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 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
Original Assignee
British American Tobacco (Investments) 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
Priority to US9356070A priority Critical
Application filed by British American Tobacco (Investments) Ltd filed Critical British American Tobacco (Investments) Ltd
Application granted granted Critical
Publication of CA947604A publication Critical patent/CA947604A/en
Application status is Expired legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Mouthpieces for cigars or cigarettes
    • A24D3/04Tobacco smoke filters characterised by their shape or structure
    • A24D3/041Tobacco 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)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US9356070A true 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 (10)

Country Link
US (1) US3695274A (en)
AU (1) AU450226B2 (en)
BE (1) BE776025A (en)
BR (1) BR7107540D0 (en)
CA (1) CA947604A (en)
CH (1) CH545601A (en)
DE (1) DE2156043B2 (en)
GB (1) GB1330936A (en)
NL (1) NL154926B (en)
ZA (1) ZA7107384B (en)

Families Citing this family (24)

* 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
JPH0228318B2 (en) * 1982-07-23 1990-06-22 Fuiritsupu Morisu Purodakutsu Inc
DE3374164D1 (en) * 1982-09-01 1987-12-03 Imp Tobacco Co Ltd Tipping assembly for an elongate smoking article
US4532943A (en) * 1982-09-30 1985-08-06 Philip Morris Incorporated Adjustable 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
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
EP0109608A1 (en) * 1982-11-13 1984-05-30 Petrus Sarabèr Filter for tobacco products and smoking utensils
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
DE3616617C2 (en) * 1985-05-20 1990-12-06 Tobacco Research And Development Institute Ltd., Zug, Ch
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 (en) * 1987-04-09 1988-12-13 Tabacofina Nv Mouthpiece for cigarette - comprises slightly porous core with passages between ends which can be shut off
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 (en) * 1994-11-09 1995-10-04 宁宝纲 Cigarette composite filter tip
RU2125822C1 (en) * 1998-06-15 1999-02-10 Погосян Сейран Амаякович Smoking article
RU2138974C1 (en) 1999-03-12 1999-10-10 Погосян Сейран Амаякович Smoking article
US6318376B1 (en) * 1999-12-07 2001-11-20 Chih-Wen Cheng Filter tip structure for cigarette

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
BE776025A (en) 1972-05-30
DE2156043B2 (en) 1976-05-20
CH545601A (en) 1974-02-15
CA947604A1 (en)
BE776025A1 (en)
ZA7107384B (en) 1972-07-26
DE2156043A1 (en) 1972-05-31
NL7115951A (en) 1972-06-01
AU3593971A (en) 1973-05-24
AU450226B2 (en) 1974-07-04
GB1330936A (en) 1973-09-19
NL154926B (en) 1977-11-15
BR7107540D0 (en) 1973-02-22
US3695274A (en) 1972-10-03

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