SAFETY VALVE OF VOLTAGE SURGE PROTECTIVE DEVICE Russian patent published in 2000 - IPC

Abstract RU 2148883 C1

FIELD: electrical engineering; protection of DC and ac electrical equipment insulation. SUBSTANCE: safety valve has diaphragm mounted on outlet bore flange of device case which is separated from flange by flexible annular sealing gasket and held tight against it by means of hold- down ring, as well as annular slot made in wall of mentioned outlet bore to receive snap ring that holds mentioned hold-down ring in position. Edge of outlet bore flange has annular boss whose height is not over two thirds of height of annular sealing ring. EFFECT: facilitated manufacture, improved reliability of valve. 2 dwg

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RU 2 148 883 C1

Authors

Vitkin A.L.

Krengauz Eh.B.

Dates

2000-05-10—Published

1997-05-28—Filed