Container for packaging a liquid to be dispensed in drops, reversibly deformed by air input
US7971755B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 24, 2005 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Aug 29, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D1/32
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention concerns a container for packaging a liquid (1) to be dispensed in drops. The container is reversibly deformable by air input and is equipped with a head (3) for dispensing liquid through a nozzle (5). The dispensing head (3) comprises a recessed body (4) which is nested inside a neck (10) of the container and which holds a hydrophobic microporous pad (8) arranged upstream of a chamber (9). Chamber (9) is provided with an air reservoir for preventing the liquid from passing through the microporous pad (8) between two liquid dispensing operations, when the nozzle (5) is sealingly obstructed with a cap (6), and for drying a partly hydrophilic and hydrophobic filtering membrane (7) arranged in the dispensing head (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.