Coffee brewing apparatus and method of brewing coffee by the app

Details Coffee brewing apparatus and method of brewing coffee by the app Coffee brewing apparatus and method of brewing coffee by the app

1998-06-09

1999-06-15

Alexander, Reginald L.

Foods and beverages: apparatus

Beverage

Infusors

99289P, 99289T, A47J 3136

Patent

active

059118105

ABSTRACT:
A coffee brewing apparatus has a first cylinder, having a top opening and a bottom opening. A vertically movable second cylinder containing ground coffee, having a top opening and a bottom opening, is disposed below the first cylinder coaxially therewith. A vertically movable upwardly urged plunger, having a top head and a bottom head, is disposed through the bottom opening of the first cylinder, coaxially therewith, in a manner that the top head is sealingly and slidingly fitted in the first cylinder and the bottom head is adapted to be sealingly and slidingly fitted in the second cylinder through the top opening thereof. The plunger has a hot water exit channel vertically therethrough and a pressure-operated hot water release valve disposed in the channel. When water is provided in the first cylinder on the top head of the plunger and pressurized, the plunger is pressed down so that the ground coffee in the second cylinder is compacted by the plunger before the valve opens and pressurized hot water in the first cylinder is released through the hot water release channel to be poured onto the ground coffee.

REFERENCES:
patent: 4421014 (1983-12-01), Vicker
patent: 4612850 (1986-09-01), Kanazashi et al.
patent: 5103716 (1992-04-01), Mikkelsen

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