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2 081 771

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C1

(51)

IPC

(21) (22)

Application

93050528/11, 1993-10-21

(22)

Actual filing date

1993-10-21

(45)

Published

1997-06-20

(72)

Inventor

Grachev G.N.Koljuzhnyj K.O.Lipovetskij Ju.A.

(73)

Holder

Gosudarstvennyj Proektno-Izyskatel'Skij Institut

TIME DELAY DEVICE FOR ELECTRIC CENTRALIZED CONTROL OF POINTS AND SIGNALS Russian patent published in 1997 - IPC

Abstract RU 2081771 C1

FIELD: railway transport; signalling. SUBSTANCE: device has time delay holding relay, threshold element, time setting chain, pulse generator, amplifiers, inverter, switch, thyristor optrons, transformer, rectifier and output relay. Winding of time delay holding relay is connected through inverter to optron photothyristor. Output relay is connected to light emitting diode through amplifier, transformer and rectifier. EFFECT: improved reliability of operation. 1 dwg

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RU 2 081 771 C1

Authors

Grachev G.N.

Koljuzhnyj K.O.

Lipovetskij Ju.A.

Dates

1997-06-20—Published

1993-10-21—Filed

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