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US 12,472,525 B2Granted
Stepped cylindrical piezoelectric transducer
AssigneeAUT Ventures Limited
InventorsAhmed Al-Jumaily, Ata Meshkinzar
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Abstract
A cylindrical piezoelectric transducer is described the cylindrical piezoelectric transducer comprising: a tube having inner and outer surfaces and a first inner diameter, first outer diameter and a first thickness; at least one stepped band having a stepped inner diameter, stepped outer diameter and stepped thickness and wherein the stepped thickness is less than the first thickness and the at least one stepped bands are spaced along the length of the tube and alternate with bands of the first thickness; and conductive material disposed over the inner and outer surfaces of the tube.
Claims20
A method of atomizing a liquid comprising using a droplet generator and a cylindrical piezoelectric transducer, the cylindrical piezoelectric transducer comprising:
- a tube having inner and outer surfaces and a first inner diameter, first outer diameter and a first thickness;
- at least one stepped band having a stepped inner diameter, stepped outer diameter and stepped thickness and wherein the stepped thickness is less than the first thickness and the at least one stepped band is spaced along the length of the tube;
- and
- a conductive layer disposed over the inner and outer surfaces of the tube, the method further comprising feeding a plurality of liquid droplets of a first size from the droplet generator through the cylindrical piezoelectric transducer to reduce the size of the plurality of liquid droplets of the first size, wherein the plurality of liquid droplets of the first size are reduced in size.
1 more element
A humidifier comprising:
- a droplet generator, the droplet generator creating a plurality of droplets of a first size;
- and
- a cylindrical piezoelectric transducer, the cylindrical piezoelectric transducer comprising:
- a tube having inner and outer surfaces and a first inner diameter, first outer diameter and a first thickness;
- at least one stepped band having a stepped inner diameter, stepped outer diameter and stepped thickness and wherein the stepped thickness is less than the first thickness and the at least one stepped band is spaced along the length of the tube;
- and
- a conductive layer disposed over the inner and outer surfaces of the tube,
- wherein the plurality of droplets of the first size from the droplet generator are fed through the cylindrical piezoelectric transducer and the plurality of droplets of the first size are reduced in size.
5 more elements
A method of atomizing a liquid comprising using a droplet generator and a cylindrical piezoelectric transducer, the cylindrical piezoelectric transducer comprising:
- a tube having inner and outer surfaces and a first inner diameter, first outer diameter and a first thickness;
- at least one stepped band having a stepped inner diameter, stepped outer diameter and stepped thickness and wherein at least one of the stepped inner diameter, stepped outer diameter and stepped thickness differ from the respective first inner diameter, first outer diameter and first thickness;
- and
- a conductive layer disposed over the inner and outer surfaces of the tube, the method further comprising feeding a plurality of liquid droplets of a first size from the droplet generator through the cylindrical piezoelectric transducer to reduce the size of the plurality of liquid droplets of the first size, wherein the plurality of liquid droplets of the first size are reduced in size.
1 more element
A humidifier comprising:
- a droplet generator, the droplet generator creating a plurality of droplets of a first size;
- and
- a cylindrical piezoelectric transducer, the cylindrical piezoelectric transducer comprising:
- a tube having inner and outer surfaces and a first inner diameter, first outer diameter and a first thickness;
- at least one stepped band having a stepped inner diameter, stepped outer diameter and stepped thickness and wherein at least one of the stepped inner diameter, stepped outer diameter and stepped thickness differ from the respective first inner diameter, first outer diameter and first thickness;
- and
- a conductive layer disposed over the inner and outer surfaces of the tube,
- wherein the plurality of droplets of the first size from the droplet generator are fed through the cylindrical piezoelectric transducer and the plurality of droplets of the first size are reduced in size.
5 more elements
An apparatus for creating a plurality of liquid droplets comprising:
- a droplet generator, the droplet generator creating a plurality of liquid droplets of a first size;
- and
- a cylindrical piezoelectric transducer comprising:
- a tube having inner and outer surfaces and a first inner diameter, first outer diameter and a first thickness;
- at least one stepped band having a stepped inner diameter, stepped outer diameter and stepped thickness and wherein the stepped thickness is less than the first thickness and the at least one stepped band is spaced along the length of the tube;
- and
- a conductive layer disposed over the inner and outer surfaces of the tube, wherein the plurality of liquid droplets of the first size from the droplet generator are fed through the cylindrical piezoelectric transducer and the plurality of liquid droplets of the first size are reduced in size.
4 more elements
An apparatus for creating a plurality of liquid droplets comprising:
- a droplet generator, the droplet generator creating a plurality of liquid droplets of a first size;
- and
- a cylindrical piezoelectric transducer comprising:
- a tube having inner and outer surfaces and a first inner diameter, first outer diameter and a first thickness;
- at least one stepped band having a stepped inner diameter, stepped outer diameter and stepped thickness and wherein at least one of the stepped inner diameter, stepped outer diameter and stepped thickness differ from the respective first inner diameter, first outer diameter and first thickness;
- and
- a conductive layer disposed over the inner and outer surfaces of the tube, wherein the plurality of liquid droplets of the first size from the droplet generator are fed through the cylindrical piezoelectric transducer and the plurality of liquid droplets of the first size are reduced in size.
4 more elements
Dependencies are inferred from the claim text.