Kingpin adaptor system
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United States of America Patent
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Dec 6, 2005
Grant Date -
N/A
app pub date -
May 5, 2004
filing date -
May 5, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A kingpin adaptor system which enables a fifth wheel trailer to be connected to a towing vehicle having an upside down kingpin. The kingpin adaptor system includes an inverted fifth wheel head assembly and a kingpin adaptor. The kingpin of the fifth wheel trailer is secured in one end of the kingpin adaptor and the fifth wheel head assembly is mounted at the other end of the kingpin adaptor. The kingpin adaptor system enables a towing vehicle with a kingpin in an upside down position to tow a fifth wheel trailer without greatly increasing the leverage on the pin box of the trailer.
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