Trailer tow bar lift mechanism
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United States of America Patent
Stats
-
Oct 6, 1992
Grant Date -
N/A
app pub date -
Oct 19, 1990
filing date -
Oct 19, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lift mechanism is provided for lifting the tow bar of a trailer to facilitate connection of the trailer tow bar to a truck's pintle. In the preferred embodiment the lift mechanism includes a bladder which may be connected to a pneumatic system on the trailer. The air bladder is inflated to raise the tow bar above the level of the pintle, facilitating connection of the tow bar to the pintle. Because the tow bar is independent of the lift mechanism, the tow bar has a free travel range greater than the powered travel range.
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