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. 29, 2010
Filed:
Jul. 14, 2006
Applicant:
Max Oehninger, Stäfa, CH;
Inventor:
Max Oehninger, Stäfa, CH;
Assignee:
Eugster/Frismag AG, Romanshorn, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A47J 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In an espresso coffee maker having an espresso brew unit () and a coffee outflow duct () in fluid-conductive connection with the espresso brew unit via a crema valve () and having an end sided coffee outflow (), no brewed residual coffee should remain in the coffee outflow duct nor leak out, for instance as leakage, through the coffee outflow. In order to avoid this, a return-flow suction unit (), which is preferably independent except for a drive means, is in fluid-conductive connection with the coffee outflow duct () between crema valve () and coffee outflow (), which is automatically activated when a brewing process is finished.