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:
Sep. 05, 1995
Filed:
Sep. 19, 1994
Applicant:
Inventor:
Gotthard Mahlich, Kronberg, DE;
Assignee:
Arthur Eugster AG, Romanshorn, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210455 ; 210477 ; 99295 ;
Abstract
A permanent filter for coffee grind in an espresso maker includes a pot-shaped filter element having a bottom including several relief slots. The relief slots each have a width smaller than a mean diameter of particles of the coffee grind and a length which is a multiple of the mean diameter of the particles of coffee grind. The use of this permanent filter element accomplishes uniformly satisfactory espresso results independently of the type of coffee used, the fineness of grind and the dust content of the ground coffee.