Gas-fired infrared projection heater

Details Gas-fired infrared projection heater Gas-fired infrared projection heater

1982-09-21

1984-02-21

Yuen, Henry C.

Heating

Heat generator with an associated work support or heat...

432175, 432222, 431347, 126 91A, 126 92AC, F23D 2300

Patent

active

044327277

ABSTRACT:
A gas-fired infrared heater for projecting an infrared beam in a radiation pattern having a predetermined geometry for irradiating the surface of a food product or other body to effect uniform heating thereof at a rapid rate. The heater is constituted by a refractory assembly formed by a stack of identical slabs having a bore therethrough to receive the cylinder of a controllable ribbon-type gas-air burner from whose longitudinal slot is emitted a sheet of flame. Each slab is provided with a sector-shape channel cut in one face thereof to define a fin and side walls that diverge from the bore to create a flattened IR radiation horn whose mouth is aligned with the burner slot, whereby the surface of the assembly on which the flame impinges is heated to a temperature level causing this surface to emit infrared energy. The parallel array of radiation horns created by the assembly produces a radiation pattern whose shape depends on the geometry of the channel.

REFERENCES:
patent: 2495386 (1950-01-01), Peregrine
patent: 2601299 (1952-06-01), Kennedy
patent: 3437322 (1969-04-01), Flynn
patent: 3690626 (1972-09-01), Vernazza
patent: 3810732 (1974-05-01), Koch
patent: 3825406 (1974-07-01), Heath
patent: 3954388 (1976-05-01), Hildebrand
patent: 4034739 (1977-07-01), Boekelman
patent: 4202661 (1980-05-01), Lazaridis et al.

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