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.
Patent No.:
Date of Patent:
Jun. 05, 2018
Filed:
Jun. 02, 2011
Arnaud Vitel, Andouille, FR;
Gilles Lebuffe, Conde sur Vire, FR;
Thierry Gailhard, Chaponnay, FR;
SEB S.A., Ecully, FR;
Abstract
A brewing device () for an espresso-type coffee machine including a brewing chamber () for receiving ground coffee, a movably mounted pressure piston () in translation with a stroke that extends from an upper retracted position in which the pressure piston () is located above the brewing chamber () to a lower tamping position in which the pressure piston () enters said brewing chamber () and a potentiometer controlled by driving means during the stroke of the pressure piston () to measure the tamping position of said pressure piston and to thereby calculate the height of the compressed cake of ground coffee. The driving means only act on the potentiometer for a portion of the stroke of the pressure piston ().