Device for packaging and dispensing a fluid product in metered quantities
US10864539B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2020 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Mar 4, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1047
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A device for packaging and dispensing a generally fluid product includes a dispensing head placed on top of an external body into which is inserted an internal container that forms a reservoir and is suitable for rigid attachment to a metering assembly of the head. The metering assembly, of the airless type, includes a metering pump that is surrounded and supported by a closing element in direct contact with the upper end of the container in a leaktight annular connection area. A ring which surrounds the connection area covers an internal peripheral volume defined between the body and the container. A wall that is movable towards the pump inlet provides a leaktight separation and maintains an identical pressure between the product in the reservoir and the air in the peripheral volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.