CA2031727A1 - Concentric smoking filter having discrete tow and web filter media - Google Patents

Concentric smoking filter having discrete tow and web filter media

Info

Publication number
CA2031727A1
CA2031727A1 CA002031727A CA2031727A CA2031727A1 CA 2031727 A1 CA2031727 A1 CA 2031727A1 CA 002031727 A CA002031727 A CA 002031727A CA 2031727 A CA2031727 A CA 2031727A CA 2031727 A1 CA2031727 A1 CA 2031727A1
Authority
CA
Canada
Prior art keywords
filter
filter media
web
tow
concentric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002031727A
Other languages
French (fr)
Other versions
CA2031727C (en
Inventor
Cynthia W. Arterbery
W. Timothy Callaham
Gus D. Keritsis
Morris F. White, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philip Morris Products Inc
Original Assignee
Philip Morris Products Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24285429&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2031727(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Philip Morris Products Inc filed Critical Philip Morris Products Inc
Publication of CA2031727A1 publication Critical patent/CA2031727A1/en
Application granted granted Critical
Publication of CA2031727C publication Critical patent/CA2031727C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/163—Carbon

Abstract

A concentric smoking filter in which one of the filter media is a fibrous tow, such as fibrous cellulose acetate tow, and one of the filter media is a web material, such as paper, is provided. The filter improves the taste, particularly, of "ultra-light"
cigarettes.
CA002031727A 1990-08-24 1990-12-07 Concentric smoking filter having discrete tow and web filter media Expired - Fee Related CA2031727C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57187890A 1990-08-24 1990-08-24
US571,878 1990-08-24

Publications (2)

Publication Number Publication Date
CA2031727A1 true CA2031727A1 (en) 1992-02-25
CA2031727C CA2031727C (en) 2001-04-10

Family

ID=24285429

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002031727A Expired - Fee Related CA2031727C (en) 1990-08-24 1990-12-07 Concentric smoking filter having discrete tow and web filter media

Country Status (17)

Country Link
EP (1) EP0474940B2 (en)
JP (1) JP2767322B2 (en)
KR (1) KR0175139B1 (en)
AT (1) ATE115369T1 (en)
AU (1) AU635095B2 (en)
CA (1) CA2031727C (en)
DE (1) DE69015185T3 (en)
DK (1) DK0474940T4 (en)
ES (1) ES2066157T5 (en)
FI (1) FI94385C (en)
GR (2) GR3015326T3 (en)
HK (1) HK162995A (en)
HU (1) HU212772B (en)
NO (1) NO176464C (en)
PL (1) PL166314B1 (en)
RU (1) RU1836040C (en)
TR (1) TR25717A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10433578B2 (en) 2013-03-28 2019-10-08 Philip Morris Products S.A. Smoking article including a flavour delivery member

