A radiant electric heating element

H - Electricity – 05 – B

Patent

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Details

H05B 3/28 (2006.01)

Patent

CA 2463320

A radiant electric heating element for use in a toast making appliance comprising a base plate (2) of stainless steel to one or each face of which there is printed a first ceramic track (3) with an electrically conductive track (5) printed on the face thereof remote from the base plate (2), and a second ceramic track (4) is printed upon and surrounds the heating track (5) thus hermetically to seal same between the two ceramic tracks. Such an element provides adequate radiant heat for efficiently toasting bread while the bread may be in direct contact with the element but is electrically insulated therefrom by the second ceramic track (4). By providing a further ceramic coating (6) on the opposed face of the base plate (2), mechanical integrity is maintained to prevent warping of the element and thus uneven toasting.

L'invention concerne un élément chauffant électrique rayonnant destiné à être utilisé dans un appareil de préparation de toasts comprenant une plaque de base (2) en acier inoxydable sur une ou sur chaque face de laquelle est imprimé un premier tracé céramique (3) présentant un tracé électroconducteur (5) imprimé sur sa face distante de la plaque de base (2), et un second tracé céramique (4) est imprimé sur le tracé chauffant (5) et l'entoure, afin de le sceller ainsi hermétiquement entre les deux tracés céramiques. Un tel élément procure une chaleur rayonnante adéquate permettant de griller efficacement du pain tandis que le pain peut se trouver en contact direct avec l'élément mais en est isolé électriquement par le second tracé céramique (4). Le fait de disposer un autre revêtement céramique (6) sur la face opposée de la plaque de base (2) permet de maintenir l'intégrité mécanique afin d'empêcher un voilement de l'élément et ainsi un brunissement irrégulier.

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