IT8222131A0 - Mezzo di filtrazione. - Google Patents

Mezzo di filtrazione.

Info

Publication number
IT8222131A0
IT8222131A0 IT8222131A IT2213182A IT8222131A0 IT 8222131 A0 IT8222131 A0 IT 8222131A0 IT 8222131 A IT8222131 A IT 8222131A IT 2213182 A IT2213182 A IT 2213182A IT 8222131 A0 IT8222131 A0 IT 8222131A0
Authority
IT
Italy
Prior art keywords
filtration media
filtration
media
Prior art date
Application number
IT8222131A
Other languages
English (en)
Other versions
IT8222131A1 (it
IT1151969B (it
Inventor
Stanley William Byrne
Original Assignee
Cigarette Components 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 Cigarette Components Ltd filed Critical Cigarette Components Ltd
Publication of IT8222131A0 publication Critical patent/IT8222131A0/it
Publication of IT8222131A1 publication Critical patent/IT8222131A1/it
Application granted granted Critical
Publication of IT1151969B publication Critical patent/IT1151969B/it

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
IT22131/82A 1981-07-06 1982-06-29 Mezzo di filtrazione IT1151969B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8120822 1981-07-06

Publications (3)

Publication Number Publication Date
IT8222131A0 true IT8222131A0 (it) 1982-06-29
IT8222131A1 IT8222131A1 (it) 1983-12-29
IT1151969B IT1151969B (it) 1986-12-24

Family

ID=10523050

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22131/82A IT1151969B (it) 1981-07-06 1982-06-29 Mezzo di filtrazione

Country Status (5)

Country Link
US (1) US4481959A (it)
BR (1) BR8203918A (it)
CA (1) CA1184824A (it)
DE (1) DE3225092A1 (it)
IT (1) IT1151969B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4643206A (en) * 1984-02-21 1987-02-17 Brown & Williamson Tobacco Corporation Cigarette filter
US4580584A (en) * 1984-02-21 1986-04-08 Brown & Williamson Tobacco Corporation Cigarette filter
EP0167863B1 (de) * 1984-06-20 1988-01-07 H.F. & Ph.F. Reemtsma GmbH & Co Variabel ventilierbare Filterzigarette
US5851491A (en) * 1997-06-13 1998-12-22 Labcon, North America Pipette tip and filter for accurate sampling and prevention of contamination
US6063282A (en) * 1998-12-22 2000-05-16 Labcon, North America Simultaneous filtration of numerous samples using microfibers
CA2416144C (en) * 2000-07-12 2008-07-08 Philip Morris Products S.A. Recess filter and smokeable article containing a recess filter
GB201311079D0 (en) 2013-06-21 2013-08-07 British American Tobacco Co A method of fabricating a filter element
CN106360806A (zh) * 2016-10-31 2017-02-01 南通烟滤嘴有限责任公司 多角星形支架空芯滤棒及其成型口模

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240213A (en) * 1962-01-25 1966-03-15 Achilles Corp Cigarette
US3490461A (en) * 1967-04-20 1970-01-20 Philip Morris Inc Cigarette ventilation
US4256122A (en) * 1979-04-11 1981-03-17 Brown & Williamson Tobacco Corporation Cigarette filter
US4357950A (en) * 1980-05-27 1982-11-09 American Filtrona Corporation Tobacco smoke filter having improved tar/carbon monoxide ratio

Also Published As

Publication number Publication date
DE3225092A1 (de) 1983-01-20
IT8222131A1 (it) 1983-12-29
IT1151969B (it) 1986-12-24
BR8203918A (pt) 1983-06-28
CA1184824A (en) 1985-04-02
US4481959A (en) 1984-11-13

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