Aircraft door counterbalance system
US4086726A · kind A · utility
17Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 22, 1976 |
| Grant date | May 2, 1978 |
| Priority date | — |
| Expiry date | Apr 22, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C1/24
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A counterbalance system for aircraft doors which includes a varying radius pulley mounted to the door and a spring-powered reel to apply a substantially uniform force on the pulley to exert a moment on the pulley which is opposite the moment exerted by the door.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.