Method of making an easily removed marine propeller
US4993151A · kind A · utility
3Cited by
13References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1990 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | Apr 25, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49995
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a marine drive having a tapered propeller shaft section (14) and a tapered propeller hub (20, 60) matching and fitting therearound in flush contact, a relief inner diameter section (28, 66) is provided in the hub, spaced from the propeller shaft, to prevent flush contact and facilitate removal of the propeller hub from the propeller shaft. In a further embodiment, a thrust collar (50) with a substantially steeper tapered section (56) further facilitates removal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.