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5622190A (en) * 1990-08-24 1997-04-22 Philip Morris Incorporated Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core
US5365951A (en) * 1990-08-24 1994-11-22 Philip Morris Incorporated Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core
US5746230A (en) * 1990-08-24 1998-05-05 Philip Morris Incorporated Concentric smoking filter having discrete tow and web filter media
EP0638248A1 (en) * 1993-08-12 1995-02-15 Philip Morris Products Inc. Methods and apparatus to make concentric filters composed of two or more materials
GB9321536D0 (en) * 1993-10-19 1993-12-08 British American Tobacco Co Smoking articles
DE19718296B4 (en) * 1997-04-30 2006-06-29 British American Tobacco (Germany) Gmbh Ventilated filter cigarette with a coaxial filter element
DE19722812C2 (en) 1997-05-30 2003-02-13 Bat Cigarettenfab Gmbh Ultralight coaxial cigarette with multi-part filter
ES2179383T3 (en) * 1997-11-13 2003-01-16 Reemtsma H F & Ph REDUCED GASEOUS PHASE CIGARETTE.
DE10009829A1 (en) * 2000-03-01 2001-09-20 Reemtsma H F & Ph Filter cigarette has two part filter with ventilator, core, casing and length of tobacco.
GB0713905D0 (en) 2007-07-17 2007-08-29 British American Tobacco Co Cellulose acetate thread in filter
GB0811552D0 (en) * 2008-06-24 2008-07-30 British American Tobacco Co Filter for a smoking article
GB0816933D0 (en) * 2008-09-16 2008-10-22 British American Tobacco Co Filter for a smoking article
CN101999755A (en) * 2010-12-17 2011-04-06 南通烟滤嘴有限责任公司 Filter rod with coaxial paper cores
CN104188106A (en) * 2014-08-28 2014-12-10 云南中烟工业有限责任公司 Cigarette filter tip with high interception efficiency and application
KR102495620B1 (en) * 2017-06-19 2023-02-06 니뽄 다바코 산교 가부시키가이샤 Smoking article filter and method of manufacturing the same
KR102391290B1 (en) * 2020-04-22 2022-04-26 주식회사 케이티앤지 Mouthpiece for smoking aritcle, smoking article and smoking article assembly and smoking article package including the same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396061A (en) * 1964-06-01 1968-08-06 Celanese Corp Smoke filters
US4034765A (en) * 1975-10-30 1977-07-12 Liggett & Myers Incorporated Tobacco smoke filter
US4082098A (en) * 1976-10-28 1978-04-04 Olin Corporation Flavored cigarette
AU4119078A (en) 1977-11-18 1980-05-08 Philip Morris Inc Filter system
US4355995A (en) * 1979-03-27 1982-10-26 American Filtrona Corporation Tobacco smoke filter providing tobacco flavor enrichment, and method for producing same
US4291711A (en) * 1979-03-27 1981-09-29 American Filtrona Corporation Tobacco smoke filter providing tobacco flavor enrichment, and method for producing same
AU556902B2 (en) * 1981-12-18 1986-11-27 Cigarette Components Limited Tobacco smoke filter
DE3207683C2 (en) * 1982-03-03 1986-06-05 B.A.T. Cigaretten-Fabriken Gmbh, 2000 Hamburg Filter for a smokable article
GB2119221B (en) * 1982-04-05 1986-05-29 Filtrona Ltd Cigarette filter
DE3743597C1 (en) * 1987-12-22 1989-02-16 Bat Cigarettenfab Gmbh Coaxial cigarette
DE3901226C1 (en) * 1989-01-17 1990-07-26 B.A.T. Cigarettenfabriken Gmbh, 2000 Hamburg, De

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10433578B2 (en) 2013-03-28 2019-10-08 Philip Morris Products S.A. Smoking article including a flavour delivery member
US11109618B2 (en) 2013-03-28 2021-09-07 Philip Morris Products S.A. Smoking article including a flavour delivery member

Also Published As

Publication number Publication date
HU908366D0 (en) 1991-07-29
GR3032144T3 (en) 2000-04-27
PL166314B1 (en) 1995-05-31
ES2066157T3 (en) 1995-03-01
DE69015185T2 (en) 1995-05-24
DE69015185T3 (en) 2000-03-09
KR920003914A (en) 1992-03-27
AU635095B2 (en) 1993-03-11
JPH06269270A (en) 1994-09-27
DK0474940T3 (en) 1995-04-03
AU6774890A (en) 1992-02-27
NO176464B (en) 1995-01-02
CA2031727C (en) 2001-04-10
HUT64455A (en) 1994-01-28
ATE115369T1 (en) 1994-12-15
NO176464C (en) 1995-04-12
PL288311A1 (en) 1992-02-24
KR0175139B1 (en) 1999-02-18
FI94385C (en) 1995-09-11
EP0474940B1 (en) 1994-12-14
ES2066157T5 (en) 1999-12-16
HU212772B (en) 1996-11-28
DK0474940T4 (en) 2000-04-03
DE69015185D1 (en) 1995-01-26
FI906092A0 (en) 1990-12-11
EP0474940A1 (en) 1992-03-18
NO905639L (en) 1992-02-25
EP0474940B2 (en) 1999-10-06
FI906092A (en) 1992-02-25
RU1836040C (en) 1993-08-23
NO905639D0 (en) 1990-12-28
GR3015326T3 (en) 1995-06-30
HK162995A (en) 1995-10-27
JP2767322B2 (en) 1998-06-18
TR25717A (en) 1993-09-01
FI94385B (en) 1995-05-31

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Legal Events

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