Treatment of tobacco
Patent 4148325 Issued on April 10, 1979. Estimated Expiration Date: 
August 6, 1996. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 6, 1996. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References RE29298 3042526 3094059 3524452 3529606 3548838 3697286 3701667 Method and apparatus for conditioning tobacco Patent #: 4004594 InventorsAssigneeApplicationNo. 05/712207 filed on 08/06/1976US Classes:131/302, Including means to circulate fluid34/68Diverse heater types and/or gas or vapor contact types onlyExaminersPrimary: Michell, Robert W.Assistant: Millin, V. Attorney, Agent or FirmInternational ClassesA24B 3/04 (20060101)A24B 3/00 (20060101) Foreign Application Priority Data1975-08-18 GBAbstractThe invention concerns a method and apparatus for conditioning and/or drying or otherwise treating tobacco, in which cut tobacco is treated with a liquid and/or vapour medium in a chamber in which a columnar bed of the tobacco is maintained in a fluidized state by air, which may be heated. The treatment medium may comprise water, which is introduced as a spray into the bed and/or in co-current with the fluidizing air through diffusing means at the bottom of the bed, and/or steam. The tobacco may be treated in continuous flow or batchwise. | |
