Illinois Tool Works Inc.

Despatch Industries Limited Partnership

Phillip Vu

Hans L Melgaard

Matthew Benson

Daniel M Ruf

Prathna Ung

Robert Gerald Graham

Rolf Douglas Kragseth

Ovens, discharge nozzle plates for distribution of gas through an oven, and methods to operate an oven are disclosed. Example ovens include a heating system to heat gas, a substrate heating volume, and a plenum comprising a side wall having a plurality of passages formed therein, the plenum configured to direct heated gas into the substrate heating volume from the plurality of passages, each of the plurality of passages formed in the plenum having a respective tapered cross-sectional shape.

Ovens, discharge nozzle plates for distribution of gas through an oven, and methods to operate an oven

One embodiment is directed to an oven for heating fibers. The oven comprises a supply structure disposed within the oven between first and second ends of the oven. The supply structure comprises a plurality of plenums stacked one above each other with gaps therebetween. The plenums are in fluid communication with a heating system. At least one plenum comprises at least one side wall comprising a plurality of passages formed therein, said at least one plenum configured to direct at least a portion of the heated gas into an interior of the oven from the plurality of passages. Each of the plurality of passages formed in said at least one plenum has a respective tapered cross-sectional shape.

Discharge nozzle plate for center-to-ends fiber oxidation oven

One embodiment is directed to an oven for heating fibers. The oven comprises a supply structure disposed within the oven between first and second ends of the oven. The supply structure comprises a plurality of plenums. The plenums are in fluid communication with a heating system. Each of the plenums comprises a pair of side walls, a bottom wall, and a top wall. Each of the plenums is configured so that first openings are formed in the respective side walls of that plenum. At least one plenum is configured so that one or more second openings are formed in at least one of the top wall or the bottom wall of at least one plenum. The at least one plenum is configured to supply heated gas from the heating system into the chamber from the first openings and said one or more second openings of the plenum.

Supply plenum for center-to-ends fiber oxidation oven

Growing community of inventors

St. Louis Park, MN, United States of America

Phillip Vu