Patent ID: 7258389
Filing Date: 2007-08-21
Classification: B60P

Abstract:
1. A synchronization system for a recreational vehicle slide-out in which the recreational vehicle has a fixed portion and a slide-out portion that is moveable relative to the fixed portion of the recreational vehicle so that when the slide-out portion is extended the interior space of the recreational vehicle is increased and when the slide-out portion is retracted, the interior space is reduced, the improvement wherein the synchronization mechanism comprises at least two hydraulic cylinders, said cylinders being mounted spaced apart and mounted so that extension of the slide-out portion results in extension of one of the cylinders and retraction of the other, and retraction of the slide-out portion results in retraction of the one cylinder and extension of the other, wherein each cylinder has a rod side and a bore side, and wherein the rod sides of the cylinders are in fluid communication with one another and the bore sides of the cylinders are in fluid communication with one another.