ZA766954B - Improvements relating to filters for smoking articles - Google Patents

Improvements relating to filters for smoking articles

Info

Publication number
ZA766954B
ZA766954B ZA766954A ZA766954A ZA766954B ZA 766954 B ZA766954 B ZA 766954B ZA 766954 A ZA766954 A ZA 766954A ZA 766954 A ZA766954 A ZA 766954A ZA 766954 B ZA766954 B ZA 766954B
Authority
ZA
South Africa
Prior art keywords
filters
smoking articles
improvements relating
relating
smoking
Prior art date
Application number
ZA766954A
Other languages
English (en)
Inventor
F Haslam
D Conway
H Horsewell
J Luke
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 ZA766954B publication Critical patent/ZA766954B/xx

Links

Classifications

    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; 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; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04Tobacco smoke filters characterised by their shape or structure
    • A24D3/043Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution
ZA766954A 1975-12-18 1976-11-22 Improvements relating to filters for smoking articles ZA766954B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB51922/75A GB1533568A (en) 1975-12-18 1975-12-18 Filters for smoking articles

Publications (1)

Publication Number Publication Date
ZA766954B true ZA766954B (en) 1977-10-26

Family

ID=10461941

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA766954A ZA766954B (en) 1975-12-18 1976-11-22 Improvements relating to filters for smoking articles

Country Status (12)

Country Link
JP (1) JPS5279099A (da)
AU (1) AU503990B2 (da)
BE (1) BE849482A (da)
BR (1) BR7608510A (da)
CA (1) CA1045496A (da)
CH (1) CH604577A5 (da)
DE (1) DE2654698A1 (da)
DK (1) DK568676A (da)
FI (1) FI63167C (da)
GB (1) GB1533568A (da)
NL (1) NL7613432A (da)
ZA (1) ZA766954B (da)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174719A (en) * 1977-06-29 1979-11-20 Olin Corporation Microperforated filter tip cigarette
US4232574A (en) * 1977-08-19 1980-11-11 Liggett Group Inc. Apparatus and method for providing a cigarette filter with an aeration groove
US4294265A (en) * 1980-04-04 1981-10-13 Philip Morris Incorporated Filter cigarette with inlet vent zones
GB9214267D0 (en) * 1992-07-04 1992-08-19 British American Tobacco Co Improvements relating to smoking articles
GB9321536D0 (en) * 1993-10-19 1993-12-08 British American Tobacco Co Smoking articles
BR112013008364A2 (pt) * 2010-10-06 2016-06-14 Celanese Acetate Llc filtros de fumaça para dispositivos de fumar com massas porosas tendo uma carga de partícula de carbono e uma queda de pressão encapsulada

Also Published As

Publication number Publication date
BE849482A (fr) 1977-04-15
DK568676A (da) 1977-06-19
AU503990B2 (en) 1979-09-27
FI63167B (fi) 1983-01-31
JPS5279099A (en) 1977-07-02
NL7613432A (nl) 1977-06-21
FI763453A (da) 1977-06-19
AU2001476A (en) 1978-06-01
CH604577A5 (da) 1978-09-15
CA1045496A (en) 1979-01-02
BR7608510A (pt) 1977-12-20
GB1533568A (en) 1978-11-29
DE2654698A1 (de) 1977-06-30
FI63167C (fi) 1983-05-10

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