Electrical resistance water heating device, particularly for bev

Details Electrical resistance water heating device, particularly for bev Electrical resistance water heating device, particularly for bev

1979-01-16

1982-08-10

Bartis, A.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

99288, 165165, 165168, 219283, 219298, 219305, 219530, H05B 302, F24H 112, A47J 3144

Patent

active

043439888

ABSTRACT:
An electrical resistance water heating device, particularly intended for use in coffee or other beverage preparation machines, includes a solid metal heating plate having planar upper and lower surfaces. A fluid throughflow duct is formed between the upper and lower surfaces and includes at least two elongated, spaced, side-by-side branches having corresponding ends interconnected by a connecting conduit to form a continuous fluid flow path from a water inlet to a water outlet. An elongated slot is formed between each pair of side-by-side branches and at least one plate-shaped planar PTC heating element is accomodated within each elongated slot with each of the opposing surfaces thereof directed toward a respective one of the pair of side-by-side branches between which the duct is formed. The spaces between the heating element and walls of the slot are filled with a hardenable electrically insulative filling of good heat conductivity.

REFERENCES:
patent: 808525 (1905-12-01), Erie
patent: 941215 (1909-11-01), Wade
patent: 1820458 (1931-08-01), Jenkins
patent: 1978690 (1934-10-01), Peterson
patent: 2920377 (1960-01-01), Janos
patent: 3338476 (1967-08-01), Marcoux

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