Patent attributes
The PRO-RAMP professional adjustable ramp system of this invention comprises a lower horizontal panel, hinged to a second angularly adjustable panel by a vertical plane. Two embodiments are disclosed. In the preferred embodiment the vertical member is adjusted by concentric tubular members and locking in position by a pair of pins through aligned holes. In the alternate embodiment the inside surfaces of the two panels are notched such that there is no possibility of slippage of the vertical pane and thus of accidental collapse of the plane. A variation of alternate embodiment employs a collapsible truss support instead of the vertical plane. The second horizontal plane may be sectionalized into plurality of planes such that a user can experience different gradients in a single ramp.
