Propeller nut
US4175605A · kind A · utility
12Cited by
11References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1977 |
| Grant date | Nov 27, 1979 |
| Priority date | — |
| Expiry date | Dec 23, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S411/947
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A self-locking propeller nut, suitable for marine drive trains which involve a great deal of vibration, is disclosed. The nut, which has a nose-cone shaped exterior similar to conventional propeller nuts, is molded integrally of semi-rigid plastic. At its center is a threaded bore wherein the thread diameter tapers narrower into the nut and wherein the thread spacing is slightly different from that of the propeller shaft end. The threaded bore lies in an inner cylindrical body which is recessed and connected to the housing in such a way as to further promote retention of the nut on the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.