Reduced weight fifth wheel assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 13, 2001
Grant Date -
N/A
app pub date -
Oct 6, 1998
filing date -
Dec 20, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A reduced weight fifth wheel generally mountable on a tractor for coupling between a tractor and a trailer, which fifth wheel has the approximately the same bearing surface area, a more continuous surface area by elimination of a lever-bar pin port in the bearing surface, thinner support ribs and smaller fillets, a shorter longitudinal length with a wider kingpin receiving slot for receipt of a trailer kingpin, with a locking-jaw mechanism having a redesigned lever-bar pin and pin-receiving port to enable reduction of the weight and to enhance production casting practices, which fifth wheel further encompasses lateral support ribs at the plate outer perimeter and rearward of the mounting brackets to define support pockets ahead of the engaging ramps to avoid lateral deflection and deformation of the plate at vertical loading.
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