BE770421A - TOBACCO SMOKE FILTER IMPROVEMENTS - Google Patents

TOBACCO SMOKE FILTER IMPROVEMENTS

Info

Publication number
BE770421A
BE770421A BE770421A BE770421A BE770421A BE 770421 A BE770421 A BE 770421A BE 770421 A BE770421 A BE 770421A BE 770421 A BE770421 A BE 770421A BE 770421 A BE770421 A BE 770421A
Authority
BE
Belgium
Prior art keywords
tobacco smoke
smoke filter
filter improvements
tobacco
smoke
Prior art date
Application number
BE770421A
Other languages
French (fr)
Original Assignee
British American Tobacco Co
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 filed Critical British American Tobacco Co
Publication of BE770421A publication Critical patent/BE770421A/en

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
    • A24D3/045—Tobacco smoke filters characterised by their shape or structure with smoke acceleration means, e.g. impact-filters
BE770421A 1970-07-23 1971-07-23 TOBACCO SMOKE FILTER IMPROVEMENTS BE770421A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3578370 1970-07-23

Publications (1)

Publication Number Publication Date
BE770421A true BE770421A (en) 1971-12-01

Family

ID=10381510

Family Applications (1)

Application Number Title Priority Date Filing Date
BE770421A BE770421A (en) 1970-07-23 1971-07-23 TOBACCO SMOKE FILTER IMPROVEMENTS

Country Status (11)

Country Link
AU (1) AU452247B2 (en)
BE (1) BE770421A (en)
CA (1) CA942611A (en)
CH (1) CH540656A (en)
DE (1) DE2135112C3 (en)
FI (1) FI51649C (en)
GB (1) GB1319862A (en)
NL (1) NL7110035A (en)
NO (1) NO128937B (en)
SE (1) SE370612B (en)
ZA (1) ZA714381B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4357950A (en) * 1980-05-27 1982-11-09 American Filtrona Corporation Tobacco smoke filter having improved tar/carbon monoxide ratio
NO157125C (en) * 1982-04-08 1988-06-01 Filtrona Ltd CIGARETTE FILTER ELEMENT, ALTERNATIVE WITH AN ENVIRONMENTAL, VENTILATING NOZZLE MATERIAL.
GB9307710D0 (en) * 1993-04-14 1993-06-02 Rothmans Benson & Hedges Smoking apparatus-l
CN100512689C (en) * 2006-09-28 2009-07-15 江南大学 Additive for lowering tar and free radical content in cigarette smoke and its adding method
CN108142992B (en) * 2017-12-29 2020-06-19 云南恩典科技产业发展有限公司 Phase-change composite material simulating bead blasting function and production method and application thereof
EP4161300A1 (en) * 2020-06-04 2023-04-12 R. J. Reynolds Tobacco Company Paper sheet filter element for a smoking article, and associated method

Also Published As

Publication number Publication date
SE370612B (en) 1974-10-28
NL7110035A (en) 1972-01-25
AU452247B2 (en) 1974-08-29
AU3111871A (en) 1973-01-18
NO128937B (en) 1974-02-04
CA942611A (en) 1974-02-26
GB1319862A (en) 1973-06-13
FI51649C (en) 1977-03-10
DE2135112B2 (en) 1973-04-05
CH540656A (en) 1973-08-31
FI51649B (en) 1976-11-30
DE2135112A1 (en) 1972-01-27
DE2135112C3 (en) 1973-10-31
ZA714381B (en) 1972-03-29

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: BRITISH AMERICAN TOBACCO CY LTD

Effective date: 19860731