Mass transit vehicle door control apparatus
US4142326A · kind A · utility
23Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 1977 |
| Grant date | Mar 6, 1979 |
| Priority date | — |
| Expiry date | Mar 17, 1997 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/51
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
There is disclosed a motion control and locking apparatus for the passenger entry and exit doors of a mass transit vehicle, which passenger entry and exit doors are desired to be locked when the vehicle is moving between stations and are desired to be unlocked only when the vehicle has stopped at the desired location for passenger entry and exit within a station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.