Fluid dispenser
US11612907B2 · kind B2 · utility
0Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2019 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Apr 26, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2209/133
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dispenser capable of dispensing a fluid via a vertically-oriented piezo device comprises a reservoir in the form of a replaceable cartridge containing a fluid to be dispensed, a planar piezo element having front and rear surfaces and which in use is oriented with its plane vertical and which is drivable to vibrate and thereby dispense fluid from the front surface, and a pump to draw a predetermined amount, or dose, of fluid from the reservoir and to drive the dose of fluid at a predetermined above-atmospheric pressure to the rear surface of the piezo element for dispensing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.