Land vehicles – Wheeled – Articulated vehicle
Reexamination Certificate
2011-05-10
2011-05-10
Hurley, Kevin (Department: 3611)
Land vehicles
Wheeled
Articulated vehicle
C280S491500
Reexamination Certificate
active
07938431
ABSTRACT:
A coupling system that uses a standard receiver box found on most new vehicles to attach a coupler with a universal joint allows full movement between the vehicle and the trailer, including vertical, lateral and rotational motion. The device also incorporated lubrication fittings so that it can be lubricated in the field. The rear of the universal joint has a spindle that extends rearward. The spindle fits through a sleeve that is used to attach the unit to the trailer. The spindle is rotatable secured in the sleeve with a nut and a pin, to provide the 360 degrees of rotation. A limiter plate can be installed to limit the rotation of the trailer in use. The sleeve has two flat side plates that are bolted to the trailer tongue. The unit provides a strong, compact functional hitch system.
REFERENCES:
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patent: 4711461 (1987-12-01), Fromberg
patent: 5531283 (1996-07-01), Austin et al.
patent: 5647604 (1997-07-01), Russell
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patent: 7040645 (2006-05-01), Borneman et al.
patent: 7445226 (2008-11-01), Hahne et al.
patent: 2004/0145147 (2004-07-01), Asbury et al.
Hurley Kevin
Tavella Michael J.
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