Cartridge for beverage making
US5108768A · kind A · utility
Inventor
Key dates
| Filing date | Nov 25, 1988 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Nov 25, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D85/8043
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A cartridge of cup like shape having a substantially impervious frusta-conical wall provided with a first circumferential seal adjacent the open mouth of the cup and a second circumferential seal spaced toward the bottom of the cup. The bottom is perforated and is sealed by a strippable foil. The cartridge contains a preselected amount of material (say ground coffee) that fills the receptacle to a selected level. Preferably a plurality of such receptacles are packaged as telescoped stack of cartridges with a first receptacle telescoped within a second receptacle so that the second circumferential seal on the first cartridge is received in the first circumferential seal of the second receptacle thereby to seal the material in the second receptacle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.