Retractable helicopter rotor
US5149013A · kind A · utility
8Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 1991 |
| Grant date | Sep 22, 1992 |
| Priority date | — |
| Expiry date | May 16, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/32
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A retractable helicopter rotor in which the rotor and its blades, the swashplate and the pitch change rods are retracted and extended as a unit during the helicopter rotor retraction/extension mode of operation, wherein the connection between the rotor support system and the fuselage constitutes a single interface between overlapping circumferentially extending flanges of each, and with the bolts joining those flanges being loaded in compression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.