Patent · US Expired

Air thrust propulsion boat-drive train

US5082465A · kind A · utility

19Cited by
9References
69Claims
0Family size

Inventor

Key dates

Filing dateMay 25, 1989
Grant dateJan 21, 1992
Priority date—
Expiry dateMay 25, 2009

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB63H7/02
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A drive train for an air thrust propulsion boat which has a propeller encircled by a noise reducing and efficiency increasing shroud. The shroud and propeller rotate about a generally vertical axis providing steering control for the boat. A plurality of rudders are attached to the rearward side of the propeller shroud in the slipstream of the propeller and serve as a secondary means for steering the boat. An engine which powers the propeller is remotely positioned from the propeller giving the boat a lower center of gravity. Connected to the engine is an automotive type automatic transmission which gives the boat both forward and reverse motion capabilities.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.