GB2113068B - Smoke filters and their production - Google Patents

Smoke filters and their production

Info

Publication number
GB2113068B
GB2113068B GB08236686A GB8236686A GB2113068B GB 2113068 B GB2113068 B GB 2113068B GB 08236686 A GB08236686 A GB 08236686A GB 8236686 A GB8236686 A GB 8236686A GB 2113068 B GB2113068 B GB 2113068B
Authority
GB
United Kingdom
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.)
Expired
Application number
GB08236686A
Other versions
GB2113068A (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 GB2113068A publication Critical patent/GB2113068A/en
Application granted granted Critical
Publication of GB2113068B publication Critical patent/GB2113068B/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
    • A24D3/02—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
GB08236686A 1981-12-23 1982-12-23 Smoke filters and their production Expired GB2113068B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
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
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

Publications (2)

Publication Number Publication Date
GB2113068A GB2113068A (en) 1983-08-03
GB2113068B true GB2113068B (en) 1985-11-27

Family

ID=27406942

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08236686A Expired GB2113068B (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 (8)

* 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
RU2739544C1 (en) * 2017-06-19 2020-12-25 Джапан Тобакко Инк. Smoking article filter and method of manufacturing thereof
WO2019170454A1 (en) * 2018-03-08 2019-09-12 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
CN114983017B (en) * 2022-05-24 2023-08-22 云南中烟工业有限责任公司 Inner core filled outer hollow filter stick and processing method thereof

Family Cites Families (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
CA999501A (en) * 1972-08-21 1976-11-09 George L. Mathe Apparatus and method for producing filament tow filter rod having a foamed thermoplastic sheath
GB1414745A (en) * 1973-02-26 1975-11-19 Cigarette Components Ltd Tobacco smoke filter
GB1585862A (en) * 1976-11-19 1981-03-11 British American Tobacco Co Tobacco-smoke filters
AU4119078A (en) * 1977-11-18 1980-05-08 Philip Morris Inc Filter system
US4256122A (en) * 1979-04-11 1981-03-17 Brown & Williamson Tobacco Corporation Cigarette filter
US4387728A (en) * 1981-03-19 1983-06-14 Brown & Williamson Tobacco Corporation Cigarette filter

Also Published As

Publication number Publication date
GB2113068A (en) 1983-08-03
DE3280328D1 (en) 1991-06-06
EP0082734B1 (en) 1991-05-02
CA1212008A (en) 1986-09-30
EP0082734A2 (en) 1983-06-29
EP0082734A3 (en) 1985-12-11
HK86489A (en) 1989-11-10

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 20021222