Electric heating – Heating devices – With heating unit structure
Patent
1993-03-08
1994-02-22
Reynolds, Bruce A.
Electric heating
Heating devices
With heating unit structure
392485, 392488, 422174, H05B 310, F01N 310
Patent
active
052889750
ABSTRACT:
A resistance-adjusting-type heater including a honeycomb structure having a large number of passages and at least two electrodes provided on the honeycomb structure for energizing the honeycomb structure. The honeycomb structure has a slit or slits which form a predetermined angle to the partition walls of the honeycomb structure so as to enable adjustment of resistance between the electrodes, so that gas flowing through the passages of the honeycomb structure is heated.
REFERENCES:
patent: 3956614 (1976-05-01), Hervert
patent: 3982100 (1976-09-01), Hervert
patent: 4717813 (1988-01-01), Berg et al.
patent: 5063029 (1991-11-01), Mizuno et al.
Patent Abstracts of Japan, vol. 8, No. 227 (M-332) Oct. 18, 1984 & JP-A-59 109 704 (Toshiba) Jun. 25, 1984.
NGK Insulators Ltd.
Reynolds Bruce A.
Switzer Michael D.
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