Package effervescible composition
US5252312A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1992 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Sep 30, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/87
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Disclosed is a packaged effervescible composition which generates fresh effervescence at the time of use. The composition comprises a first liquid component including hydrogen peroxide as a functional ingredient and a second liquid component including sodium bicarbonate as a functional ingredient. The package comprises a container for the components and a closure system comprising an inclined crown portion, at least two pouring spouts extending upwardly from the upper surface of the crown and a cover for securement to the crown portion, the cover being provided with depending plugs to close the closure. Preferably each pouring spout is provided with a vent opening which allows smaller through openings in the spouts. The through openings can thus be positioned closer together on the crown. This gives the advantage that the package can be used dispensing liquids into a small container such as a mouthwash cup with controlled pouring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.