Variable rate secondary spring for a primary leaf suspension spring
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United States of America Patent
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Jul 30, 1991
Grant Date -
N/A
app pub date -
Mar 9, 1989
filing date -
Mar 9, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A vehicle spring suspension system comprising a primary spring and a secondary spring attached to the primary spring for aiding the primary spring to restore vehicle height and to carry increasing loads placed on or in the vehicle. The secondary spring is connected at one end by an assembly which can have serveral different arrangments for varying the load supporting function of the secondary spring on the primary spring, depending on the need for more or less load carrying cooperation between the primary and secondary springs.
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