Importance

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Abstract

A fluid delivery device comprises an inlet, a plurality of outlets, a first chamber suppling fluid to a first selection of the plurality of outlets, a second chamber suppling fluid to a second selection of the plurality of outlets, and a switching device between the inlet and the two or more chambers. The switching device has a first operating mode in which there is a first fluid flow rate from the inlet to the first chamber and a second operating mode in which there is a second fluid flow rate from the inlet to the second chamber. In the first operating mode, a fluid flow rate from the inlet to the second chamber is not equal to the second fluid flow rate. The switching device cycles between the first operating mode and the second operating mode.

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First Claim