Apparatus for prevention of material build-up such as tobacco in a conduit
AssigneeBrown & Williamson Tobacco Corporation
InventorsKen W. Davies, Don J. Disch
Life of this patent
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Abstract
An apparatus and method for preventing the build-up of undesirable materials such as tobacco in a bend in a conduit containing a gas stream having water vapor therein.
Claims6
A method for preventing the buildup of tobacco in a bend in a conduit containing a gas stream having water vapor therein which comprises:
- passing tobacco materials in a gas stream having water vapor therein through the bend in a conduit;
- and, cooling the interior surface of the bend to a temperature below the condensing point of the water vapor.
In an apparatus for conveying tobacco at high humidity in a gas stream, the apparatus having a conduit with at least one turn of greater than 45.degree. therein and means to convey tobacco through said conduit in said gas stream, the improvement comprising:
- means to cool the inner surface of the at least one turn to a temperature equal to or less than the temperature to condense water vapor in said gas stream.
An apparatus for conveying material in a gas stream containing water vapor comprising:
- a conduit system having at least one inlet to receive material including water vapor therein and at least one outlet to discharge material therefrom, the conduit system having at least one bend therein;
- means to convey said material through said conduit system;
- and, means to maintain said at least one bend at a temperature lower than the temperature to condense said water vapor.
Dependencies are inferred from the claim text.