Nozzle for powder delivery with a personal care appliance and method
US10682206B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2016 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Apr 5, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/0241
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A powder delivery nozzle (12) for a personal care appliance (10) comprises a body (28), guidance tip (38), powder chamber (50), and flexible membrane (56). The body (28) includes an air-liquid channel (30) for delivery of air and/or liquid from a proximal end to a distal end thereof. The guidance tip (38), located at the distal end of the body (28), includes an orifice (40) coupled to the air-liquid channel (30) and is configured to expel a pulse of air and/or liquid. The powder chamber (50) is configured for storing a powder (52) and having an air intake port (42) and a powder outlet port (44). The flexible membrane (56) is disposed between the powder chamber (50) and the air-liquid channel (30). Responsive to delivery of a pulse of air and/or liquid via the air-liquid channel (30), a pulse of pressure is applied to the flexible membrane (56) for actuating a release of powder expelled from the powder chamber (50) via the powder outlet port (44). A method and personal care appliance are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.