Method of and apparatus for expanding tobacco

A method of and an apparatus for expanding tobacco, particularly tobacco impregnated with solid carbon dioxide are disclosed. The apparatus comprises an arcuate, generally C-shaped duct for conveying the tobacco material in a hot gaseous medium to sublimate the solid carbon dioxide and expand the to...

Full description

Saved in:
Bibliographic Details
Main Authors WILHELM; DOUGLAS EDWIN, POINDEXTER; DALE BOWMAN, BARNES; RUSSELL DEAN, BEARD; HOYT STURDIVANT, GUY; KEITH ROWAN, STEWART; TONY DEAN, RICHARDSON; HAROLD EUGENE, LAURENCE; RICKY HARRIS
Format Patent
LanguageEnglish
Published 01.06.1999
Edition6
Subjects
CIGARETTES
CIGARS
HUMAN NECESSITIES
MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING ORCHEWING
SMOKERS' REQUISITES
SNUFF
TOBACCO
Online AccessGet full text

Cover

More Information
Summary:A method of and an apparatus for expanding tobacco, particularly tobacco impregnated with solid carbon dioxide are disclosed. The apparatus comprises an arcuate, generally C-shaped duct for conveying the tobacco material in a hot gaseous medium to sublimate the solid carbon dioxide and expand the tobacco. The duct has a non-circular cross-section, preferably a rectangular cross-section, with a high width-to-depth ratio and an increasing depth from the inlet to an intermediate portion of the duct then a decreasing depth from the intermediate portion to the outlet of the duct. A winnower device infeeds the tobacco material into the duct adjacent the throat of a venturi section connected to the inlet of the conveying duct. A tangential separator with an adjustable baffle at the inlet thereof for controlling velocity in the separator is used to separate the expanded tobacco from the gaseous medium.
Bibliography:Application Number: US19960694963