Land vehicles – Wheeled – Articulated vehicle
Reexamination Certificate
2007-05-22
2007-05-22
Morris, Lesley D. (Department: 3611)
Land vehicles
Wheeled
Articulated vehicle
C280S491100, C280S491500
Reexamination Certificate
active
11078978
ABSTRACT:
A trailer ball raising and lowering apparatus includes vehicle attachment means, a first hitch-support unit connected to the vehicle attachment means, a raisable and lowerable second hitch-support unit, continuously movable first-to-second connector means connected between the first hitch-support unit and the raisable and lowerable second hitch-support unit, unit-to-unit lock means for locking the raisable and lowerable second hitch-support unit to the first hitch-support unit, and a hitch member connected to the raisable and lowerable second hitch-support unit. An important feature of the present invention is that the interconnection between a trailer-mounted ball connector and a hitch ball unit on the motor vehicle is not disconnected during raising and lowering of the respective ends of the trailer.
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Arce-Diaz Marlon
Morris Lesley D.
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