EP0082734A3 - Smoke filters and their production - Google Patents

Smoke filters and their production Download PDF

Info

Publication number
EP0082734A3
EP0082734A3 EP82306942A EP82306942A EP0082734A3 EP 0082734 A3 EP0082734 A3 EP 0082734A3 EP 82306942 A EP82306942 A EP 82306942A EP 82306942 A EP82306942 A EP 82306942A EP 0082734 A3 EP0082734 A3 EP 0082734A3
Authority
EP
European Patent Office
Prior art keywords
production
smoke filters
smoke
filters
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.)
Granted
Application number
EP82306942A
Other versions
EP0082734A2 (en
EP0082734B1 (en
Inventor
Richard Malcolm Berger
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.)
Essentra PLC
Original Assignee
Filtrona PLC
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 claimed from US06/333,802 external-priority patent/US4423744A/en
Priority claimed from US06/333,815 external-priority patent/US4499912A/en
Priority claimed from US06/444,056 external-priority patent/US4614199A/en
Application filed by Filtrona PLC filed Critical Filtrona PLC
Publication of EP0082734A2 publication Critical patent/EP0082734A2/en
Publication of EP0082734A3 publication Critical patent/EP0082734A3/en
Application granted granted Critical
Publication of EP0082734B1 publication Critical patent/EP0082734B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0229—Filter rod forming processes
    • A24D3/0237—Filter rod forming processes by extrusion
    • 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
EP82306942A 1981-12-23 1982-12-23 Smoke filters and their production Expired - Lifetime EP0082734B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US333815 1981-12-23
US06/333,802 US4423744A (en) 1981-12-23 1981-12-23 Tobacco smoke filter contoured to provide undiluted air flow and method and apparatus for manufacturing same
US333802 1981-12-23
US06/333,815 US4499912A (en) 1981-12-23 1981-12-23 Free air dilution smoke filter and method and apparatus for fabricating same
US06/444,056 US4614199A (en) 1981-12-23 1982-11-23 Smoke filter having extended film overwrap and method and apparatus for fabricating same
US444056 1995-05-18

Publications (3)

Publication Number Publication Date
EP0082734A2 EP0082734A2 (en) 1983-06-29
EP0082734A3 true EP0082734A3 (en) 1985-12-11
EP0082734B1 EP0082734B1 (en) 1991-05-02

Family

ID=27406942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82306942A Expired - Lifetime EP0082734B1 (en) 1981-12-23 1982-12-23 Smoke filters and their production

Country Status (5)

Country Link
EP (1) EP0082734B1 (en)
CA (1) CA1212008A (en)
DE (1) DE3280328D1 (en)
GB (1) GB2113068B (en)
HK (1) HK86489A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10153821A1 (en) 2001-11-05 2003-06-05 Hauni Maschinenbau Ag Multi-segment filter of the tobacco processing industry and method for producing the same
DE10153820A1 (en) * 2001-11-05 2003-05-15 Hauni Maschinenbau Ag Filter segments or filters for cigarettes and processes for their manufacture
CN106263021B (en) * 2016-11-01 2022-07-29 湖北中烟工业有限责任公司 W-shaped cigarette filter stick forming device
CN110769705A (en) * 2017-06-19 2020-02-07 日本烟草产业株式会社 Filter for smoking article and method for manufacturing same
BR112020014233A2 (en) * 2018-03-08 2020-12-08 Philip Morris Products S.A. AEROSOL GENERATING ARTICLES
CN113950257A (en) * 2019-05-01 2022-01-18 贝洛奥菲尔有限公司 Smoking article holder
CN112895374B (en) * 2021-02-07 2023-04-25 云南长宜科技有限公司 Preparation method and device of airflow unit

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789855A (en) * 1971-06-22 1974-02-05 Liggett & Myers Inc High flavor impact, low smoke yield cigarette mouthpiece
FR2196903A1 (en) * 1972-08-21 1974-03-22 Philip Morris Inc
FR2218847A2 (en) * 1973-02-26 1974-09-20 Cigarette Components Ltd
DE2751559A1 (en) * 1976-11-19 1978-05-24 British American Tobacco Co TOBACCO SMOKING FILTER
DE2849904A1 (en) * 1977-11-18 1979-05-23 Philip Morris Inc FILTER SYSTEM FOR CIGARETTES
GB2046573A (en) * 1979-04-11 1980-11-19 Brown & Williamson Tobacco Cigarette filter
GB2095093A (en) * 1981-03-19 1982-09-29 Brown & Williamson Tobacco Tobacco smoke filters

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789855A (en) * 1971-06-22 1974-02-05 Liggett & Myers Inc High flavor impact, low smoke yield cigarette mouthpiece
FR2196903A1 (en) * 1972-08-21 1974-03-22 Philip Morris Inc
FR2218847A2 (en) * 1973-02-26 1974-09-20 Cigarette Components Ltd
DE2751559A1 (en) * 1976-11-19 1978-05-24 British American Tobacco Co TOBACCO SMOKING FILTER
DE2849904A1 (en) * 1977-11-18 1979-05-23 Philip Morris Inc FILTER SYSTEM FOR CIGARETTES
GB2046573A (en) * 1979-04-11 1980-11-19 Brown & Williamson Tobacco Cigarette filter
GB2095093A (en) * 1981-03-19 1982-09-29 Brown & Williamson Tobacco Tobacco smoke filters

Also Published As

Publication number Publication date
HK86489A (en) 1989-11-10
GB2113068A (en) 1983-08-03
EP0082734A2 (en) 1983-06-29
DE3280328D1 (en) 1991-06-06
EP0082734B1 (en) 1991-05-02
GB2113068B (en) 1985-11-27
CA1212008A (en) 1986-09-30

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