Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jeffrey Lloyd0
Date of Patent
January 2, 2007
0Patent Application Number
107725240
Date Filed
February 5, 2004
0Patent Primary Examiner
Patent abstract
An air spring assembly includes a primary airbag mounted to a piston air bag such that the piston airbag provides a rolling surface for the primary airbag. A change in the piston airbag pressure changes the effective rate of the primary air spring. A relatively small change in the piston airbag volume provides a change in the spring rate of air spring assembly as the diameter of the rolloff surface is selectively modified.
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