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Document Number
US Patent 7469918
Issued Date
December 30, 2008
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Abstract
A kingpin is provided for use on a trailer in a system with the tractor linked to a trailer. The kingpin includes a shank and a selectively deformable head, whereby during a trailer rollover event, the kingpin head deforms allowing the link between the tractor and trailer to be broken and the tractor to remain upright.
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Number of Claims:
12
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Owner
Published
December 30, 2008
Application Number
10/870,831
Filed
June 17, 2004
US Classification
280/433  
Int'l Classification
B62D   53/06   (20060101)  
Examiner
Attorney/Law Firm
Parent Case
This invention claims the priority of provisional application 60/479,058 filed on Jun. 18, 2003, the entirety of which is incorporated herein.
USPTO Field of Search
280/433   280/423.1   280/432   280/434  
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