Device for cleaning an espresso machine
US11497346B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 25, 2021 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Oct 25, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B2209/032
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A back-blush cleaning container may have a spring-biased piston that allows the container to fill with hot water when attached to a group head of the espresso machine. When the hot water of the espresso machine is turned off, the piston due to the spring urges the hot water out and back through a 3-way valve to clean the espresso machine. The backflush cleaning container also may have a steam conduit that allows steam from a steam wand of the espresso machine to clean the group head, 3-way valve and tubes. Moreover, the container may have a window which based on the position of the piston, a particular color is shown. The colors indicate whether the container is safe to remove from the group head of the espresso machine and when the container is full of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.