Abstract: A spray device comprises a container for detergent, a spray head for mounting on the container, and a liquid supply for transferring liquid from the container to the spray head. The spray head comprises: a body, a chamber in communication with the atmosphere, an elongate outlet bore extending to an outlet of the body, a detergent inlet aperture in a surface of the chamber, communicating with the liquid supply for communication with the interior of the container, and a water inlet for the chamber. The water inlet is configured to direct a jet of water over the detergent inlet aperture towards the outlet bore. Passage of the water jet over the inlet aperture causes detergent from the container to be drawn into the chamber. The inner surface of the foam generating outlet bore is formed as an aerating surface. Spray heads for use with such spray devices are also disclosed.

Abstract: A spray device (1) intended for use in producing so-called “snow-foam” is disclosed. The device comprises a container (2) for holding detergent, a spray head (4) for mounting on the container (2), and a liquid supply arrangement (10) for transferring liquid from the container (2) to the spray head (4). The spray head (4) comprises: a body (5), a chamber (12) formed in the body (5) and being in communication with the atmosphere, an elongate foam generating outlet bore (8) formed in the body (5) and extending in a first direction from the chamber (12) to an outlet of the body (5), a detergent inlet aperture in a surface of the chamber (12), said inlet aperture communicating with the liquid supply arrangement (10) and being for communication with the interior of the container (2), and a water inlet for the chamber (12).