of the engine causes the shaft, hub, blade and housing to all rotate resulting in the apparatus propelling the watercraft across or through the water. 
     
     
         2 . An apparatus according to  claim 1 , wherein the blades are welded to the inside of the housing. 
     
     
         3 . An apparatus according to  claim 1 , wherein the blades are welded to the outside of the hub. 
     
     
         4 . An apparatus according to  claim 1 , wherein the blades are fastened with screws to the housing. 
     
     
         5 . An apparatus according to  claim 1 , wherein the central hub has an outer hub and an inner hub. 
     
     
         6 . An apparatus according to  claim 1 , wherein the central hub has an outer hub and an inner hub and wherein the outer hub and inner hub are connected by ribs. 
     
     
         7 . An apparatus according to  claim 1 , wherein the central hub has an outer hub and an inner hub and wherein the outer hub and inner hub are connected by three ribs. 
     
     
         8 . An apparatus according to  claim 1 , wherein the hub has an internal female spline adapted to receive a male spline on a propeller shaft. 
     
     
         9 . An apparatus according to  claim 1 , wherein the apparatus has at least three blades. 
     
     
         10 . An apparatus according to  claim 1 , wherein the apparatus has at least four blades. 
     
     
         11 . An apparatus according to  claim 1 , wherein the housing is substantially cylindrical. 
     
     
         12 . An apparatus according to  claim 1 , wherein the apparatus has at least one bracket which is welded to at least one blade and the bracket is fastened to the housing with screws. 
     
     
         13 . An apparatus according to  claim 1 , wherein the apparatus has a tapered cone which is adapted to releasably engage with the water outlet end of the housing. 
     
     
         14 . An apparatus according to  claim 1 , wherein the apparatus has a tapered cone which is adapted to releasably engage with the water outlet end of the housing and wherein the cone is adapted such that it can releasably engage with a propeller shaft. 
     
     
         15 . An apparatus according to  claim 1 , wherein the housing, blades and hub are made substantially from plastic, fibreglass and/or carbon fibre. 
     
     
         16 . An apparatus according to  claim 1 , wherein the housing blades and hub are made substantially from aluminium and/or stainless steel. 
     
     
         17 . An apparatus according to  claim 1 , when in use with a watercraft. 
     
     
         18 . An apparatus according to  claim 1 , when in use with an outboard engine. 
     
     
         19 . An apparatus according to  claim 1 , when in use with an inboard engine.

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