Gradual-release dosing device and seal of a domestic-use apparatus
US9650739B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2013 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Mar 30, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Gradual-release dosing device for at least one substance in a domestic-use apparatus comprises the presence of a water based work fluid, characterized in that it comprises a casing (2) within which a plurality of doses of said substances (3) is contained, necessary for the corresponding plurality of operation cycles of said apparatus. Said casing (2) being at least partly defined by a material perrreable to said work fluid and capable of releasing at least a dose of said substance (3) at each operation cycle of the apparatus. The substance comprises at least one washing-active, dishwashing-active or cleaning-active preparation from the group consisting of surfactants, builders, water softening agents, zeolites, silicates, polymers, carbonates, carboxylates, sulphonates, bleaching agents, bleach activators, bleach stabilizers, bleach catalysts, cobuilders, alkalizing agents, acidifying agents, redeposition inhibitors, dyes, fragrances, optical is brighteners, UV filters, fabric softeners, and rinse agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.