Fin assembly for power boats
US4088091A · kind A · utility
Inventor
Key dates
| Filing date | Nov 3, 1976 |
| Grant date | May 9, 1978 |
| Priority date | — |
| Expiry date | Nov 3, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H5/16
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
There is disclosed a fin structure for mounting in an opening in the hull of a power boat having an elongated rectangular panel connected between the base edges of a pair of elongated fins, each fin having a base edge, a leading edge and a trailing edge, being joined to the elongated rectangular panel to locate the pair of fins in substantially parallel alignment and to form a channel adapted to receive a propeller and propeller shaft therein with the propeller in proximity of the trailing edges, the trailing edge of each fin projecting from one end of the base edge beyond the outer most extremeties of the propeller received in the channel, the leading edge extending from the end of the trailing edge and sloping forward along the hull to the other end of the base edge in a manner to be more distant from the rectangular panel at any point than the propeller shaft received in the channel such that the propeller and propeller shaft are entirely contained within the channel formed between the pair of fins to protect the propeller and propeller shaft from damage when the fin structure is mounted in the opening in the hull such that the fins extend from the hull, the leading edges formin…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.