公开(公告)号：US3857197A

公开(公告)日：1974-12-31

申请号：US30490772

申请日：1972-11-09

Applicant: VAPOR CORP

Inventor： REDDY R ,  ROTH C ,  RAGO R ,  DAUGIRDAS K

IPC: B61D19/02 ,  E05F11/54 ,  E05F15/14 ,  E05B47/00

CPC classification number: E05F15/649 ,  E05F15/40 ,  E05Y2201/22 ,  E05Y2201/244 ,  E05Y2201/434 ,  E05Y2201/608 ,  E05Y2201/676 ,  E05Y2201/68 ,  E05Y2400/354 ,  E05Y2400/51 ,  E05Y2800/00 ,  E05Y2800/116 ,  E05Y2800/25 ,  E05Y2800/252 ,  E05Y2900/51

Abstract: Door operator for a transit vehicle including a primary linkage device for driving the door between open and closed positions and for monitoring door position and a secondary linkage device for monitoring door position. Additionally, a device is provided for locking the door in closed position in association with the secondary linkage device.

Abstract translation: 一种运输车辆的门操作者，包括用于在打开和关闭位置之间驱动门并用于监控门位置的主要联动装置和用于监控门位置的辅助联动装置。 此外，提供了一种装置，用于将门与辅助联动装置相关联地锁定在关闭位置。

公开(公告)号：US3724396A

公开(公告)日：1973-04-03

申请号：US3724396D

申请日：1971-02-18

Applicant: VAPOR CORP

Inventor： ROTH C

IPC: B61D23/02 ,  B61D19/00 ,  B61D23/00

CPC classification number: B61D23/02

Abstract: A door system for a railway passenger vehicle to enable both high and low platform loading of passengers, including a pair of bi-parting doors to be opened for high-level loading, and a low door immediately below the bi-parting doors to be opened with the bi-parting doors for low level loading, and a stair unit coacting with the low door accessible through a trap door, and means for retracting the low door within the car structure behind the stair unit.