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    Obstruction sensor for pneumatic door operator
    2.
    发明授权
    Obstruction sensor for pneumatic door operator 失效
    气动门操作器阻塞传感器

    公开(公告)号：US3916567A

    公开(公告)日：1975-11-04

    申请号：US50057574

    申请日：1974-08-26

    Applicant: VAPOR CORP

    Inventor： DAUGIRDAS KRISTUPAS

    IPC: E05F15/00 ,  E05F15/06

    CPC classification number: E05F15/56 ,  E05F15/49 ,  E05F15/565 ,  E05Y2900/51

    Abstract: A differential pneumatic door actuator, including pneumatic and electrical controls wherein the actuator is drivingly connected to a door and provided with large and small air cylinders, and a pressure responsive switch monitors the pressure in the large cylinder to actuate a reversing cycle relay when a given pressure is detected during the closing cycle.

    Abstract translation: 差动气动门执行器，包括气动和电气控制，其中致动器驱动地连接到门并设置有大而小的气缸，并且压力响应开关监测大气缸中的压力以在给定的时候启动反向循环继电器 在关闭循环期间检测到压力。

    Door operator
    5.
    发明授权
    Door operator 失效
    门操作员

    公开(公告)号：US3438148A

    公开(公告)日：1969-04-15

    申请号：US3438148D

    申请日：1967-11-06

    Applicant: VAPOR CORP

    Inventor： LYNN ROBERT J ,  DAUGIRDAS KRISTUPAS

    IPC: B61D19/02 ,  E05B47/00 ,  E05B65/20 ,  E05F11/54 ,  E05F15/14 ,  E05F15/00 ,  E05F11/12

    CPC classification number: E05F15/649 ,  E05F15/40 ,  E05Y2201/22 ,  E05Y2201/244 ,  E05Y2201/434 ,  E05Y2201/462 ,  E05Y2201/676 ,  E05Y2201/68 ,  E05Y2400/354 ,  E05Y2400/51 ,  E05Y2800/00 ,  E05Y2800/252 ,  E05Y2900/51

    Abstract: 1,189,950. Control of motors. VAPOR CORP. 27 Sept., 1968 [6 Nov., 1967], No. 46004/68. Heading H2J. [Also in Division E2] In an electric door operator having an output shaft 14 rotatable between open and closed positions of the door, control of the door movement is effected via a cam 43 secured to and rotatable with the shaft and which co-operates with three fixed switches 40, 41 and 42, there additionally being a locking device 24 operable independently of the shaft and which includes a lock releasing solenoid 34. As disclosed, the door motor and solenoid are energized manually to initiate opening, and switch 40 operates at the end of the opening cycle to de-energize the motor, switch 41 operating before this to actuate a door opening cushioning circuit and to deenergize the solenoid. Switch 42 operates near the end of the closing cycle which is initiated manually to de-energize the motor and to actuate a door closing cushioning circuit. Cushioning is effected by adding a resistance to the motor circuit.

    DOOR SYSTEM FOR A RAILWAY CAR
    8.
    发明专利
    DOOR SYSTEM FOR A RAILWAY CAR 未知

    公开(公告)号：CA966726A

    公开(公告)日：1975-04-29

    申请号：CA168068

    申请日：1973-04-06

    Applicant: VAPOR CORP

    Inventor： GRITCHEN RALPH A ,  DAUGIRDAS KRISTUPAS ,  MASIOKAS BRUNO ,  TOWNSEND RICHARD H

    IPC: B61D23/00 ,  B61D23/02

    Abstract: A door system for a railway passenger car which accommodates both high and low level boarding platforms includes a sliding upper door for both high and low level boarding, a segmented lower door immediately below the upper door for low level boarding, and a staircase connecting the floor of the car to the lower door opening. The staircase is covered by a segmented sliding floor panel during high level boarding, and the sliding floor panel and lower door are retracted to fully enclosed positions under the staircase during low level boarding.

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