Brewed beverage maker with optical feedback system

Details Brewed beverage maker with optical feedback system Brewed beverage maker with optical feedback system

1996-02-22

1998-03-10

Cano, Milton

Foods and beverages: apparatus

Beverage

Infusors

426231, 426433, 426594, 356410, 356434, 356436, 250573, 250576, 250577, A47J 3140

Patent

active

057248826

ABSTRACT:
A brewed beverage maker, such as a coffee maker, is provided having an automatic concentration control system. An optical feedback system is employed for controlling the concentration of brewed beverages such as coffee and tea. In preferred embodiments, this invention employs a light beam that is passed through the beverage as the beverage is being made to determine the concentration of the beverage. A control system compares the measured concentration to a desired concentration and controls the flow of water through a filter basket containing coffee, tea or the like.

REFERENCES:
patent: 2502844 (1950-04-01), Hildreth
patent: 3430232 (1969-02-01), Martin
patent: 3560714 (1971-02-01), McDonald
patent: 3576646 (1971-04-01), Alwood
patent: 3606829 (1971-09-01), Alwood
patent: 3746864 (1973-07-01), Tick et al.
patent: 3773424 (1973-11-01), Selgin
patent: 3994590 (1976-11-01), Di Martini et al.
patent: 4180722 (1979-12-01), Clewans
patent: 4785852 (1988-11-01), Sager
patent: 5402242 (1995-03-01), Nakano

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