Extension trailer

Details Extension trailer Extension trailer

2008-04-18

2010-06-01

Winner, Tony H. (Department: 3611)

Land vehicles

Wheeled

Articulated vehicle

C280S491200

Reexamination Certificate

active

07726680

ABSTRACT:
An extendable trailer comprising wheels carrying a fixed frame, and a fixed support tube carrying a plurality of bearings that support an extendable support tube passing through said fixed support tube. A portion of a trailer hitch supported on the extendable support tube and a fixed pipe carried inside the extendable support tube protecting wires for trailer lights and accessories. The trailer has a first extended position where the tongue is extended and the length of the trailer is the greatest and a second position where the tongue is collapsed back into the trailer.

REFERENCES:
patent: 3989266 (1976-11-01), Foster
patent: 4232990 (1980-11-01), Pierce
patent: 4331346 (1982-05-01), Walters
patent: 4620716 (1986-11-01), Carbone
patent: 4623161 (1986-11-01), Sprague
patent: 4779887 (1988-10-01), Briggs
patent: 5012394 (1991-04-01), Woodward
patent: 5322315 (1994-06-01), Carsten
patent: 5806872 (1998-09-01), Szczypski
patent: 6951346 (2005-10-01), Brackett et al.
patent: 7455310 (2008-11-01), Hyslop

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