Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
March 15, 2011
Patent Application Number
11980285
Date Filed
October 30, 2007
Patent Citations Received
0
Patent Primary Examiner
Patent abstract
An apparatus and method for slowing a vehicle. The method including: disposing a predetermined thickness of collapsible material over a base; disposing a plurality of panels over a top surface of the collapsible material over which the vehicle travels; and selectively either supporting one or more of the plurality of panels or allowing the collapsible material to be compressed under the weight of the vehicle.
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