Brewing head of a hot-beverage preparation device, preparation device having a brewing head and operating method for said preparation device
US9167934B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2011 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Jun 21, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/4407
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A brewing head of a hot beverage machine includes a fixed brewing chamber part, and a movable brewing chamber part which is movable in relation to the fixed brewing chamber part to define a brewing chamber for receiving a substrate capsule. The fixed and movable brewing chamber parts are closed by a locking system to thereby form the brewing chamber, and a seal is provided for pressure-tight sealing of one of the two brewing chamber parts and the substrate capsule during beverage preparation. The brewing chambers has three operating positions involving an opening position for loading the brewing chamber, a partially closed position in which the brewing chamber is closed and the seal is detensioned, and a closed position in which the brewing chamber is likewise closed and the seal is tensioned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.