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.:

US 6901846 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 07, 2005

Filed:

Mar. 04, 2002
Applicant:

Stephan Ruckstuhl, Neuendorf, CH;

Inventor:

Stephan Ruckstuhl, Neuendorf, CH;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47J031/40 ;
U.S. Cl.
CPC ...
Abstract

A coffee machine () comprises a removable brewing unit (), in which ground coffee powder is compacted in a brewing chamber along a main axis of the brewing unit () between a movable lifting bottom and a plunger that can be displaced toward the lifting bottom. Pressurized hot water is pressed through the compacted coffee powder. Afterwards, the lifting bottom and plunger are displaced together along the main axis in order to push the remaining filter cake out of the brewing chamber whereby ejecting it transversal to the main axis. The aim of the invention is to provide a coffee machine of the aforementioned type with a simplified and space-saving design as well as with an easier accessibility for cleaning and maintenance purposes. To these ends, the brewing unit () is designed so that it can be pushed into the coffee machine () from the front towards the back with the main axis parallel to the direction of insertion.


Find Patent Forward Citations

Ruckstuhl, Stephan. (2005). Coffee machine (U.S. Patent No. 6901846). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6901846

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