FR2524775A1 - Filtre a cigarette - Google Patents

Filtre a cigarette Download PDF

Info

Publication number
FR2524775A1
FR2524775A1 FR8305771A FR8305771A FR2524775A1 FR 2524775 A1 FR2524775 A1 FR 2524775A1 FR 8305771 A FR8305771 A FR 8305771A FR 8305771 A FR8305771 A FR 8305771A FR 2524775 A1 FR2524775 A1 FR 2524775A1
Authority
FR
France
Prior art keywords
filter
core
envelope
pressure drop
grooved
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
FR8305771A
Other languages
English (en)
French (fr)
Other versions
FR2524775B3 (zh
Inventor
Ernest Brian Hayes
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.)
Essentra PLC
Original Assignee
Filtrona PLC
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
Application filed by Filtrona PLC filed Critical Filtrona PLC
Publication of FR2524775A1 publication Critical patent/FR2524775A1/fr
Application granted granted Critical
Publication of FR2524775B3 publication Critical patent/FR2524775B3/fr
Granted 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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
FR8305771A 1982-04-08 1983-04-08 Filtre a cigarette Granted FR2524775A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8210585 1982-04-08

Publications (2)

Publication Number Publication Date
FR2524775A1 true FR2524775A1 (fr) 1983-10-14
FR2524775B3 FR2524775B3 (zh) 1985-01-25

Family

ID=10529642

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8305771A Granted FR2524775A1 (fr) 1982-04-08 1983-04-08 Filtre a cigarette

Country Status (10)

Country Link
BE (1) BE896393A (zh)
CH (1) CH660836A5 (zh)
DE (1) DE3312706A1 (zh)
FR (1) FR2524775A1 (zh)
GB (1) GB2118819B (zh)
IT (1) IT1194191B (zh)
NL (1) NL8301255A (zh)
NO (1) NO157125C (zh)
PT (1) PT76503B (zh)
SE (1) SE8301884L (zh)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555871A1 (fr) * 1983-12-05 1985-06-07 Brown & Williamson Tobacco Embout pour cigarette et cigarette equipee de cet embout
FR2555870A1 (fr) * 1983-12-05 1985-06-07 Brown & Williamson Tobacco Cigarette a filtre
FR2578397A1 (fr) * 1985-03-06 1986-09-12 Brown & Williamson Tobacco Embout ameliore pour article de tabac a fumer
FR2588727A1 (fr) * 1985-10-22 1987-04-24 Cigarette Components Ltd Filtre aere pour cigarette et cigarette utilisant un tel filtre
EP0797931A1 (fr) * 1996-03-29 1997-10-01 Societe Nationale D'exploitation Industrielle Des Tabacs Et Allumettes Cigarette à filtre ventilé à double tronçon de filtrage, aromatisé par le gainage du filtre
EP1093728A1 (en) * 1999-07-29 2001-04-25 Filtrona International Limited Filter for a cigarette and a filter-tipped cigarette
WO2009144496A1 (en) * 2008-05-30 2009-12-03 British American Tobacco (Investments) Limited Filter for a smoking article

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201016387D0 (en) * 2010-09-29 2010-11-10 Filtrona Int Ltd Tobacco smoke filter
KR102245876B1 (ko) 2012-09-28 2021-05-03 필립모리스 프로덕츠 에스.에이. 마우스 말단의 오염이 감소된 흡연 물품
EP3761812B1 (en) * 2018-03-08 2023-08-23 Philip Morris Products S.A. Aerosol generating articles
CN109645559A (zh) * 2018-12-25 2019-04-19 杨成云 一种多层瓦楞纸沟槽滤棒
WO2020215972A1 (zh) * 2019-04-22 2020-10-29 博颉(上海)管理咨询有限公司 一种烟草制品及其制作方法
WO2020228424A1 (zh) * 2019-05-10 2020-11-19 博颉(上海)管理咨询有限公司 加热不燃烧烟支
GB202116870D0 (en) * 2021-11-23 2022-01-05 Essentra Filter Products Dev Co Pte Ltd Paper filter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1308661A (en) * 1970-02-21 1973-02-21 Cigarette Components Ltd Device for treating tobacco smoke
GB1319862A (en) * 1970-07-23 1973-06-13 British American Tobacco Co Tobacco-smoke filters

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555871A1 (fr) * 1983-12-05 1985-06-07 Brown & Williamson Tobacco Embout pour cigarette et cigarette equipee de cet embout
FR2555870A1 (fr) * 1983-12-05 1985-06-07 Brown & Williamson Tobacco Cigarette a filtre
FR2578397A1 (fr) * 1985-03-06 1986-09-12 Brown & Williamson Tobacco Embout ameliore pour article de tabac a fumer
FR2588727A1 (fr) * 1985-10-22 1987-04-24 Cigarette Components Ltd Filtre aere pour cigarette et cigarette utilisant un tel filtre
EP0797931A1 (fr) * 1996-03-29 1997-10-01 Societe Nationale D'exploitation Industrielle Des Tabacs Et Allumettes Cigarette à filtre ventilé à double tronçon de filtrage, aromatisé par le gainage du filtre
EP1093728A1 (en) * 1999-07-29 2001-04-25 Filtrona International Limited Filter for a cigarette and a filter-tipped cigarette
US6718989B1 (en) 1999-07-29 2004-04-13 Japan Tobacco Inc. Filter for a cigarette and a filter-tipped cigarette
WO2009144496A1 (en) * 2008-05-30 2009-12-03 British American Tobacco (Investments) Limited Filter for a smoking article
US9066542B2 (en) 2008-05-30 2015-06-30 British American Tobacco (Investments) Limited Filter for a smoking article

Also Published As

Publication number Publication date
GB8309058D0 (en) 1983-05-11
PT76503A (en) 1983-05-01
FR2524775B3 (zh) 1985-01-25
NO831109L (no) 1983-10-10
DE3312706A1 (de) 1983-10-13
NO157125B (no) 1987-10-19
BE896393A (fr) 1983-10-07
SE8301884L (sv) 1983-10-09
GB2118819A (en) 1983-11-09
NL8301255A (nl) 1983-11-01
NO157125C (no) 1988-06-01
IT8320484A0 (it) 1983-04-07
IT1194191B (it) 1988-09-14
SE8301884D0 (sv) 1983-04-06
IT8320484A1 (it) 1984-10-07
GB2118819B (en) 1986-09-24
CH660836A5 (fr) 1987-05-29
PT76503B (en) 1986-01-27

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Legal Events

Date Code Title Description
ST Notification of lapse