Electric hotplate

Details Electric hotplate Electric hotplate

1980-08-14

1982-09-07

Roskoski, Bernard

Electric heating

Heating devices

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

219458, 219461, H05B 368

Patent

active

043485812

ABSTRACT:
An electric hot plate with a cast member has a downwardly-directed border on its outer periphery. The edge of a covering sheet centrally fixed to the hot plate by a hollow screw rests on the lower edge of the border. A covering sheet step is centered within the border. A moisture-proof closure is obtained through an interposed seal and insulation is provided by a crinkled aluminum foil. The hot plate connecting leads are passed via an insulating member through the covering sheet which, peripherally displaced by 180.degree., faces a depression in the covering sheet so that hot plates according to the invention can be stacked in a space-saving manner. The connecting leads are flexible and their ends are brought together in a common connecting member.

REFERENCES:
patent: 1093754 (1914-04-01), Ball
patent: 1174030 (1916-02-01), Hadaway, Jr.
patent: 1639382 (1927-08-01), Moffat
patent: 1644255 (1927-10-01), Kercher et al.
patent: 1660556 (1928-02-01), Gunn
patent: 2260165 (1941-10-01), Calhoun
patent: 2666979 (1954-01-01), Dusen
patent: 3348025 (1967-10-01), Basset, Jr. et al.
patent: 3593653 (1971-07-01), Buerki

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