Marine tractor surface drive system
US5439403A · kind A · utility
9Cited by
15References
16Claims
0Family size
Inventor
Key dates
| Filing date | Feb 28, 1994 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | Feb 28, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H2001/185
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A marine tractor surface drive propulsion system is provided with a housing construction that can be retrofit to existing boat hulls and does not require a dedicated hull, with a parallel countershaft transmission that provides the efficiencies of a tractor surface drive and where a portion of the transmission housing extends over and protectively shields the,surface drive propeller of the drive system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.