Tobacco – Tobacco treatment
Patent
1991-02-28
1992-12-01
Millin, Vincent
Tobacco
Tobacco treatment
131296, 426419, A23K 302
Patent
active
051672430
ABSTRACT:
A disinfestation system for agricultural products, for example recovered tobacco, comprises a disinfestation unit which is releasably connected to plural containers. The disinfestation unit supplies a disinfestation gas (CO.sub.2) through the conduit means to the container, and periodically withdraws sample gas from said container. A thermal conductivity detector produces an electrical signal representation of the level of CO.sub.2 in the container, which is supplied, along with a temperature dependent signal, to a computer. The processor controls the introduction of additional CO.sub.2 throughout the process. Preferably, the system also includes heater elements, and the processor generates control signals for controlling temperature in the container. The computer controls the disinfestation process of multiple containers such multiple disinfestation processes can be carried out simultaneously.
REFERENCES:
patent: 4987745 (1991-01-01), Harris
Sonsino, Steven "Plastics Keeps ripeness under wraps", New Scientist Aug. 14, 1986 pp. 35-38.
Use of Carbon Dioxide to Disinfest a Tobacco Warehouse of the Cigarette Beetle; Keever, 1989, J. Agric. Entomol., vol. 6, pp. 43-51.
Methods of Applying Carbon Dioxide for Insect Control in Stored Grain, E. Jay, Dept. of Agriculture ATT-S-13, Apr. 1980.
Mortality of Stored-peanut Insects Exposed to Mixtures of Atmospheric . . . , Harein, 1968, J. Stored Prod Res., vol. 4, pp. 77-82.
Mortality of the Cigarette Beetle in High-Carbon Dioxide Atmospheres; Childs, 1983, J. Economic Entomology vol. 76, pp. 544-546.
Carbon Dioxide for Control of an Insect Infestation in Stored Corn (Maize), Jay, 1973, J. Stored Prod. Res., vol. 9, pp. 25-29.
Cowan Floyd S.
Grider David A.
Hughes Ricky L.
Thaggard Neil A.
Wagner John R.
Doyle J.
Lorillard Tobacco Company
Millin Vincent
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