Patent ID: 8439282
Filing Date: 2013-05-14
Classification: A01G,Y10T

Abstract:
1. An irrigation apparatus comprising: a housing having at least one inlet, at least one outlet and a seat wall defining a port intermediate the at least one inlet and the at least one outlet, the seat wall having an upstream facing side and a downstream facing side, a regulator seat at the port on the upstream facing side and a valve seat at the port on the downstream facing side; an elongated path in the housing between the at least one inlet and the at least one outlet; a flow valve having a valve member having a first position engaging the valve seat for preventing flow from the at least one inlet to the elongated path when incoming flow pressure is below a predetermined level and a second position being spaced from the valve seat for permitting flow from the at least one inlet to the elongated path when the incoming flow pressure is above a predetermined level; a flow regulator upstream of the flow valve and the elongated path and capable of being spaced varying distances from the regulator seat to regulate the flow to the elongated path when the incoming flow pressure is above the predetermined level and being dependent on the incoming flow pressure; a common poppet for the flow regulator and the flow valve; a layer disposed in the housing downstream of the flow valve between the at least one inlet and the at least one outlet, the layer having a stop portion configured to restrict movement of the poppet and at least one flow passage that forms at least a part of the elongated path; and wherein the flow regulator and the elongated path cause a pressure drop between the at least one inlet and the at least one outlet.