SE8301884L - Cigarette filters - Google Patents

Cigarette filters

Info

Publication number
SE8301884L
SE8301884L SE8301884A SE8301884A SE8301884L SE 8301884 L SE8301884 L SE 8301884L SE 8301884 A SE8301884 A SE 8301884A SE 8301884 A SE8301884 A SE 8301884A SE 8301884 L SE8301884 L SE 8301884L
Authority
SE
Sweden
Prior art keywords
core
pressure drop
wrapper
longitudinally
cigarette filters
Prior art date
Application number
SE8301884A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8301884D0 (en
Inventor
E B Hayes
Original Assignee
Filtrona Ltd
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 Ltd filed Critical Filtrona Ltd
Publication of SE8301884D0 publication Critical patent/SE8301884D0/en
Publication of SE8301884L publication Critical patent/SE8301884L/en

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)

Abstract

A cigarette filter element comprises a core (4, 10) of relatively high or infinite pressure drop material. Around the core a longitudinally grooved or corrugated wrapper or integral surface region (3) provides channels (1, 2) which extend from end to end of the core out of communication therewith and which, when the wrapper or skin is in turn surrounded by tipping material (7), are of less pressure drop longitudinally of the element than the core. <IMAGE>
SE8301884A 1982-04-08 1983-04-06 Cigarette filters SE8301884L (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
SE8301884D0 SE8301884D0 (en) 1983-04-06
SE8301884L true SE8301884L (en) 1983-10-09

Family

ID=10529642

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8301884A SE8301884L (en) 1982-04-08 1983-04-06 Cigarette filters

Country Status (10)

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

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550740A (en) * 1983-12-05 1985-11-05 Brown & Williamson Tobacco Corporation Mouthpiece for a cigarette and a cigarette having same
US4557281A (en) * 1983-12-05 1985-12-10 Brown & Williamson Tobacco Corporation Filtered cigarette
US4681125A (en) * 1985-03-06 1987-07-21 Brown & Williamson Tobacco Corporation Mouthpiece for tobacco smoke article
GB8525967D0 (en) * 1985-10-22 1985-11-27 Cigarette Components Ltd Ventilated cigarette filter
FR2746600B1 (en) * 1996-03-29 1998-04-30 Tabacs & Allumettes Ind DOUBLE FILTER SECTION VENTILATED FILTER CIGARETTE, FLAVORED BY THE FILTER SHEATH.
GB9917820D0 (en) * 1999-07-29 1999-09-29 American Filtrona Corp Filter for a cigarette and filter-tipped cigarette
GB0809865D0 (en) * 2008-05-30 2008-07-09 British American Tobacco Co Filter for a smoking article
GB201016387D0 (en) * 2010-09-29 2010-11-10 Filtrona Int Ltd Tobacco smoke filter
SG11201502459XA (en) 2012-09-28 2015-04-29 Philip Morris Products Sa Smoking article with reduced mouth end staining
BR112020015960A2 (en) * 2018-03-08 2020-12-15 Philip Morris Products S.A. AEROSOL GENERATING ARTICLES
CN109645559A (en) * 2018-12-25 2019-04-19 杨成云 A kind of corrugated multilayer furrowfilter rod
WO2020215972A1 (en) * 2019-04-22 2020-10-29 博颉(上海)管理咨询有限公司 Tobacco product and fabrication method therefor
WO2020228424A1 (en) * 2019-05-10 2020-11-19 博颉(上海)管理咨询有限公司 Heating non-burning cigarette
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

Also Published As

Publication number Publication date
NL8301255A (en) 1983-11-01
NO157125C (en) 1988-06-01
IT1194191B (en) 1988-09-14
GB2118819B (en) 1986-09-24
GB8309058D0 (en) 1983-05-11
IT8320484A1 (en) 1984-10-07
GB2118819A (en) 1983-11-09
PT76503A (en) 1983-05-01
FR2524775A1 (en) 1983-10-14
CH660836A5 (en) 1987-05-29
NO831109L (en) 1983-10-10
PT76503B (en) 1986-01-27
IT8320484A0 (en) 1983-04-07
NO157125B (en) 1987-10-19
DE3312706A1 (en) 1983-10-13
BE896393A (en) 1983-10-07
FR2524775B3 (en) 1985-01-25
SE8301884D0 (en) 1983-04-06

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Legal Events

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NAV Patent application has lapsed

Ref document number: 8301884-6

Effective date: 19881129