An apparatus is provided that comprises a self-stacking spiral conveyor that traverses through a circulating atmosphere. The atmosphere is manipulated by one or more chambers having an open side adjacent to the perforated sides of the spiral conveyor. Additional control over the circulating atmosphere may be achieved by injection or ejection of gas into one or more chambers.
申请公布号
US5515775(A)
申请公布日期
1996.05.14
申请号
US19940249181
申请日期
1994.05.25
申请人
PHILIP MORRIS INCORPORATED
发明人
CRUMP, III, JOHN C.;FISCHER, EUGENE B.;WILSON, ROBERT C.;WINTERSON, WARREN D.;JAXMAR, LEIF E. B.;NORBERG, GUSTAV M.;OLSSON, LENNART F.