Bedding or seating product made with coil springs having unknotted end turns
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United States of America Patent
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Jun 17, 2008
Grant Date -
Dec 14, 2006
app pub date -
Jun 9, 2005
filing date -
Jun 9, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Disclosed herein is a bedding or seating product having a spring core comprising coil springs having unknotted end turns made from high tensile strength wire. In each embodiment, the end turns of the coil springs are generally U-shaped having one leg longer than the other, the legs being joined by an arcuate connector. The springs are oriented in the spring core such that a long leg of one end turn abuts a short leg of the adjacent end turn prior to be wrapped in helical lacing wire. The high tensile wire enables the coil springs to be manufactured using less wire than heretofore possible.
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