Patent ID: 6257264
Filing Date: 2001-07-10
Classification: A01G,Y10T

Abstract:
A method for providing on-off control of a fluid system having at least two outlets using a single electrical signal, comprising:(a) supplying the electrical signal to an electrically actuated control valve(a1) to cause the control valve to block a fluid from an inlet of a hydraulically actuated toggle valve for at least a predetermined time, to thereby cause the toggle valve to place the inlet in fluid communication with a first outlet of the toggle valve, and then(a2) to cause the control valve to supply a fluid to the inlet of the toggle valve for a first period of time, to thereby cause the toggle valve to supply the fluid at the first outlet for the first period of time; and(b) supplying the electrical signal to the control valve(b1) to cause the control valve to block the fluid from the inlet of the toggle valve for less than the predetermined time, to thereby cause the toggle valve to place the inlet in fluid communication with a second outlet of the toggle valve, and then(b2) to cause the control valve to supply the fluid to the inlet of the toggle valve for a second period of time, to thereby cause the toggle valve to supply the fluid at the second outlet for the second period of time.