Dispenser for liquid, cream or gel with a filter
US6244472A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 28, 1999 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Oct 28, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/0008
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dispenser for substances packaged in the form of a liquid, cream, or gel, and particularly intended for cosmetic, dermatological, pharmaceutical, ophthalmic, or perfumery applications. The dispenser includes a tank (1) containing the substance (2) and is connected at one of its ends to a head provided with a pump (4) fitted with a fixing collar (3) and with a controlled shutter device for the vent (40) formed on the body (41) of the pump (4). The shutter device includes an air-permeable diffuser element (6) containing non-migratory agents for bacteriological and/or chemical treatment of air by contact. The diffuser element (6) is engaged on the pump body (41) and held by leakproof peripheral radial clamping of at least one annular zone, and by its top portion being engaged in the fixing collar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.