Foods and beverages: apparatus – Beverage – Infusors
Patent
1977-06-17
1979-02-06
Jenkins, Robert W.
Foods and beverages: apparatus
Beverage
Infusors
A47J 3154
Patent
active
041378334
ABSTRACT:
A coffee maker comprising a main or external tank for containing water and steam under pressure, a secondary or internal tank in the main tank for containing water under pressure to be used in making espresso, and a heating element in the main tank adjacent to the secondary tank for heating the water in the main tank and maintaining the water in the secondary tank at a substantially constant temperature. An aromatic coffee water supply is also maintained in a separate tank to feed a shower arrangement for making aromatic coffee. Alternatively, the shower can be fed directly from the main or external tank of the espresso-making arrangement. Once heated to a constant temperature, the water in the secondary or interior tank can be supplied to a group unit through a valve arrangement for injection through a quantity of ground espresso coffee to form the espresso coffee drink. Pressure relief valves are connected between the main and secondary tanks and a drain to maintain the pressures in the respective tanks at desired levels and prevent damage to the device.
REFERENCES:
patent: 1185073 (1916-05-01), Ehrheart
Jenkins Robert W.
Michalos Constantine A.
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