Flame holding lighter for industrial gas-fired ovens

Combustion – Flame holder having protective flame enclosing or flame... – Including means feeding air axially spaced points of the flame

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Details

431350, 431351, 431353, 48180A, 48189, 2394273, 239430, F23D 1502

Patent

active

044458460

ABSTRACT:
A flame-out-resistant portable torch for igniting gas-air blasts in industrial gas furnaces includes an inner pipe for receiving gas at one end, with the opposite end closed and a gas-expulsion slot along one side, surrounded in coaxial spacing by an outer pipe with an air-induction side slot 180.degree. from the slot in the inner pipe, the outer pipe has air-induction butt end opening, vents around portions of it near the slots, and a flame expulsion end with anti-back-pressure structure, and the coaxial space between the inner and outer pipes has special baffles along it for gas-air mixing for better flame-retention.

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patent: 3723050 (1973-03-01), Stevens, Jr. et al.
patent: 3729287 (1971-08-01), Strashok

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