Electric heating – Heating devices – With heating unit structure
Patent
1981-09-18
1985-02-26
Mayewsky, Volodymyr Y.
Electric heating
Heating devices
With heating unit structure
219517, 219543, 219253, 337144, 337161, 337401, 337405, 338212, 29840, 29620, 361104, H05B 310
Patent
active
045019568
ABSTRACT:
Electrical resistance heating element including a number of metal strips arranged in a meander-like pattern. In the resistance metal strips, which are made from a non-expensive base sheet material like lead, there is incorporated at least one fuse which will operate if the heat transfer from a randomly placed area of critical size (a critical area) is substantially blocked. The fuse or fuses are preferably constituted by a lead/tin alloy rolled into intimate contact with the lead base material.
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Bergersen Hans A.
Risberg Eilif
International Standard Electric Corporation
Mayewsky Volodymyr Y.
O'Halloran John T.
Ruzek Peter R.
Werner Mary C.
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