Multistage progressive drying method

Details Multistage progressive drying method Multistage progressive drying method

1975-07-03

1977-02-01

Camby, John J.

Heating

Processes of heating or heater operation

Continous strip, strand or web passed longitudinally through...

432144, 34 23, F27B 928

Patent

active

040059790

ABSTRACT:
A multiple stage oven for heating a product such as carpet or the like, which serially moves through each stage to be heated. Each stage of the oven includes a fuel burner for heating air within the stage, and a fan for recirculating the heated air in the stage for impingement onto a carpet product moving through the stage. A portion of the heated air within each stage is drawn from that stage and supplied to a serially preceding stage. The volume of air withdrawn from the last stage in the serial arrangement, and also the volume of make-up air admitted to the first stage thereof, does not exceed the sum of the fuel combustion products within the zones and any moisture or other substance evaporated or evolved from the carpet in each of the heating zones.

REFERENCES:
patent: 1798718 (1931-03-01), Brown
patent: 1860887 (1932-05-01), Buysse
patent: 2107275 (1938-02-01), Anderson et al.
patent: 2799096 (1957-07-01), Scott
patent: 2838420 (1958-06-01), Valente
patent: 2981528 (1961-04-01), Culp
patent: 3581679 (1971-06-01), Jansen
patent: 3743474 (1973-07-01), Brock

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