Boat propeller case and lock
US5469721A · kind A · utility
15Cited by
14References
10Claims
0Family size
Inventor
Key dates
| Filing date | Mar 25, 1994 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Mar 25, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/5867
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A case and lock for reducing damage and deterring theft of boat propellers. The invention is comprised of a case for enclosing a boat propeller and a portion of a propeller drive unit. The case has a pair of pivotally connected members which are supported by a horizontal stabilizer fin of a propeller drive unit. The lock lockably connects the case members. One optional feature of the invention are running lights mounted on the sides of the lockable case members. Another optional feature is an electronic alarm which is activated during attempts to steal the propeller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.