Rotor blade shaft integrity monitoring system
US4373862A · kind A · utility
27Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1981 |
| Grant date | Feb 15, 1983 |
| Priority date | — |
| Expiry date | Oct 26, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/32
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A helicopter rotor blade to hub arm attachment configured to react centrifugal loads from the blade through a blade cuff, spindle, and elastomeric bearings utilizes a pre-loaded bolt through the spindle for load sharing therewith and a spindle integrity monitoring indicator to provide a visual showing of a deviation from the normal load sharing proportion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.