Electric storage heating apparatus

Details Electric storage heating apparatus Electric storage heating apparatus

1981-02-23

1983-07-26

Envall, Jr., Roy N.

Electric heating

Heating devices

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

338302, F24H 700, H05B 300

Patent

active

043956203

ABSTRACT:
An electric heat storage apparatus comprises an electric heating element, a ceramic heat storage pipe, an air passageway in communication with the pipe, and a thermostatically controlled air circulation means. The ceramic pipe has a scalloped-shaped outer surface providing a plurality of crests and troughs and a series of parallel grooves cut in at least some of the crests. The heating element is located in the grooves in contact with the pipe. In a preferred embodiment, the pipe is provided with a plurality of internal ribs of at least two different lengths. The pipe is supported on a ceramic cradle and a ceramic sponge or metal turnings are inserted into the pipe between the ribs to increase the heat transfer area.

REFERENCES:
patent: 1648871 (1927-11-01), Whittingham
patent: 1935163 (1933-11-01), Parsons
patent: 2694765 (1954-11-01), Hynes
patent: 3381113 (1968-04-01), Jacques et al.
patent: 4234782 (1980-11-01), Barabas et al.

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