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FI61618C - Filter foer tobaksroek - Google Patents

Filter foer tobaksroek Download PDF

Info

Publication number
FI61618C
FI61618C FI773371A FI773371A FI61618C FI 61618 C FI61618 C FI 61618C FI 773371 A FI773371 A FI 773371A FI 773371 A FI773371 A FI 773371A FI 61618 C FI61618 C FI 61618C
Authority
FI
Finland
Prior art keywords
filter
smoke
spaces
jacket
space
Prior art date
Application number
FI773371A
Other languages
English (en)
Finnish (fi)
Other versions
FI61618B (fi
FI773371A (fi
Inventor
Henry George Horsewell
John David Green
John Anthony Luke
Raymond John Harrison
Original Assignee
British American Tobacco Co
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 British American Tobacco Co filed Critical British American Tobacco Co
Publication of FI773371A publication Critical patent/FI773371A/fi
Publication of FI61618B publication Critical patent/FI61618B/fi
Application granted granted Critical
Publication of FI61618C publication Critical patent/FI61618C/fi

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)

Claims (7)

1. Filter för tobaksrök bestäende av en filterkropp (1, 6) av filter-material, som är innesluten i en mantel (3) av poröst omslagsmaterial, genom vilken tobaksrökens flyktiga komponenter kan tränga och som tillsammans med nämnda kropp begränsar ätminstone ett utrymme (5, 11), som bildar en kanal, genom vilken röken kan strömma vid användning av filtret och ur vilken nämnda rökkomponenter kan avgä genom diffusion genom mantelmaterialet (3), kännetecknat därav, att i filterkroppens bäda ändar finns änddelar (la, lbj 7, 9) av filterma-terial, mellan vilka mellandelen (2, 8) ocksä av filtermaterial helt befinner sig, sedd i kroppens axiella riktning, innanför änddelarnas (la, lbj 7, 9) ytterkonturer sä, att den porösa mäntein (3, 4, 10) begränsar nämnda utrymme (5) eller utrymmen (11) väsentligen utmed hela mantelns (3, 4, 10) periferiomräde, genom vilket utrymme (5) eller utrymmen (11) röken Strömmer i filterkroppens (1) axialriktning, vilka utrymmen (5, 11) är väsentligen ringformade.
2. Filter enligt patentkravet 1, kännetecknat därav, att kroppen (la, Ib, 2, 6) är av cellulosaacetat.
3. Filter enligt patentkravet 1 eller 2, kännetecknat därav, att kroppen uppvisar en mellandel (2), som mellan mäntein och kroppen bildar ett längsträckt och ringformat utrymme (5).
FI773371A 1976-11-19 1977-11-10 Filter foer tobaksroek FI61618C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB48404/76A GB1585862A (en) 1976-11-19 1976-11-19 Tobacco-smoke filters
GB4840476 1976-11-19

Publications (3)

Publication Number Publication Date
FI773371A FI773371A (fi) 1978-05-20
FI61618B FI61618B (fi) 1982-05-31
FI61618C true FI61618C (fi) 1982-09-10

Family

ID=10448498

Family Applications (1)

Application Number Title Priority Date Filing Date
FI773371A FI61618C (fi) 1976-11-19 1977-11-10 Filter foer tobaksroek

Country Status (11)

Country Link
US (1) US4213470A (sv)
AU (2) AU509480B1 (sv)
BE (1) BE860985A (sv)
CA (1) CA1078698A (sv)
CH (1) CH620578A5 (sv)
DE (1) DE2751559A1 (sv)
DK (1) DK151171C (sv)
FI (1) FI61618C (sv)
GB (1) GB1585862A (sv)
NL (1) NL7712335A (sv)
ZA (1) ZA776589B (sv)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA795207B (en) * 1978-10-19 1980-11-26 British American Tobacco Co Production of tobacco-smoke filters
CA1156533A (en) * 1980-05-01 1983-11-08 Henry G. Horsewell Smoking articles
US4338956A (en) * 1980-12-05 1982-07-13 Brown & Williamson Tobacco Corporation Cigarette filter
US4342322A (en) * 1980-12-22 1982-08-03 Brown & Williamson Tobacco Corporation Cigarette filter
US4492238A (en) 1981-09-30 1985-01-08 Philip Morris Incorporated Method and apparatus for production of smoke filter components
CA1212008A (en) * 1981-12-23 1986-09-30 Richard M. Berger Smoke filter having extended film overwrap and method and apparatus for fabricating same
FI70779C (fi) * 1982-11-13 1986-10-27 Bat Cigarettenfab Gmbh Filtermunstycke foer en roekprodukt
GB8302058D0 (en) * 1983-01-26 1983-03-02 British American Tobacco Co Tobacco-smoke filter
CA2311728C (en) * 1999-06-14 2004-01-27 Rothmans, Benson & Hedges Inc. Make-your-own cigarette
GB0809865D0 (en) 2008-05-30 2008-07-09 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
GB0816937D0 (en) * 2008-09-16 2008-10-22 British American Tobacco Co Filter for a Smoking Article
GB0816935D0 (en) * 2008-09-16 2008-10-22 British American Tobacco Co Filter for a smoking article

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2819720A (en) * 1955-07-01 1958-01-14 Burbig Henry Cigarette or cigar with filter
US2954773A (en) * 1958-01-23 1960-10-04 Mac Farland Aveyard & Company Cigarette filters and method of making same
GB1214319A (en) * 1967-12-21 1970-12-02 Molins Machine Co Ltd Improvements in or relating to mouthpiece cegarettes and like smoking articles
US3768489A (en) * 1970-10-05 1973-10-30 Eastman Kodak Co Tobacco smoke filter
BE790146A (fr) * 1971-10-27 1973-02-15 British American Tobacco Co Cigarette ventilee a bout filtre
US3752165A (en) * 1971-12-20 1973-08-14 G Harllee Smoke filter plug and process and cigarette made therefrom
FR2142412A5 (sv) * 1972-06-13 1973-01-26 Seita
US3964493A (en) * 1972-09-07 1976-06-22 Baker-Alpha Corporation Cigarette filter
US3811451A (en) * 1972-09-11 1974-05-21 American Filtrona Corp Tobacco smoke filter
SE381167B (sv) * 1974-03-13 1975-12-01 Svenska Tobaks Ab Filter for tobaksrok

Also Published As

Publication number Publication date
DK512177A (da) 1978-05-20
CH620578A5 (sv) 1980-12-15
US4213470A (en) 1980-07-22
DE2751559C2 (sv) 1991-02-14
FI61618B (fi) 1982-05-31
DK151171B (da) 1987-11-09
AU509480B1 (en) 1980-05-15
ZA776589B (en) 1978-08-30
FI773371A (fi) 1978-05-20
DK151171C (da) 1988-04-25
BE860985A (fr) 1978-03-16
CA1078698A (en) 1980-06-03
GB1585862A (en) 1981-03-11
AU3068677A (en) 1979-05-24
NL7712335A (nl) 1978-05-23
DE2751559A1 (de) 1978-05-24

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