Disposable filter for preparation of hot brewed beverage

Details Disposable filter for preparation of hot brewed beverage Disposable filter for preparation of hot brewed beverage

1995-09-29

1996-12-10

Walker, W. L.

Liquid purification or separation

Filter

Resting on supporting receiver, e.g., portable

210481, 210482, 426 77, 206 05, B01D 29085

Patent

active

055827314

ABSTRACT:
A disposable filter bag for preparation of hot brewed beverages, particularly for the preparation of American coffee, comprises a double layer of water permeable paper material in which a chamber is delimited by weak weldings with a batch of ground coffee contained therein. The filter bag features wings foldable inwards over the chamber for reduction of the package size. To use the filter bag the wings are opened and the upper edges are separated so as to allow the weak weldings to be peeled off for complete opening of the filter bag inside a basket.

REFERENCES:
patent: 4290521 (1981-09-01), Mitchell
patent: 4584101 (1986-04-01), Kataoka
patent: 4981588 (1991-01-01), Poulallion
patent: 5059325 (1991-10-01), Iida

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