Patent ID: 8230820

Claim:
A dip cup comprising: a cup for receiving a teat, the cup being connected or connectable to a supply of teat treating liquid including a foaming agent, more than one foaming element for mixing air and the teat treating liquid to produce a desired foam bubble size, and at least one regulator device for setting desired air-to-liquid ratio, the at least one regulator device being selectable or adjustable based on the teat treating liquid so that a specified air to-liquid ratio is achieved, wherein the at least one regulator device comprises: a liquid supporting surface; a transport conduit for transporting the teat treating liquid to said liquid supporting surface; and one or more air passages through said liquid supporting surface, wherein the one or more air passages are open-ended and are arranged circumferentially around the transport conduit and when air passes through said air passages foam is created when said air passes through said liquid on said liquid supporting surface.