Transparent heating pane

Electric heating – Heating devices – With heater-unit housing – casing – or support means

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Details

219203, 219544, 219547, 244134D, H05B 306

Patent

active

043956220

ABSTRACT:
A heating glass plate (15, 20, 27, 34) has a heating network (17, 24, 31, 36) made up of wires embedded in a thermoplastic layer following curved directrices. A device for making a heating glass plate having a plate (39) for supporting thereon a plastic sheet. A bridge (44) is slidably supported on the plate and has thereon a sliding carriage (45) carrying wire-laying members (46). Means are provided for imparting reciprocal motion to the carriage. A rod (51) connects the carriage to a vertical spindle (52).

REFERENCES:
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patent: 3590371 (1971-06-01), Shaw, Jr.
patent: 3673044 (1972-06-01), Miller et al.
patent: 3752348 (1973-08-01), Dickason et al.
patent: 3813519 (1974-05-01), Jochim et al.
patent: 3832527 (1974-08-01), Nagasima
patent: 3874330 (1975-04-01), Zoccolini
patent: 3900634 (1975-08-01), Plumat et al.
patent: 3934111 (1976-01-01), Roselli et al.
patent: 4209687 (1980-06-01), Bethge et al.

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