CA1194753A - Smoke filter - Google Patents

Smoke filter

Info

Publication number
CA1194753A
CA1194753A CA000406561A CA406561A CA1194753A CA 1194753 A CA1194753 A CA 1194753A CA 000406561 A CA000406561 A CA 000406561A CA 406561 A CA406561 A CA 406561A CA 1194753 A CA1194753 A CA 1194753A
Authority
CA
Canada
Prior art keywords
filter
wrapper
core
impermeable
external
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.)
Expired
Application number
CA000406561A
Other languages
English (en)
French (fr)
Inventor
Ernest B. Hayes
Anthony S. Cantell
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.)
Filtrona Richmond Inc
Original Assignee
American Filtrona Corp
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 American Filtrona Corp filed Critical American Filtrona Corp
Application granted granted Critical
Publication of CA1194753A publication Critical patent/CA1194753A/en
Expired 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)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
CA000406561A 1981-07-06 1982-07-05 Smoke filter Expired CA1194753A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8120821 1981-07-06
GB8120821 1981-07-06
GB8210372 1982-04-07
GB8210372 1982-04-07

Publications (1)

Publication Number Publication Date
CA1194753A true CA1194753A (en) 1985-10-08

Family

ID=26280029

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000406561A Expired CA1194753A (en) 1981-07-06 1982-07-05 Smoke filter

Country Status (18)

Country Link
AT (1) AT384350B (xx)
AU (1) AU546687B2 (xx)
BE (1) BE893752A (xx)
BR (1) BR8203961A (xx)
CA (1) CA1194753A (xx)
CH (1) CH649448A5 (xx)
DE (1) DE3225091C2 (xx)
DK (2) DK160798C (xx)
ES (1) ES273648Y (xx)
FR (1) FR2508772B1 (xx)
GB (1) GB2102271B (xx)
GR (1) GR76553B (xx)
HK (1) HK86989A (xx)
IE (1) IE53192B1 (xx)
IT (1) IT1198381B (xx)
NL (1) NL8202557A (xx)
NO (1) NO157042C (xx)
SE (2) SE461825B (xx)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118424B (en) * 1982-04-07 1986-07-16 Filtrona Ltd Tobacco smoke filter
JPS6048156B2 (ja) * 1982-07-07 1985-10-25 三菱アセテート株式会社 タバコスモ−クフイルタ−
GB2133269B (en) * 1982-12-13 1986-08-20 Filtrona Ltd Tobacco smoke filter
EP0117847B1 (fr) * 1983-02-15 1987-01-07 Battelle Memorial Institute Cigarette
DE3445354A1 (de) * 1983-12-13 1985-08-14 H.F. & Ph.F. Reemtsma Gmbh & Co, 2000 Hamburg Cigarette mit einstueckigem, ventilierten filtermundstueck
US5509429A (en) * 1989-03-02 1996-04-23 Kothmans, Benson & Hedges Inc. Uniform tar delivery profile filter
DK1321050T3 (da) 2001-12-18 2007-02-12 Bat Cigarettenfab Gmbh Filter til en rygbar artikel
GB201016387D0 (en) * 2010-09-29 2010-11-10 Filtrona Int Ltd Tobacco smoke filter
GB201112466D0 (en) * 2011-07-20 2011-08-31 British American Tobacco Co Smoking article
GB201213786D0 (en) * 2012-08-01 2012-09-12 Filtrona Filter Prod Dev Co Tobacco smoke filter
GB201311079D0 (en) 2013-06-21 2013-08-07 British American Tobacco Co A method of fabricating a filter element
GB201311450D0 (en) * 2013-06-27 2013-08-14 British American Tobacco Co A method and an apparatus for manufacturing a filter for a smoking article
BR112020009253A2 (pt) * 2017-11-28 2020-10-20 Philip Morris Products S.A. artigo gerador de aerossol com bocal com estrutura modificada
EP4051023A1 (en) * 2019-10-28 2022-09-07 JT International SA Filter component for an aerosol-generating article

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1718122A (en) * 1927-01-18 1929-06-18 Shon Clarence L De Cigarette tip
GB864247A (en) 1958-04-16 1961-03-29 Olin Mathieson Improvements in or relating to cigarettes
US3490461A (en) * 1967-04-20 1970-01-20 Philip Morris Inc Cigarette ventilation
US3596663A (en) * 1969-05-29 1971-08-03 Lorillard Co P Ventilated smoking article
IL36205A (en) * 1970-02-21 1973-05-31 Cigarette Components Ltd A device for treating tobacco smoke and a method for its production
SE381167B (sv) * 1974-03-13 1975-12-01 Svenska Tobaks Ab Filter for tobaksrok
CH621051A5 (en) * 1976-12-15 1981-01-15 Cigarette Components Ltd Tobacco smoke filter and manufacturing process for this
US4256122A (en) * 1979-04-11 1981-03-17 Brown & Williamson Tobacco Corporation Cigarette filter

Also Published As

Publication number Publication date
IE53192B1 (en) 1988-08-17
IT1198381B (it) 1988-12-21
BE893752A (fr) 1983-01-05
FR2508772A1 (fr) 1983-01-07
IE821500L (en) 1983-01-06
SE461825B (sv) 1990-04-02
DK116290A (da) 1990-05-10
NO157042B (no) 1987-10-05
ES273648U (es) 1984-01-16
AU8565582A (en) 1983-01-13
SE8904312D0 (sv) 1989-12-21
GB2102271A (en) 1983-02-02
FR2508772B1 (fr) 1986-11-14
SE8204081L (sv) 1983-01-07
ATA261682A (de) 1987-04-15
HK86989A (en) 1989-11-10
IT8222208A0 (it) 1982-07-02
DK160798B (da) 1991-04-22
DK160798C (da) 1991-10-14
DE3225091A1 (de) 1983-01-20
AT384350B (de) 1987-10-27
SE8904312L (sv) 1989-12-21
BR8203961A (pt) 1983-06-28
NL8202557A (nl) 1983-02-01
DE3225091C2 (de) 1996-09-19
DK287682A (da) 1983-01-07
AU546687B2 (en) 1985-09-12
CH649448A5 (fr) 1985-05-31
NO822284L (no) 1983-01-07
GB2102271B (en) 1985-11-13
GR76553B (xx) 1984-08-10
ES273648Y (es) 1984-08-01
NO157042C (no) 1988-01-13
SE8204081D0 (sv) 1982-07-01
DK116290D0 (da) 1990-05-10

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Legal Events

Date Code Title Description
MKEX Expiry