US2005076928A1PendingUtilityA1

Cigarette filter

Priority: Oct 10, 2003Filed: Oct 10, 2003Published: Apr 14, 2005
Est. expiryOct 10, 2023(expired)· nominal 20-yr term from priority
Inventors:Peter Hu
A24D 3/163A24D 3/04
41
PatentIndex Score
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Cited by
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References
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Claims

Abstract

This invention is directed to a novel cigarette filter which filters harmful components of cigarette smoke while at the same time preserving a tobacco taste. A cigarette comprising: (a) a cigarette paper cylinder; (b) a shredded tobacco component occupying one end of the paper cigarette cylinder; (c) a first filter section located adjacent the tobacco section; (d) a second filter section which is comprised of shredded cork and shredded tobacco; (e) a third filter section comprising a porous filter section; and (f) activated charcoal incorporated in the second or the third filter section.

Claims

exact text as granted — not AI-modified
1 . A cigarette comprising: 
 (a) a cigarette paper cylinder;    (b) a shredded tobacco section occupying one end of the interior of the paper cigarette cylinder;    (c) a first smoke filter section located adjacent the tobacco section in the interior of the cylinder;    (d) a second smoke filter section which is comprised of cork particles and tobacco shred adjacent the first filter section in the interior of the cylinder;    (e) a third smoke filter section comprising a porous filter section adjacent the second filter section in the interior of the cylinder; and    (f) activated charcoal incorporated either in the second filter section (d) or the third section (e).    
   
   
       2 . A cigarette as claimed in  claim 1  wherein the length of the shredded tobacco in the cigarette paper cylinder extends from ⅓ to ⅔ the length of the cylinder.  
   
   
       3 . A cigarette as claimed in  claim 1  wherein the lengths of the three filter sections in sum total ⅓ to ⅔ the length of the cigarette paper cylinder.  
   
   
       4 . A cigarette as claimed in  claim 1  wherein the first and third filter sections are cellulose acetate.  
   
   
       5 . A cigarette as claimed in  claim 1  wherein the cork particles and the tobacco shred in the second filter section are separate from one another in two subsections.  
   
   
       6 . A cigarette as claimed in  claim 1  wherein the activated charcoal and the porous filter in the third filter section are separate from one another in two subsections.  
   
   
       7 . A cigarette filter comprising: 
 (a) a first smoke filter section which is comprised of a smoke filtering material;    (b) a second smoke filter section which is comprised of cork particles and tobacco shred; and    (c) a third smoke filter section which is comprised of a smoke filtering material; and    (d) activated charcoal incorporated in the second smoke filter section or the third smoke filter section.    
   
   
       8 . A cigarette filter as claimed in  claim 7  wherein the shredded cork particles and tobacco shred in the second section are separate from one another in two subsections.  
   
   
       9 . A cigarette filter as claimed in  claim 8  wherein the porous filter material in the third section and the activated charcoal are separate from one another in two subsections.

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