초록 ▼

Mounting devices are provided for mounting the end portions of a replaceable infrared lamp on the sidewalls of heating chamber formed of a compressed insulation material with sheet metal covers on the outer surface thereof. Each mounting device comprises a ceramic holder having a hollow cylindrical

Mounting devices are provided for mounting the end portions of a replaceable infrared lamp on the sidewalls of heating chamber formed of a compressed insulation material with sheet metal covers on the outer surface thereof. Each mounting device comprises a ceramic holder having a hollow cylindrical body with a shoulder on the outer end thereof and a bottom wall on the inner end thereof. The bottom wall has a concentric circular opening with diametrically disposed notches. One of the ceramic holders is positioned in each of a pair of opposing holes in the sidewalls with its shoulder secured to the sheet metal cover by a sealant. The lamp is held with its end portions extending through the circular openings in the bottom walls of the ceramic holders so that the metal terminals of the lamp protrude outside the sidewalls. A gasket formed of a resilient refractory material is positioned on each of the end portions of the infrared lamp and tightly packed within the cylindrical body of the ceramic holder so as to provide a gastight joint.

대표청구항 ▼

In an infrared furnace: an elongated heating chamber having sidewalls formed of insulation with sheet metal covers on the outer surfaces thereof; an endless conveyor belt supported for movement through said heating chamber; a plurality of pairs of opposing circular holes provided in the sidewalls ab

In an infrared furnace: an elongated heating chamber having sidewalls formed of insulation with sheet metal covers on the outer surfaces thereof; an endless conveyor belt supported for movement through said heating chamber; a plurality of pairs of opposing circular holes provided in the sidewalls above and below said endless conveyor belt, the inner half portions of each of the holes in the insulation provided with a chamfer; a plurality of ceramic holders, each having a hollow cylindrical body, said body provided with a shoulder on the outer end thereof and a bottom wall on the inner end thereof having a concentric circular opening with diametrically disposed notches; each ceramic holder having its body positioned with a close fit in one of said circular holes on the sidewalls with its shoulder secured by sealant to said sheet metal cover; a plurality of infrared lamps, each comprising a quartz tube having an infrared emitter extending axially therethrough and flat metal terminals on the ends thereof, the width of said terminals being greater than the diameter of said quartz tube; each said infrared lamp transversely disposed within said heating chamber with the end portions of its quartz tube respectively extending with a close fit through the circular openings in the bottom walls of the ceramic holders on the opposite sidewalls of said heating chamber with the metal terminals protruding outside the sheet metal covers thereof; and a gasket made of a resilient refractory material disposed on each end portion of said quartz tube and tightly packed within the hollow cylindrical body of said ceramic holder around the end portions of the quartz tube.