Weed migration reduction system
US4911663A · kind A · utility
11Cited by
7References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 24, 1989 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Mar 24, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H5/165
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Discussed herein is an arrangement for reducing migration of weeds into an area between the gearcase and the propeller hub of a marine propulsion device. The arrangement is intended to reduce the problem of weed migration when a small hub propeller is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.