Electric heating – Microwave heating – Tunnel furnace
Patent
1974-07-08
1976-07-13
Truhe, J. V.
Electric heating
Microwave heating
Tunnel furnace
219270, 219552, 431262, F23Q 710
Patent
active
039696561
ABSTRACT:
An electric igniter assembly including a casing in which the major length of the igniter element is enclosed so that only a small portion is disposed in proximity to a gas burner; the electrical connectors for the igniter element and the electrodes that are attached to power leads are disposed remote from the flame issuing from the gas burner as well as being fixedly supported in the casing which includes shock absorbent material to reduce possibilities of breakage of the igniter element. A shield mounted upon the casing surrounds the igniter element so as to readily enable direct ignition of the gas burner and thereafter protect the igniter from direct burner flame impingement.
REFERENCES:
patent: 2149868 (1939-03-01), Rabezzama
patent: 2404841 (1946-07-01), Hess et al.
patent: 2487753 (1949-11-01), Cohn
patent: 2487754 (1949-11-01), Cohn
patent: 3551083 (1970-12-01), Michaels
patent: 3569787 (1971-03-01), Palmer
patent: 3577209 (1971-05-01), Perkins
patent: 3774077 (1973-11-01), Raffaelli et al.
patent: 3812324 (1974-05-01), Raffaelli et al.
patent: 3823345 (1974-07-01), Mitts et al.
Jackson Wilbur F.
Mitts Richard K.
Willson James R.
O'Brien Anthony A.
Robertshaw Controls Company
Shaw Clifford C.
Truhe J. V.
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