IE830121L - Cigarette smoke filter - Google Patents

Cigarette smoke filter

Info

Publication number
IE830121L
IE830121L IE830121A IE12183A IE830121L IE 830121 L IE830121 L IE 830121L IE 830121 A IE830121 A IE 830121A IE 12183 A IE12183 A IE 12183A IE 830121 L IE830121 L IE 830121L
Authority
IE
Ireland
Prior art keywords
plug
filter
smoke
ducts
register
Prior art date
Application number
IE830121A
Other versions
IE53810B1 (en
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 IE830121L publication Critical patent/IE830121L/en
Publication of IE53810B1 publication Critical patent/IE53810B1/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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • 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
    • A24D3/0245—Filter rod forming processes by winding, e.g. spirally

Landscapes

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

Abstract

A smoke filter (3) for a smoking article (e.g. a cigarette) comprises a filter plug (3) having ducts (5) extending part way along the plug from the mouth end thereof, and opening in register with inlets (9) through wrapping means (7) around the plug (4) to provide segregated peripheral venting of the filter. Further apertures (10) in the wrapping means (7) communicate directly with the filter plug away from the ducts (5), to permit ambient air to enter the filter plug to mix with and dilute the smoke being filtered within the plug. In one embodiment of the invention mixing of ambient air with smoke being filtered within the plug is facilitated by provision of a circumferentially extending channel (13) which is in register with said further apertures. <IMAGE> [GB2116824A]
IE121/83A 1982-02-02 1983-01-21 Improvements relating to smoke filters IE53810B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8202943 1982-02-02

Publications (2)

Publication Number Publication Date
IE830121L true IE830121L (en) 1983-08-02
IE53810B1 IE53810B1 (en) 1989-03-01

Family

ID=10528054

Family Applications (1)

Application Number Title Priority Date Filing Date
IE121/83A IE53810B1 (en) 1982-02-02 1983-01-21 Improvements relating to smoke filters

Country Status (39)

Country Link
JP (1) JPS58165780A (en)
KR (1) KR870001748B1 (en)
AT (1) AT384151B (en)
AU (1) AU553753B2 (en)
BE (1) BE895773A (en)
BG (1) BG40312A3 (en)
BR (1) BR8300490A (en)
CA (1) CA1192468A (en)
CH (1) CH657755A5 (en)
CS (1) CS251073B2 (en)
DE (1) DE3303299A1 (en)
DK (1) DK158369C (en)
EG (1) EG16128A (en)
ES (1) ES278854Y (en)
FI (1) FI71219C (en)
FR (1) FR2520594A1 (en)
GB (1) GB2116824B (en)
HK (1) HK28786A (en)
HU (1) HU188249B (en)
IE (1) IE53810B1 (en)
IL (1) IL67801A (en)
IN (1) IN157633B (en)
IT (1) IT1163071B (en)
KE (1) KE3597A (en)
LU (1) LU84618A1 (en)
MX (1) MX154669A (en)
MY (1) MY8700718A (en)
NL (1) NL185601C (en)
NO (1) NO155323C (en)
NZ (1) NZ203131A (en)
PH (1) PH19514A (en)
PL (1) PL138732B1 (en)
RO (1) RO87087A (en)
SE (2) SE453150B (en)
SG (1) SG92285G (en)
TR (1) TR21762A (en)
YU (1) YU42067B (en)
ZA (1) ZA83651B (en)
ZW (1) ZW2383A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8415972D0 (en) * 1984-06-22 1984-07-25 British American Tobacco Co Smoking article mouthpiece elements
JPH0588056U (en) * 1991-12-04 1993-11-26 河村電器産業株式会社 DTMF signal amplification circuit
CN1748591A (en) * 2005-11-07 2006-03-22 夏侯晓雷 Filter tip
GB201213786D0 (en) 2012-08-01 2012-09-12 Filtrona Filter Prod Dev Co Tobacco smoke filter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596663A (en) * 1969-05-29 1971-08-03 Lorillard Co P Ventilated smoking article
IL36205A (en) * 1970-02-21 1973-05-31 Cigarette Components Ltd Device for treating tobacco smoke and method for its manufacture
GB1308661A (en) * 1970-02-21 1973-02-21 Cigarette Components Ltd Device for treating tobacco smoke
GB1508084A (en) * 1976-03-17 1978-04-19 British American Tobacco Co Tobacco-smoke filters
US4256122A (en) * 1979-04-11 1981-03-17 Brown & Williamson Tobacco Corporation Cigarette filter
GB2095532B (en) * 1981-03-27 1985-06-19 Filtrona Ltd Ventilated and corrugated smoke filter

Also Published As

Publication number Publication date
ZA83651B (en) 1983-10-26
NL8300377A (en) 1983-09-01
ATA20083A (en) 1987-03-15
GB2116824A (en) 1983-10-05
MX154669A (en) 1987-11-16
FI71219B (en) 1986-09-09
IT8319393A0 (en) 1983-02-02
IT1163071B (en) 1987-04-08
YU23483A (en) 1985-10-31
FI830209A0 (en) 1983-01-21
YU42067B (en) 1988-04-30
GB2116824B (en) 1985-07-24
SE453150B (en) 1988-01-18
NL185601C (en) 1990-06-01
RO87087A (en) 1986-07-30
FR2520594B1 (en) 1985-04-19
ZW2383A1 (en) 1983-08-03
AU1077583A (en) 1983-08-11
JPS58165780A (en) 1983-09-30
TR21762A (en) 1985-06-17
ES278854Y (en) 1985-03-01
PL240394A1 (en) 1983-08-15
HU188249B (en) 1986-03-28
HK28786A (en) 1986-04-25
NL185601B (en) 1990-01-02
CS251073B2 (en) 1987-06-11
DK39083A (en) 1983-08-03
NZ203131A (en) 1985-07-31
NO155323B (en) 1986-12-08
CS68383A2 (en) 1985-08-15
EG16128A (en) 1990-10-30
AU553753B2 (en) 1986-07-24
DE3303299A1 (en) 1983-08-11
BG40312A3 (en) 1986-11-14
CH657755A5 (en) 1986-09-30
NO830331L (en) 1983-08-03
SE8300441L (en) 1983-08-03
SE8300441D0 (en) 1983-01-28
FR2520594A1 (en) 1983-08-05
AT384151B (en) 1987-10-12
IL67801A (en) 1985-11-29
JPH0236225B2 (en) 1990-08-16
DK158369B (en) 1990-05-14
IT8319393A1 (en) 1984-08-02
LU84618A1 (en) 1983-09-08
PH19514A (en) 1986-05-14
MY8700718A (en) 1987-12-31
KR840003397A (en) 1984-09-08
KE3597A (en) 1986-02-07
BR8300490A (en) 1983-11-01
KR870001748B1 (en) 1987-10-06
DK39083D0 (en) 1983-02-01
IE53810B1 (en) 1989-03-01
ES278854U (en) 1984-08-01
FI71219C (en) 1986-12-19
GB8300838D0 (en) 1983-02-16
FI830209L (en) 1983-08-03
PL138732B1 (en) 1986-10-31
NO155323C (en) 1987-03-18
IN157633B (en) 1986-05-10
BE895773A (en) 1983-05-30
IL67801A0 (en) 1983-05-15
SG92285G (en) 1987-09-18
CA1192468A (en) 1985-08-27
DK158369C (en) 1990-10-08

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Legal Events

Date Code Title Description
MM4A Patent lapsed