Diversas realizaciones para producir una barra de tabaco con un conducto de paso hueco que se extiende a través de la misma

摘要

The present invention is directed at various apparatus and methods for forming a sealed hollow core tobacco rod. The methods of the invention at least comprise passing a trimmed tobacco column and paper under a tongue that widens and flattens the column and paper; forming the tobacco and paper into a cylindrical shape; forming an inner hollow core; maintaining the hollow core shape; and outputting the sealed hollow core tobacco rod.