Cartridges containing substances for beverage preparation
US5897899A · kind A · utility
273Cited by
15References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1994 |
| Grant date | Apr 27, 1999 |
| Priority date | — |
| Expiry date | Feb 28, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/3695
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A sealed cartridge, which need have no marks for weakening and inside which, no filter is needed, contains a substance, such as roasted and ground coffee, for being extracted under pressure. The cartridge has a cup having a base and a lateral wall extending from the base to a lip which extends laterally away from the wall about a cup opening, and the cartridge has a cover sealed to the lip to cover the opening. Either the cover or the base provides a tear face which is torn under stress during extraction of the substance under pressure for preparation of a beverage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.