"Filter holder for a coffee machine of the ""espresso"" type"
US5150645A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 1991 |
| Grant date | Sep 29, 1992 |
| Priority date | — |
| Expiry date | May 29, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/4496
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A filter holder designed for use with a coffee machine of the "espresso" type comprises a receptacle for receiving a perforated filter cup. The filter cup and the receptacle together define an infusion collecting chamber underlying the filter cup. The infusion collecting chamber communicates via an outlet with a distributing funnel extending downardly from the receptacle. At the opening of the outlet channel there is disposed the free end of a flexible blade extending transversely of the channel. The free end of the flexible blade is applied with a predetermined force against the opening of the channel such that the infusion discharged from the outlet channel emanates in a laminar flow and is atomized upon contact with a partition surrounding the free end of the blade, to produce a substantial quantity of foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.