Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 15, 2007
Patent Application Number
11248102
Date Filed
October 12, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
A dual tube shock absorber includes a spool valve located between the upper working chamber and the reserve chamber. The spool valve moves with the piston rod to open and close a flow path between the upper working chamber and the reserve chamber. This provides a low damping characteristic for small movements of the piston rod which changes to a high damping characteristic for larger movement of the piston rod.
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