GB1420908A - Ventilated filter-tip tobacco-smoking article - Google Patents

Ventilated filter-tip tobacco-smoking article

Info

Publication number
GB1420908A
GB1420908A GB4195874A GB4195874A GB1420908A GB 1420908 A GB1420908 A GB 1420908A GB 4195874 A GB4195874 A GB 4195874A GB 4195874 A GB4195874 A GB 4195874A GB 1420908 A GB1420908 A GB 1420908A
Authority
GB
United Kingdom
Prior art keywords
filter
coating
smoking article
cigars
impervious
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4195874A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British American Tobacco Investments Ltd
Original Assignee
British American Tobacco Co Ltd
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 Ltd filed Critical British American Tobacco Co Ltd
Priority to GB4195874A priority Critical patent/GB1420908A/en
Publication of GB1420908A publication Critical patent/GB1420908A/en
Expired legal-status Critical Current

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

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

1420908 Cigarettes; cigars &c BRITISH-AMERICAN TOBACCO CO Ltd 26 Sept 1974 41958/74 Addition to 1349@17 Heading A2C A ventilated cigarette includes a filter plug 22 covered with a uniformly porous wrap 26, at least a portion of the enclosed filter being overwrapped with a surface partly provided with an air-impervious coating, other than a coating adhering the wrapper and envelope together so that a pre-selected region is impervious and the remainder is coating free, whereby the filter has a ventilation index of from 0.5 to 20 cm/sec. The ventilation index is related to the throughput of air under standardised conditions. The ventilation system is applicable to cigars, cigarillos and cheroots.
GB4195874A 1974-09-26 1974-09-26 Ventilated filter-tip tobacco-smoking article Expired GB1420908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4195874A GB1420908A (en) 1974-09-26 1974-09-26 Ventilated filter-tip tobacco-smoking article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4195874A GB1420908A (en) 1974-09-26 1974-09-26 Ventilated filter-tip tobacco-smoking article

Publications (1)

Publication Number Publication Date
GB1420908A true GB1420908A (en) 1976-01-14

Family

ID=10422161

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4195874A Expired GB1420908A (en) 1974-09-26 1974-09-26 Ventilated filter-tip tobacco-smoking article

Country Status (1)

Country Link
GB (1) GB1420908A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2902913A1 (en) * 1979-01-26 1980-07-31 Bat Cigarettenfab Gmbh METHOD FOR REGULATING THE VENTILATION DEGREE OF A FILTER CIGARETTE
WO2010051076A1 (en) * 2008-10-31 2010-05-06 R.J. Reynolds Tobacco Company Tipping materials for filtered cigarettes
US9247771B2 (en) 2011-11-08 2016-02-02 British American Tobacco (Investments) Limited Smoking article

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2902913A1 (en) * 1979-01-26 1980-07-31 Bat Cigarettenfab Gmbh METHOD FOR REGULATING THE VENTILATION DEGREE OF A FILTER CIGARETTE
WO2010051076A1 (en) * 2008-10-31 2010-05-06 R.J. Reynolds Tobacco Company Tipping materials for filtered cigarettes
US9247771B2 (en) 2011-11-08 2016-02-02 British American Tobacco (Investments) Limited Smoking article

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee