Abstract: A teat foam ring connected to a supply of pressurized cleaning solution and a supply of pressurized air. The teat foam ring includes a cleaning solution inlet and defines a cleaning solution channel and an extrusion slot. Cleaning solution and compressed air flow into the ring through the cleaning solution inlet and into a cleaning solution channel. The cleaning solution is expelled from the ring through the extrusion slot as a foam. The extrusion slot extends upwardly and inwardly so that the foam forms a cone supported on an upper surface of the ring over the central opening in the ring. The teat foam ring may include or be connected to a mixing chamber for transforming the cleaning solution and the compressed gas into a foam. The mixing chamber may be defined within the inlet of the teat foam ring. A mixing medium may be located in the mixing chamber.

Abstract: A hand-operated, portable sprayer to selectively produce a foamy effluent spray, rather than only the purely liquid spray provided by conventional sprayers. The sprayer includes segregated air and liquid delivery systems that separately supply air and liquid from the pressurized tank reservoir to a mixing chamber. Foaming may be facilitated by incorporating a mixing medium in or downstream from the mixing chamber. A flow controller is provided to control the flow of output from the sprayer. The flow controller and the mixing chamber may be incorporated into a single component. A valve may be included in the air delivery line to allow the users to attenuate the air flow rate to the mixing chamber, thereby permitting the user to select the consistency of the effluent foam according to the particular application.