Locking apparatus for a hydromechanical spring energy store drive for a gas-insulated switchgear assembly

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9791044
APP PUB NO 20140298983A1
SERIAL NO

14244233

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Abstract

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A locking apparatus for a hydromechanical spring energy store drive for actuating a medium-voltage or high-voltage circuit breaker is disclosed, the spring energy store drive includes a working piston, which is guided in an axial cutout in a pressure housing or working cylinder, and a spring energy store arrangement. The locking apparatus includes a first pressure region and a second pressure region, which are under elevated pressure when the circuit breaker is closed, and a third pressure region, which is unpressurized. The latching bolt can be arranged perpendicular to the working piston, via a latching apparatus, which can be arranged on a side of the latching bolt, which is to point towards the working piston and via the spring energy store arrangement, which is to be pushed away from the working piston.

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Patent Owner(s)

Patent OwnerAddress
HITACHI ENERGY LTD8050 ZÜRICH

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brenneis, Thomas Mainaschaff, DE 5 4
Klose, Thomas Eidengesäss, DE 19 166
Knospe, Jörg Bruchköbel, DE 6 7
Sticker, Claus Grosskrotzenburg, DE 2 0

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