Vehicle passenger boarding system
US5305486A · kind A · utility
26Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1993 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Jun 24, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S414/134
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A ramp stowable beneath the floor of a vehicle is normally power driven between retracted and extended positions. The drive, or propelling, mechanism for the ramp provides for the ramp to be manually disconnected from the propelling mechanism for manual extension and retraction in the event of a power failure in the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.