Electrical resistance ignitor with spaced parallel filaments bra

Details Electrical resistance ignitor with spaced parallel filaments bra Electrical resistance ignitor with spaced parallel filaments bra

1993-09-30

1995-11-28

Jeffery, John A.

Electric heating

Heating devices

Resistive element: igniter type

219267, 219537, 219541, 338312, 338319, 338329, 338306, 29611, 29621, F23Q 722

Patent

active

054710324

ABSTRACT:
An ignitor for fuel gas burners formed of a plurality of spaced parallel filaments of SiC coated Carbon (C) high temperature brazed with Chromium Silicide in grooves provided in a refractory base block of Aluminum Oxide and Silicon Oxide. Terminal posts of IVIoSi are embedded in the high temperature braze. Stainless steel lead attachment pads are nickel-chrome brazed to the posts at a lower temperature. Removable notched graphite bridges and graphite hold-down blocks position the filaments during the high temperature brazing.

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patent: 4206492 (1980-06-01), Rhodes et al.
patent: 4228344 (1980-10-01), Boos et al.
patent: 4749845 (1988-06-01), Rasmussen et al.

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