US2006211314A1PendingUtilityA1

Bravo drive propeller shaft

25
Individually held — no corporate assignee on recordPriority: Mar 17, 2005Filed: Mar 17, 2005Published: Sep 21, 2006
Est. expiryMar 17, 2025(expired)· nominal 20-yr term from priority
Inventors:Rolf Papke
B63H 1/14B63H 2001/185B63H 23/34
25
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A propeller drive system for V-hull and catamaran racing vessels including an offshore racing cleaver propeller run on a water's surface by means of a long, thick propeller shaft coupled with a Bravo Drive.

Claims

exact text as granted — not AI-modified
1 . A stern mounted propulsion system for a marine vessel comprising: 
 a Bravo unit drive motor;    a bearing carrier at an output end of said motor;    a propeller shaft coupled to said motor via said bearing carrier, having a splined first end and a threaded second end; and    an offshore racing cleaver propeller on said threaded second end.    
   
   
       2 . The propulsion system of  claim 1  wherein said propeller shaft is coupled to said motor in running said cleaver propeller on the surface of the water through which the vessel is propelled.  
   
   
       3 . The propulsion system of  claim 2  wherein said cleaver propeller is composed of one of four, five and six blades.  
   
   
       4 . The propulsion system of  claim 2  wherein said cleaver propeller is of a four-blade construction, of 16.5 inch diameter.  
   
   
       5 . The propulsion system of  claim 4  wherein said cleaver propeller is one of a 31 inch and 35 inch pitch.  
   
   
       6 . The propulsion system of  claim 2  wherein said propeller shaft is of a length and girth to ride above the surface of the water through which the marine vessel is propelled.  
   
   
       7 . The propulsion system of  claim 2  wherein said propeller shaft is of a length and girth to ride to a height of 2½ inches above the surface of the water through which the marine vessel is propelled.  
   
   
       8 . The propulsion system of  claim 6  wherein said propeller shaft is of a length of substantially 18.400 inches and of a girth at its widest part of substantially 2.350 inches.  
   
   
       9 . The propulsion system of  claim 8  wherein said threaded second end of said propeller shaft is of a diameter of substantially 1.000 inches.  
   
   
       10 . The propulsion system of  claim 9  wherein said splined first end of said propeller shaft is of a diameter of substantially 1.125 inches.  
   
   
       11 . The propulsion system of  claim 10  wherein said propeller shaft is composed of chrome finished, heat treated stainless steel.

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