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US 2022/0176708 A1Published application
Circulation path for bubbler
AssigneeHewlett-Packard Development Company, L.P.
InventorsBoon Bing Ng, Anthony M. Fuller, Michael W. Cumbie
Life of this patent
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Abstract
In some examples, a fluid dispensing device includes an inner chamber to contain a fluid. The fluid dispensing device further includes an orifice layer comprising a bubbler orifice to draw air through a bubbler chamber to the inner chamber responsive to a pressure satisfying a criterion, the bubbler chamber being adjacent the bubbler orifice. A circulation path circulates fluid drawn through a feed hole through the bubbler chamber.
Claims15
A fluid dispensing device comprising:
- an inner chamber to contain a fluid;
- an orifice layer comprising a bubbler orifice to draw air through a bubbler chamber to the inner chamber responsive to a pressure satisfying a criterion, the bubbler chamber being adjacent the bubbler orifice;
- and
- a circulation path to circulate fluid drawn through a feed hole through the bubbler chamber.
1 more element
A fluid dispensing device comprising:
- an inner chamber to contain a fluid;
- a fluidic actuator;
- a chamber layer comprising a nozzle chamber and a bubbler chamber;
- an orifice layer comprising:
- a nozzle orifice to dispense fluid in the nozzle chamber through the nozzle orifice responsive to actuation of the fluidic actuator, and
- a bubbler orifice to draw air through the bubbler chamber to the inner chamber responsive to a pressure satisfying a criterion;
- and
- a circulation path to circulate fluid drawn through a feed hole through the bubbler chamber adjacent the bubbler orifice, the circulation path to refresh the fluid in the bubbler chamber.
5 more elements
A method of forming a fluid dispensing device, comprising:
- forming, in an orifice layer, a bubbler orifice to draw air through a bubbler chamber to an inner chamber containing fluid, responsive to a pressure satisfying a criterion, the bubbler chamber being adjacent the bubbler orifice;
- and
- forming a circulation path to circulate fluid drawn through a feed hole through the bubbler chamber.
Dependencies are inferred from the claim text.