Spring device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6102378
SERIAL NO

09091037

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A spring device arrangement in particular for the area of railway vehicles, in particular for spring suspension between a bogie and coach body, in which a spring device is located between a supporting plate and a substructure includes two spring systems connected in parallel. Each spring system comprises three parallel springs, the spring being an air spring or hydropneumatic spring comprising a bellows of elastomer material which connects the supporting plate to the upper part of a spring-support piston, the springs of the spring system being interconnected in a pressure-equalizing manner by an overflow duct. The spring is disposed outside the spring and extends from the supporting plate to the substructure, and the spring is installed in the support piston of the spring, a force-transmitting pressure piston simultaneously being used. The lower part of the pressure piston rests on the spring and its upper part, which is provided with an end stop, projects into the interior of the spring, the pressure piston having inside the region of contact with the support piston a vertical slide surface and a stepped stop which produces pretension in conjunction with the spring.

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Patent Owner(s)

Patent OwnerAddress
PHOENIX TRAFFIC TECHNOLOGY GMBHHANNOVERSCHE STRASSE 88 D-21079 HAMBURG

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gieseler, Eckhard Freudenberg, DE 1 22
Lambrecht, Dirk Hamburg, DE 2 28

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