Boiler for coffee machine of the espresso type

Details Boiler for coffee machine of the espresso type Boiler for coffee machine of the espresso type

1995-04-18

1998-01-27

Hoang, Tu B.

Electric resistance heating devices

Heating devices

Tank or container type liquid heater

392444, 392459, 219424, F24H 118

Patent

active

057129525

ABSTRACT:
A boiler for an espresso coffee maker comprises a metallic body (12) comprising a cover (15) with a peripheral flange (16) and a cup (18) connected in sealed fashion to the cover (15). A downwardly-extending water supply tube (26) extends through the cover. An electric heating resistance (24) is provided. A vertical water outlet conduit (32) opens through the bottom of the cup (18), and a valve (39) is disposed in the conduit (32) and opens only when a certain pressure threshold is reached. The peripheral flange (16) of the cover (15) of the body (12) is shaped as a gutter (22) in which is positioned in intimate thermal connection the electric heating resistance (24).

REFERENCES:
patent: 2748252 (1956-05-01), Williams et al.
patent: 3064112 (1962-11-01), Hanzel
patent: 3170193 (1965-02-01), Fike
patent: 3648659 (1972-03-01), Jones
patent: 3873810 (1975-03-01), Larson
patent: 4106179 (1978-08-01), Bleckmann

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