Reusable coffee filter
US3935112A · kind A · utility
20Cited by
8References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 8, 1974 |
| Grant date | Jan 27, 1976 |
| Priority date | — |
| Expiry date | Jul 8, 1994 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/02
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A reusable coffee filter with a pot-shaped hotwater container and a filter strainer adjacent an opening in the bottom of said container. The filter strainer is made of metallic sieve sheets having perforations flaring out in the flow direction. On top of the hotwater container a distribution plate is supportably held which has a plurality of holes distributed over an area corresponding to the vertical projection of the opening of the filter strainer in order to ensure a good wetting and extraction efficiency of the coffee powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.