SE8300442D0 - IMPROVEMENTS RELATING TO TOBACCO SMOKE FILTERS - Google Patents

IMPROVEMENTS RELATING TO TOBACCO SMOKE FILTERS

Info

Publication number
SE8300442D0
SE8300442D0 SE8300442A SE8300442A SE8300442D0 SE 8300442 D0 SE8300442 D0 SE 8300442D0 SE 8300442 A SE8300442 A SE 8300442A SE 8300442 A SE8300442 A SE 8300442A SE 8300442 D0 SE8300442 D0 SE 8300442D0
Authority
SE
Sweden
Prior art keywords
filter plug
grooves
tobacco smoke
improvements relating
groove
Prior art date
Application number
SE8300442A
Other languages
Swedish (sv)
Other versions
SE8300442L (en
Inventor
J A Luke
Original Assignee
Brown & Williamson Tobacco
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 Brown & Williamson Tobacco filed Critical Brown & Williamson Tobacco
Publication of SE8300442D0 publication Critical patent/SE8300442D0/en
Publication of SE8300442L publication Critical patent/SE8300442L/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
    • A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution
    • 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

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

A filter for a smoking article such as a cigarette, comprising several grooves (2) of varying depth between a shallow inlet end (3) and a deep outlet end (4) thereof, the outlet end face (8) being air permeable to an extent greater than are the floor (7) or the sides of each groove (2). A tipping (5) enwrapping the filter plug (1) has ventilation perforations (6) in the region of the inlet end of each groove. Alternatively, the grooves may have their median axes in a plane which is perpendicular to the axis of the filter plug, whereby the grooves extend circumferentially of the filter plug between the shallow inlet ends and the deep outlet ends. <IMAGE>
SE8300442A 1982-02-02 1983-01-28 IMPROVED SMOKE FILTER SE8300442L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8202944 1982-02-02

Publications (2)

Publication Number Publication Date
SE8300442D0 true SE8300442D0 (en) 1983-01-28
SE8300442L SE8300442L (en) 1983-08-03

Family

ID=10528055

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8300442A SE8300442L (en) 1982-02-02 1983-01-28 IMPROVED SMOKE FILTER

Country Status (31)

Country Link
JP (1) JPS58165781A (en)
KR (1) KR840003398A (en)
AU (1) AU551826B2 (en)
BE (1) BE895774A (en)
BR (1) BR8300491A (en)
DE (1) DE3303300A1 (en)
DK (1) DK39183A (en)
ES (1) ES278855Y (en)
FI (1) FI830210L (en)
FR (1) FR2520596A1 (en)
GB (1) GB2115678B (en)
HK (1) HK28586A (en)
HU (1) HU188419B (en)
IL (1) IL67732A (en)
IN (1) IN157857B (en)
IT (1) IT1163072B (en)
KE (1) KE3599A (en)
LU (1) LU84619A1 (en)
MY (1) MY8700717A (en)
NL (1) NL8300378A (en)
NO (1) NO830332L (en)
NZ (1) NZ203132A (en)
PH (1) PH19162A (en)
PL (1) PL137239B1 (en)
RO (1) RO87086A (en)
SE (1) SE8300442L (en)
SG (1) SG92385G (en)
TR (1) TR21446A (en)
YU (1) YU23583A (en)
ZA (1) ZA83653B (en)
ZW (1) ZW2283A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8530362D0 (en) * 1985-12-10 1986-01-22 Gallaher Ltd Filter device
GB8531659D0 (en) * 1985-12-23 1986-02-05 British American Tobacco Co Smoking articles

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2109761A5 (en) * 1970-10-05 1972-05-26 Eastman Kodak Co
CA1096737A (en) * 1977-03-14 1981-03-03 Jan Van Tilburg Smoke filters
US4174719A (en) * 1977-06-29 1979-11-20 Olin Corporation Microperforated filter tip cigarette
US4256122A (en) * 1979-04-11 1981-03-17 Brown & Williamson Tobacco Corporation Cigarette filter

Also Published As

Publication number Publication date
SE8300442L (en) 1983-08-03
YU23583A (en) 1985-10-31
JPS58165781A (en) 1983-09-30
ZA83653B (en) 1983-10-26
HU188419B (en) 1986-04-28
LU84619A1 (en) 1983-09-08
IL67732A0 (en) 1983-05-15
KR840003398A (en) 1984-09-08
PH19162A (en) 1986-01-16
TR21446A (en) 1984-07-01
ES278855U (en) 1985-04-16
GB2115678B (en) 1985-08-14
IL67732A (en) 1987-07-31
IT8319394A1 (en) 1984-08-02
GB2115678A (en) 1983-09-14
FI830210A0 (en) 1983-01-21
NO830332L (en) 1983-08-03
RO87086A (en) 1986-07-30
AU1077683A (en) 1983-08-11
DK39183A (en) 1983-08-03
KE3599A (en) 1986-02-07
JPS6126351B2 (en) 1986-06-20
ES278855Y (en) 1985-11-16
DK39183D0 (en) 1983-02-01
GB8300839D0 (en) 1983-02-16
BR8300491A (en) 1983-11-01
PL137239B1 (en) 1986-05-31
SG92385G (en) 1987-09-18
FI830210L (en) 1983-08-03
FR2520596B1 (en) 1985-03-22
PL240393A1 (en) 1983-08-15
BE895774A (en) 1983-05-30
FR2520596A1 (en) 1983-08-05
DE3303300A1 (en) 1983-08-11
IT8319394A0 (en) 1983-02-02
ZW2283A1 (en) 1983-08-03
IT1163072B (en) 1987-04-08
NL8300378A (en) 1983-09-01
IN157857B (en) 1986-07-12
MY8700717A (en) 1987-12-31
NZ203132A (en) 1985-03-20
AU551826B2 (en) 1986-05-15
HK28586A (en) 1986-04-25

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