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US 7,080,424 B2Granted
Swimming pool cleaner
AssigneeCorrupipe CC
InventorsDieter H F Kallenbach, Manfred Stahle
Life of this patent
Estimating the term…
Abstract
The invention concerns a swimming pool cleaner utilizing the induced flow to a filter plant pump to cause interrupted movement while cleaning the surface over which it operates. The cleaner incorporates a valve with a hollow domed perforated closure member operating in a body with the valve mounted on a stem carrying a rolling diaphragm or a piston subjected intermittently and automatically to the pressure induced by the filter plant pump.
Claims17
A swimming pool cleaner comprising:
- a surface engaging foot having an inlet passage therethrough opening into a forward end of a hollow body integral with the foot and having an outlet through a valve seat adjacent the inlet from the foot and inclined to an axis of the foot;
- a valve including a resilient valve closure member in cooperating relationship with the valve seat and mounted on a disc carrying a valve stem, the valve defining a full area that is the subject in use to a pressure at the outlet, and
- a movable member supported by the valve stem and defining an area less than the full area of the valve that is subject in use to a pressure through a by-pass passage from the outlet to a side of the movable member remote from the valve.
Dependencies are inferred from the claim text.