Extendable trailer

Details Extendable trailer Extendable trailer

2006-01-10

2006-01-10

Hurley, Kevin (Department: 3611)

Land vehicles

Wheeled

Extensible

C280S482000, C114S024000

Reexamination Certificate

active

06983953

ABSTRACT:
A trailer having a having a hydraulic boom having a rear end with a crane for holding trees and an attachment for connecting the trailer to a truck on the front end. The trailer also has, at the extendable end, hydraulicly controlled supports for leveling the trailer at the front end. A process for moving the trailer having a front and a rear and a center of gravity between the front and the rear includes (1) attaching the trailer front to the truck trailer mount; (2) moving the trailer into position with the truck; (3) activating a hydraulic power source independent of the trailer; (4) lifting the front of the trailer from the truck trailer mount using two balanced hydraulic pistons on either side of the trailer and forward of the center of gravity of the trailer powered by the hydraulic power source.

REFERENCES:
patent: 3680836 (1972-08-01), Amelotte et al.
patent: 4061309 (1977-12-01), Hanser
patent: 4746133 (1988-05-01), Hanser et al.
patent: 5960662 (1999-10-01), Morello
patent: 6089603 (2000-07-01), Ackley
patent: 6332627 (2001-12-01), Damron
patent: 6659503 (2003-12-01), Damron

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