Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1981-09-02
1983-10-18
Bartis, A.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219298, 219299, 219305, 219320, 219368, 219374, 219376, 219382, F24H 110, H05B 324, H05B 382
Patent
active
044107919
ABSTRACT:
An electric instant water heater mounted in a cold water line in proximity to a water tap includes an elongated core molded from a ceramic material and having a rectangular cross-section water flow passage extending therethrough from a circular inlet connected to a water supply pipe to a circular outlet connected to the water tap. A plurality of parallel, spaced, thin rectangular electrical resistance heating plates are positioned within the passage with one rolled edge of each plate being embedded in the core on one side of the passage way and the opposite rolled edge of each plate extending freely into the passage. A plurality of projections molded integrally with the core extend from the opposite side of the passage into the spaces between the heating plates and terminate short of the one side of the passage to define with the plates a serpentine flow path from the inlet to the outlet to cause water to be heated to flow across each face of the heating plates. The core is thermally insulated and a thermal overheat switch is provided to control energization of the heater plates.
REFERENCES:
patent: 793118 (1905-06-01), Wright et al.
patent: 1396121 (1921-11-01), Jacobsen
patent: 1562261 (1925-11-01), Sechowski
patent: 1731058 (1929-10-01), Pierson
patent: 1899839 (1933-02-01), Von Ruden
patent: 1905439 (1933-04-01), Carleton
patent: 1920049 (1933-07-01), Arber
patent: 1965208 (1934-07-01), Ackerman
patent: 1985830 (1934-12-01), Hynes
patent: 2489205 (1949-11-01), Sweeney
patent: 2866884 (1958-12-01), Minier
Bartis A.
Kowah, Inc.
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