Filter element for espresso makers

Details Filter element for espresso makers Filter element for espresso makers

1994-09-19

1995-09-05

Dawson, Robert A.

Liquid purification or separation

Filter

Receptacle and modified spacing surface or support for...

210477, 99295, B01D 2710

Patent

active

054476313

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.

REFERENCES:
patent: 3943058 (1976-03-01), Wurm
patent: 4740303 (1988-04-01), Greutert et al.
patent: 4764277 (1988-08-01), Yoshida
patent: 5008013 (1991-04-01), Favre et al.
patent: 5326472 (1994-07-01), Combe

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