Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
May 12, 2009
Patent Application Number
11451670
Date Filed
June 13, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
A pin box assembly is provided for a trailer. The pin box assembly includes a first section having a trailer attachment point, a second section carrying a king pin and a pivot connecting the first and second sections together. In addition the pin box assembly includes a shock absorber having a first end connected to the first section and a second end connected to the second section. Still further, the pin box assembly includes an air spring connected between the first and second sections.
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