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 7717027 B1

PDF
Full Text
Expired
Date of Patent:
May. 18, 2010

Filed:

Jan. 18, 2007
Applicants:

Takeshi Sato, Isesaki, JP;

Takashi Nagasawa, Isesaki, JP;

Takeshi Onda, Isesaki, JP;

Inventors:

Takeshi Sato, Isesaki, JP;

Takashi Nagasawa, Isesaki, JP;

Takeshi Onda, Isesaki, JP;

Assignee:

Sanden Corporation, Isesaki-shi, Gunma, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47J 31/36 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention provides a beverage extractor permitting extraction of a beverage of high quality irrespective of its type. The extractor is provided with a first extraction channel for letting the beverage extracted in a cylinder flow into the extraction pipe via beverage outlet holes of a second piston having a prescribed first bore and a second extraction channel via a communication hole having a prescribed second bore, which is smaller in bore than the outlet holes, for letting the beverage extracted in the cylinder flow into the extraction pipe, and the first and second extraction channels are switched over between each other by the movement of the second piston. This makes it possible to select an extraction channel suitable for the type of beverage, whether regular coffee or espresso coffee, and accordingly to extract a beverage of high quality irrespective of the type of beverage.


Find Patent Forward Citations

Sato, Takeshi. (2010). Beverage extractor (U.S. Patent No. 7717027). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7717027

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