Electric heating – Heating devices – With current connection and/or disconnection means
Patent
1986-09-12
1988-08-09
Paschall, M. H.
Electric heating
Heating devices
With current connection and/or disconnection means
219505, 219492, 219507, 219205, 219202, 219262, 123179H, 123179BG, H05B 102
Patent
active
047629827
ABSTRACT:
Method and device for supplying electric current to ceramic heaters comprising heating resistors embedded in ceramic sintered bodies, being characterized in that direct current is supplied from a direct current supply circuit as the first current supply step and the direction of the direct current supplied to the heating resistors at the first current supply step is reversed by a switching circuit or alternate current is supplied as the second current supply step in order to eliminate or considerably reduce cracking of the ceramic sintered bodies of the ceramic heaters when the heaters are repeatedly used for a long time at high temperatures.
REFERENCES:
patent: 4215268 (1980-07-01), Dinkel
patent: 4258240 (1981-03-01), Pless
patent: 4348583 (1982-09-01), Bube et al.
patent: 4375205 (1983-03-01), Green
patent: 4478181 (1984-10-01), Kikuchi et al.
Miyasaka Michihiko
Nakanishi Noriyoshi
Ohno Michio
Shiraiwa Yoshinori
Kyocera Corporation
Paschall M. H.
LandOfFree
Method and device for supplying electric current to ceramic heat does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for supplying electric current to ceramic heat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for supplying electric current to ceramic heat will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-919757