The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 17, 2014

Filed:

Sep. 20, 2007
Applicant:

Sipke Theo Douma, Hoogeveen, NL;

Inventor:

Sipke Theo Douma, Hoogeveen, NL;

Assignee:

Koninklijke Philips N.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47J 31/44 (2006.01);
U.S. Cl.
CPC ...
Abstract

An Espresso making device includes a brew chamber for enclosing a quantity of coffee grind, and a tube for supplying pressurized hot water to the brew chamber. Espresso is obtained by conducting the hot water through the coffee grind, where the water and the coffee grind are forced to interact. During an Espresso making process, a pressure of the water in the water supplying tube is monitored and compared to a predetermined pressure. In case the measured pressure appears to deviate from the predetermined pressure, a size of an internal volume of the brewing chamber is adjusted, so that an extent to which the coffee grind is compressed and a flow through resistance of the coffee grind are adjusted. Due to this, it is possible to adjust the pressure in such a way that the predetermined pressure is reached.


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