FUNCTIONAL FILTER, METHOD FOR MANUFACTURING THE FILTER, AND EXTRACTING DEVICE USING THE FILTER

Title:

FUNCTIONAL FILTER, METHOD FOR MANUFACTURING THE FILTER, AND EXTRACTING DEVICE USING THE FILTER

Document Type and Number:

WIPO Patent Application WO/2003/065858

Kind Code:

A1

Abstract:

An extraction cup (1) is placed on a cup (2), and a functional filter (3) is put in a body (1a) of the cup (1). A predetermined amount of extraction material (4) such as coffee beans, tea or herb is put into the filter (3), and a predetermined amount of extraction liquid (5) is poured on to the extraction material (4). At first the functional filter (3) hardly permit the extraction liquid (5) to pass therethrough. When the filter (3) is heated in an electric oven, however, a thermally soluble material with which the functional filter (3) is impregnated begins to dissolve as the temperature of the extraction liquid (5) rises, so that the extraction liquid (5) passes through the functional filter (3). When the temperature reaches a level, the soluble material dissolves greatly and the extraction liquid (5) drips in large quantities. The extraction ends before a bitter or rough taste comes out, so that coffee or tea can be extracted to a constant concentration and taste by anyone.

Inventors:

IKOMA TATSUO (JP)

Application Number:

PCT/JP2002/001117

Publication Date:

August 14, 2003

Filing Date:

February 08, 2002

Export Citation:

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Assignee:

FARNGE CO LTD (JP)
IKOMA TATSUO (JP)

International Classes:

A47J31/02; A47J31/06; A47J31/08; (IPC1-7): A47J31/06; A47J31/02; B01D11/02

Foreign References:

JP2001275842A	2001-10-09
JP2001340223A	2001-12-11
JPS55126058A	1980-09-29
JPS49131184U	1974-11-11