Apparatus for extracting substances contained in sealed pliant bags
US5603254A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1995 |
| Grant date | Feb 18, 1997 |
| Priority date | — |
| Expiry date | Mar 16, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/0668
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A bag-holder and an extraction machine for enabling extraction of a substance for preparation of a beverage contained in a pliant bag having at least one linear edge weld. The bag-holder has a housing configured to provide a cavity for containing the bag and an area which provides a grid of raised and indented elements and flow holes, the grid area providing for tearing the bag and for flow of extract from the housing during extraction. The bag-holder also has provision for securing the edge weld of the bag to keep the bag in the holder. The bag-holder also contains a bore in the area of the outflow grid for accepting a hollowed needle therethrough for penetrating into a bag for introducing extraction fluid into the bag and wherein the needle, during extraction, extends from an extraction machine which also has a part for, upon placement of the bag-holder together with the extraction machine, enabling sealing the part and the holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.