Patent · US Active

Espresso machine method and apparatus

US8973435B2 · kind B2 · utility

14Cited by

7References

17Claims

0Family size

Assignee

Breville Pty Limited · AU

Inventors

Adam J. Preston · Sydney, AU
Con Psarologos · Sydney, AU

Key dates

Filing date	May 6, 2011
Grant date	Mar 10, 2015
Priority date	—
Expiry date	May 17, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA47J31/5255
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

A method and apparatus for measuring a resultant flow delivered by a pump coupled to an over pressure valve, the method comprising the steps of: measuring, using a first flow meter, feed flow to the pump; measuring, using a second flow meter, return flow from the over pressure valve; and calculating resultant flow, at least in part, by subtracting measured return flow from measured feed flow. A pump power modification module can further modifying the pump output pressure to enable pressure profiling.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.