Patent ID: 7117670

Claim:
A machine with a control device, comprising: an operating implement; at least one hydraulic operating cylinder for actuating said operating implement, said operating cylinder having a piston space and a rod space; a control block for controlling flow of pressure medium between said piston space and said rod space of operating cylinder and a pressure supply and a tank; at least one pressure accumulator connected in fluid communication to said operating cylinder by a feed line; a fluid operated stop valve mounted in fluid communication between said operating cylinder and said accumulator, said stop valve being a 2/2-way valve having a controllable valve element movable to a transmission position connecting said operating cylinder and said accumulator for dampening movement of said operating cylinder; a fluid operated first switching valve controlled by fluid pressure from said control block and connected to said feed line coupled to said accumulator, said first switching valve being a 2/2-way valve and blocking said feed line when said first switching valve is not actuated, said piston space being in fluid communication with said feed line; and a secondary branch line connecting said stop valve and said accumulator in fluid communication with said feed line, accumulator pressure being applied to said stop valve in a direction of opening and being removed from said stop valve in a direction of closing.