The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 14, 1996
Filed:
May. 25, 1994
Applicant:
Inventors:
John C Crump, III, Richmond, VA (US);
Eugene B Fischer, Chester, VA (US);
Robert C Wilson, Redmond, WA (US);
Warren D Winterson, Midlothian, VA (US);
Leif E Jaxmar, Vallakra, SE;
Gustav M Norberg, Bjarred, SE;
Lennart F Olsson, Nyhamnslage, SE;
Assignee:
Philip Morris Incorporated, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
F24C / ; F24D / ; A47J / ; A21B / ;
U.S. Cl.
CPC ...
99479 ; 34 75 ; 34 78 ; 99355 ; 9944 / ; 99476 ; 99477 ; 126 / ; 198778 ; 131304 ; 131306 ; 432133 ;
Abstract
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.