CA947604A - Piston type cigarette filter - Google Patents

Piston type cigarette filter

Info

Publication number
CA947604A
CA947604A CA126,531A CA126531A CA947604A CA 947604 A CA947604 A CA 947604A CA 126531 A CA126531 A CA 126531A CA 947604 A CA947604 A CA 947604A
Authority
CA
Canada
Prior art keywords
piston type
cigarette filter
type cigarette
filter
piston
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
CA126,531A
Other languages
English (en)
Other versions
CA126531S (en
Inventor
Thomas W. Summers
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.)
British American Tobacco Investments Ltd IFI
Original Assignee
British American Tobacco Co 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 British American Tobacco Co Ltd filed Critical British American Tobacco Co Ltd
Application granted granted Critical
Publication of CA947604A publication Critical patent/CA947604A/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
    • A24D3/041—Tobacco smoke filters characterised by their shape or structure with adjustable means for modifying the degree of filtration of the filter
CA126,531A 1970-11-30 1971-11-01 Piston type cigarette filter Expired CA947604A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9356070A 1970-11-30 1970-11-30

Publications (1)

Publication Number Publication Date
CA947604A true CA947604A (en) 1974-05-21

Family

ID=22239610

Family Applications (1)

Application Number Title Priority Date Filing Date
CA126,531A Expired CA947604A (en) 1970-11-30 1971-11-01 Piston type cigarette filter

Country Status (9)

Country Link
US (1) US3695274A (OSRAM)
AU (1) AU450226B2 (OSRAM)
BE (1) BE776025A (OSRAM)
BR (1) BR7107540D0 (OSRAM)
CA (1) CA947604A (OSRAM)
CH (1) CH545601A (OSRAM)
GB (1) GB1330936A (OSRAM)
NL (1) NL154926B (OSRAM)
ZA (1) ZA717384B (OSRAM)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE32221E (en) * 1981-10-02 1986-08-12 Variable dilution filter
US4433696A (en) 1981-10-02 1984-02-28 Philip Morris Incorporated Variable dilution filter
WO1984000478A1 (en) * 1982-07-23 1984-02-16 Philip Morris Inc Cigarettes and methods of manufacture
DE3374164D1 (en) * 1982-09-01 1987-12-03 Imp Tobacco Co Ltd Tipping assembly for an elongate smoking article
US4526183A (en) * 1982-09-30 1985-07-02 Philip Morris Incorporated Filter cigarette
US4527573A (en) * 1982-11-05 1985-07-09 Philip Morris Incorporated Filter cigarette
US4649944A (en) * 1982-09-30 1987-03-17 Philip Morris Incorporated Filter cigarette
US4570649A (en) * 1982-09-30 1986-02-18 Philip Morris Incorporated Filter cigarette
US4532943A (en) * 1982-09-30 1985-08-06 Philip Morris Incorporated Adjustable filter cigarette
US4559955A (en) * 1983-06-20 1985-12-24 Link Electronics Ltd Controlled air bleed cigarette holder
GB2158689B (en) * 1984-05-19 1987-11-18 British American Tobacco Co Improvements relating to smoking articles
US4620553A (en) * 1984-05-22 1986-11-04 Imperial Group Public Limited Company Tobacco smoke filters
NL191233C (nl) * 1985-05-20 1995-04-03 Tobacco Res & Dev Sigaret met blokkeerbare luchtinlaat.
US4649945A (en) * 1985-12-05 1987-03-17 R. J. Reynolds Tobacco Company Adjustable air dilution cigarette exhibiting controlled pressure drop
US4649941A (en) * 1985-12-16 1987-03-17 R. J. Reynolds Tobacco Company Adjustable air dilution cigarette exhibiting controlled pressure drop
US4638820A (en) * 1986-02-03 1987-01-27 R. J. Reynolds Tobacco Company Puff control cigarette
BE1000454A4 (nl) * 1987-04-09 1988-12-13 Tabacofina Nv Mondstuk voor sigaretten en dergelijke.
US4949736A (en) * 1988-03-16 1990-08-21 R. J. Reynolds Tobacco Company Variable ventilation mouthpiece for a smoking article
US4898190A (en) * 1989-03-01 1990-02-06 R. J. Reynolds Tabacco Company Adjustable air dilution cigarette with pressure drop compensation
GB9023368D0 (en) * 1990-10-26 1990-12-05 Rothmans International Ltd Smoking article
CN1109304A (zh) * 1994-11-09 1995-10-04 宁宝纲 一种卷烟复合滤嘴
RU2125822C1 (ru) * 1998-06-15 1999-02-10 Погосян Сейран Амаякович Курительное изделие
RU2138974C1 (ru) 1999-03-12 1999-10-10 Погосян Сейран Амаякович Курительное изделие
US6318376B1 (en) * 1999-12-07 2001-11-20 Chih-Wen Cheng Filter tip structure for cigarette
GB201310599D0 (en) 2013-06-13 2013-07-31 Filtrona Filter Prod Dev Co Tabacco smoke filter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2145733A (en) * 1938-02-01 1939-01-31 Palumbo Peter Filter and ejector for cigarette and cigar holders
US2764513A (en) * 1954-04-02 1956-09-25 Abe R Brothers Cigarette with means for removing deleterious products of combustion
US3335733A (en) * 1965-03-15 1967-08-15 John M Brooks Smoke filter
US3512537A (en) * 1968-11-27 1970-05-19 U S Remedy Corp Adjustable aerated cigarette

Also Published As

Publication number Publication date
DE2156043B2 (de) 1976-05-20
BR7107540D0 (pt) 1973-02-22
NL7115951A (OSRAM) 1972-06-01
CH545601A (OSRAM) 1974-02-15
AU3593971A (en) 1973-05-24
DE2156043A1 (de) 1972-05-31
ZA717384B (en) 1972-07-26
GB1330936A (en) 1973-09-19
AU450226B2 (en) 1974-07-04
US3695274A (en) 1972-10-03
BE776025A (fr) 1972-05-30
NL154926B (nl) 1977-11-15

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