Spring core
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United States of America Patent
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N/A
Issued Date -
Jun 23, 2005
app pub date -
Oct 4, 2004
filing date -
Oct 15, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A spring core having a plurality of springs wound in screw fashion and arranged next to one another in axially parallel fashion, laterally bounded at each of the top and the bottom by a peripheral frame made of metal, preferably steel, which frame is connected to adjacent springs is so fashioned that each frame is formed from flat steel with a thickness (A) to width (B) ratio of 1:2.2 to 1:3.5, the extension direction of the wide side of the frame corresponding to that of the top or bottom of the spring core.
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