Hydraulic connection device

Abstract

A valve assembly is useful for providing ports for connecting hydraulic circuits when the need arises. When an auxiliary circuit is being connected to the valve assembly, the circuit already connected may develop a differential fluid pressure drop. The subject valve assembly includes an inlet, a first outlet and a second outlet. A shut-off valve is positioned between the inlet and the first outlet. The shut-off valve must be in the closed position before the auxiliary circuit can be connected to the second outlet of the valve assembly. The shut-off valve includes a handle having an extending portion which overlies the second outlet when the shut-off valve is in the open position thus preventing the connection of circuit to the second outlet. This arrangement of components prevents connecting the auxiliary circuit to the valve assembly when the shut-off valve is in the open position.

We claim: 
     
       1. A hydraulic system for controlling the implements of a vehicle, the hydraulic system includes a valve assembly having an inlet, a first outlet for connecting a first circuit and a second outlet adapted for connecting a second circuit, comprising: a valve body having a shut-off valve positioned between the inlet and the first outlet, the shut-off valve having a first position to allow fluid to flow from the inlet to the first outlet and a second position to prevent fluid flow from the first circuit when the second circuit is being connected to the second outlet, and   a handle attached to the shut-off valve, the handle includes an extending portion which overlies the second outlet when the shut-off valve is in the first position.