Arrangement for fabricating double conical springs

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United States of America Patent

PATENT NO 4424695
SERIAL NO

06205950

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Abstract

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An arrangement for producing double conical springs from heated rod-shaped material, in which one side of a conical-shaped spring is formed with a cylindrical end corresponding to the largest winding diameter. The end is then shaped to a conical form. After being transferred from a spring winding station to an end roll-in unit, the spring is clamped, and a shaping member is inserted radially into the spring, and moved against a stop. With the aid of a roll-in head, the cylindrical spring end is conically formed. After the shaping member is radially removed from the spring, the latter is released and transported to a hardening process.

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Patent Owner(s)

Patent OwnerAddress
ESTEL HOECHST WERKE AKTIENGESELLSCHAFTEBERHARDSTRASSE 12 D-4600 DORTMUND 1 WEST

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Adolf, Gunter Hagen, DE 1 17
Kirchhoff, Ernst Hagen, DE 3 48
Rander, Alfred Iserlohn, DE 1 17

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