Fragrance dispenser with user-selectable release rate
US11324849B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2017 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Apr 15, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2209/16
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fragrance dispenser and a corresponding method of dispensing fragrance, comprising at least one receptacle having a major open end, with a porous diffuser layer occlusively overlying the major open end of the receptacle, wherein at least a sectional area of the porous diffuser layer is removable to uncover a portion of the receptacle to control of the release rate of a fragrance source. The fragrance dispenser may comprise a plurality of receptacles and the porous diffuser layer comprises a plurality of sections that are individually removable to uncover each receptacle. The fragrance dispenser could comprise a removable cover sheet that is peelably detachable from the porous diffuser layer. Porous diffuser layer could be an organic polymeric nonwoven web and/or the receptacle is made of a thermoplastic organic polymeric resin. The fragrance dispenser may further comprise a secondary diffuser layer that has 50% more permeability that the porous diffuser layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.