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:
Dec. 31, 1991
Filed:
Mar. 14, 1986
Applicant:
Inventors:
Ernest G Farrier, Winston-Salem, NC (US);
Jackie L White, Pfafftown, NC (US);
Assignee:
R. J. Reynolds Tobacco Company, Winston-Salem, NC (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A24D / ;
U.S. Cl.
CPC ...
131369 ; 131359 ; 44577 ; 44599 ; 44DI / ;
Abstract
The present invention is directed to methods for producing carbon containing fuel elements especially suited for use in cigarette--like smoking articles. One method of the present invention makes use of two separate pyrolysis steps to ensure that the carbon used to form the fuel elements for smoking articles is substantially free of materials which could adversely affect the aerosol delivered by such articles. Also disclosed is a method in which a fuel element formed from carbon and a binder is pyrolyzed after formation to convert the binder to carbon.