Filters for liquids
US4123228A · kind A · utility
11Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1977 |
| Grant date | Oct 31, 1978 |
| Priority date | — |
| Expiry date | Aug 15, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/0631
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A filter for liquids and particularly coffee comprises a container having a planar horizontal base formed with at least one filtrate drainage opening, and on its inner face formed with a plurality of radial ribs and a central support member which together support a generally planar filter element of thin sheet material in spaced parallel relationship to the base. In use the arrangement produces a toroidal circulation of liquid which prevents compaction of the filter cake and reduces clogging of the filter element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.