Electrically heated coffee percolator

Electric heating – Heating devices – Combined with diverse-type art device

Patent

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Details

99281, 99288, 99304, 99306, 99307, 219283, 219302, 219314, 2221465, H05B 100, A47J 31057, A47J 3156

Patent

active

046348387

ABSTRACT:
An electric coffee percolator is provided with a fresh water container located above a water heating chamber sized to receive and retain about 30-60% of the volumetric amount of fresh water required for a complete coffee infusion. The heating chamber is separated by a common wall from the water container and receives fresh water therefrom through a non-return value located in the common wall. A ventilating pipe in the water container is slidably amounted in the common wall to project a selected distance into the heating chamber so that the water level in the heating chamber can be adjusted. A check valve in the ventilating tube prevents expulsion of water from the heating chamber into the water container. The bottom wall of the heating chamber is provided with an electric heating element surrounding a well from which a riser pipe through which the hot water is expelled extends upwardly to a water outlet chamber having a cross-sectional area which increase in size from its inlet end to its outlet end. The end of the riser disposed in the well is shaped to release steam pressure prior to the expulsion of the last bit of water remaining in the heating chamber to prevent the remainder of the water from being expelled at an excessive speed.

REFERENCES:
patent: 2568474 (1951-09-01), Van Sciver
patent: 3420411 (1969-01-01), Ronchese
patent: 4103603 (1978-08-01), Bergmann et al.

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