Mineral composite beverage brewing cup and cartridge
US8474368B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2009 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Jul 11, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/0673
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A beverage filter cartridge having a cup, a filter, a lid and at least one beverage ingredient is provided where the cup and lid are sealed together to form an interior chamber which is separated into a first and second compartments by the filter, which is preferably basket or cone shaped, and a beverage ingredient such as coffee is contained inside first compartment, and at least one of the cup, lid and filter contains calcium carbonate in an amount effective to either improve the ability of beverage makers to pierce the cup or to provide a means for the cartridge to absorb CO2 emitted by the ingredient thereby reducing the hold time to packing and reducing the number of defective cartridges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.