초록 ▼

A decorative and educational waterfall device has a substantially continuous film of a liquid, such as water, low viscosity oil or an aqueous solution, extending between spaced guide surfaces. The waterfall comprises a base reservoir in which is mounted an electrical pump. A liquid flow passage is m

A decorative and educational waterfall device has a substantially continuous film of a liquid, such as water, low viscosity oil or an aqueous solution, extending between spaced guide surfaces. The waterfall comprises a base reservoir in which is mounted an electrical pump. A liquid flow passage is mounted to the base and extends to a trough with a lip portion or a tank with a flow orifice from which water flows to form the waterfall between the spaced guide surfaces. The trough or flow orifice is configured to cause the flow of water to be directed outwardly toward the guide surfaces to improve the capability of the liquid to form a continuous film and the adherence of the liquid film to the guide surfaces.

대표청구항 ▼

1. A method of creating a decorative waterfall comprising the steps of:flowing a liquid in a flow path having a centerline and components of flow divergent from the centerline of the flow path; contacting said divergent components of flow with spaced apart guide surfaces so as to form said liquid in

1. A method of creating a decorative waterfall comprising the steps of:flowing a liquid in a flow path having a centerline and components of flow divergent from the centerline of the flow path; contacting said divergent components of flow with spaced apart guide surfaces so as to form said liquid in a substantially continuous film extending between said guide surfaces, said film being substantially free of contact with any surface in the space between the guide surfaces.