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公开(公告)号：US3561160A
公开(公告)日：1971-02-09
申请号：US3561160D
申请日：1969-06-24
Applicant: VAPOR CORP
Inventor： CHAN WILLIAM
CPC classification number: E05F15/655 , E05Y2900/51
Abstract: CREW SWITCH FOR A TRAIN CAR TO ENABLE OPENING AND CLOSING OF AN INDIVIDUAL DOOR FROM EITHER A KEY OPERATED STATION LOCATED OUTSIDE THE CAR OR A KEY OPERATED STATION LOCATED INSIDE THE CAR, AND CLOSING OF A DOOR BY THE MASTER DOOR CONTROL FOLLOWING OPENING OF THAT DOOR AT A REMOTE KEY OPERATED STATION, WHEREIN A RELAY ACTUATED SWITCHING CIRCUIT IS PROVIDED.
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