Tobacco curing and drying apparatus

Details Tobacco curing and drying apparatus Tobacco curing and drying apparatus

1975-06-16

1977-03-08

Camby, John J.

Heating

Processes of heating or heater operation

Controlling flame position or work atmosphere

432176, 432222, 432500, 131140B, F26B 302, A24B 102

Patent

active

040110419

ABSTRACT:
Leaf tobacco or the like in a substantially airtight enclosure is cured and dried by circulating through the enclosure air that is controllably heated by a forced air fuel burner located in an elongated vertically oriented duct outside the enclosure. The outlet end of the duct is communicated with the enclosure at the bottom thereof, and its upper inlet end is controllably communicable with the enclosure at the top thereof and with the ambient atmosphere. The air intake port of the fuel burner receives only air flowing through the duct. Air circulation is effected by an electric motor driven fan near the inlet of the duct, and a restriction in the duct produces a pressure drop across the burner that prevents back-drafts through it.

REFERENCES:
patent: 2343346 (1944-03-01), Touton
patent: 2551215 (1951-05-01), Lytton
patent: 2985438 (1961-05-01), Prowler
patent: 3109637 (1963-11-01), Taylor
patent: 3881863 (1975-05-01), Creuz
patent: 3910757 (1975-10-01), Taylor et al.

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