Spray delivery device
AssigneeThe Technology Partnership PLC
InventorRobert Gordon Maurice Selby
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Abstract
There is disclosed a device for delivering a fluid spray to a mouth of a user, either directly, or via a flow conductor such as a tube or pipe. The spray device uses a vibrating perforate membrane to create the spray and the vibration of the membrane is controlled in response to input from a flow rate sensor which detects a flow rate through the device or through the flow conductor. There is further disclosed a corresponding method of controlling a spray head in a spray delivery device.
Claims22
A spray delivery device for delivering a fluid spray to a fluid flow conductor, comprising:
- a spray generator,
- a spray controller;
- and
- an air flow sensor;
- wherein the spray generator comprises a perforate membrane and actuation means configured to ultrasonically vibrate the perforate membrane in response to a drive signal from the spray controller, such that vibration of the perforate membrane causes liquid droplets to be ejected from an ejection side of the perforate membrane;
- and
- wherein the flow sensor is configured to provide a flow signal representative of an air flow rate through the flow conductor, such that the spray controller can modulate a spray rate of the spray generator in response to the sensed air flow rate.
A device for delivering a fluid spray to a mouth of a user, either directly, or via a flow conductor such as a tube or pipe, the device comprising:
- a vibratable perforate membrane for generating the spray, wherein the device is configured to control the vibration of the membrane in response to input from a flow rate sensor which detects a flow rate through the device or through the flow conductor.
A method of controlling a spray head in a spray delivery device, the spray head comprising a vibratable perforate membrane for generating a spray, the method comprising:
- receiving a sensed air flow signal representative of an air flow rate through a flow conductor to which the spray head is arranged to deliver a spray, and
- modulating a spray rate of the spray generator in response to the sensed air flow signal.
Dependencies are inferred from the claim text.