ZA716273B - Improvements relating to tobacco-smoke filters - Google Patents

Improvements relating to tobacco-smoke filters

Info

Publication number
ZA716273B
ZA716273B ZA716273A ZA716273A ZA716273B ZA 716273 B ZA716273 B ZA 716273B ZA 716273 A ZA716273 A ZA 716273A ZA 716273 A ZA716273 A ZA 716273A ZA 716273 B ZA716273 B ZA 716273B
Authority
ZA
South Africa
Prior art keywords
tobacco
improvements relating
smoke filters
smoke
filters
Prior art date
Application number
ZA716273A
Other languages
English (en)
Inventor
F Haslam
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 ZA716273B publication Critical patent/ZA716273B/xx

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
ZA716273A 1970-10-07 1971-09-20 Improvements relating to tobacco-smoke filters ZA716273B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4770770 1970-10-07

Publications (1)

Publication Number Publication Date
ZA716273B true ZA716273B (en) 1972-05-31

Family

ID=10445984

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA716273A ZA716273B (en) 1970-10-07 1971-09-20 Improvements relating to tobacco-smoke filters

Country Status (7)

Country Link
AU (1) AU460006B2 (fr)
BE (1) BE773622A (fr)
CA (1) CA939225A (fr)
CH (1) CH544514A (fr)
GB (1) GB1331096A (fr)
NL (1) NL172021B (fr)
ZA (1) ZA716273B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282890A (en) * 1978-03-13 1981-08-11 Celanese Corporation Open cell structure foamed cellulose acetate filters
WO2009143338A2 (fr) † 2008-05-21 2009-11-26 R.J. Reynolds Tobacco Company Appareil et procédé associé pour former un composant de filtre d’un article à fumer et articles à fumer qui en sont constitués
GB201112539D0 (en) 2011-07-21 2011-08-31 British American Tobacco Co Porous carbon and methods of production thereof
US11291242B2 (en) 2019-08-28 2022-04-05 Aiger Group Ag Apparatus and method for forming a smoke filter

Also Published As

Publication number Publication date
AU3388671A (en) 1973-03-29
CH544514A (fr) 1973-11-30
DE2149434A1 (de) 1972-05-10
CA939225A (en) 1974-01-01
AU460006B2 (en) 1975-04-10
DE2149434B2 (de) 1976-05-06
GB1331096A (en) 1973-09-19
BE773622A (fr) 1972-01-31
NL172021B (nl) 1983-02-01
NL7113503A (fr) 1972-04-11

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