GB1222789A - Cigarette filters - Google Patents
Cigarette filtersInfo
- Publication number
- GB1222789A GB1222789A GB48942/69A GB4894269A GB1222789A GB 1222789 A GB1222789 A GB 1222789A GB 48942/69 A GB48942/69 A GB 48942/69A GB 4894269 A GB4894269 A GB 4894269A GB 1222789 A GB1222789 A GB 1222789A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filter
- plug
- cigarette
- oct
- ram
- 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
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
-
- 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
- A24D3/025—Final operations, i.e. after the filter rod forming process
- A24D3/0262—Filter extremity shaping and compacting means
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
1,222,789. Tobacco-smoke filters. SUPLA ETABS. 6 Oct., 1969 [10 Oct., 1968], No. 48942/69. Heading A2C. A cigarette filter comprises a filter plug of initially uniform porosity which has been compacted axially to produce different degrees of density, and hence porosity, along its length within a region of the same filter material. The filter material may be cellulose fibres, synthetic fibres, crepe paper or wadding. Compaction may be effected by heat treating one or both ends of the plug, by means of a roller, or preferaby by means of a ram applied to the mouth end of the filter plug of a filter cigarette. Both ends of the plug may be compacted before uniting to a cigarette. The face of the ram may be plain, grooved or provided with grid-like ribs.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681802259 DE1802259C3 (en) | 1968-10-10 | Cigarette filters |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1222789A true GB1222789A (en) | 1971-02-17 |
Family
ID=5710169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB48942/69A Expired GB1222789A (en) | 1968-10-10 | 1969-10-06 | Cigarette filters |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS4818838B1 (en) |
AT (1) | AT291835B (en) |
FR (1) | FR2020347A1 (en) |
GB (1) | GB1222789A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019064019A1 (en) * | 2017-09-29 | 2019-04-04 | British American Tobacco (Investments) | A filter unit for a smoking article |
RU2746453C1 (en) * | 2017-09-29 | 2021-04-14 | Бритиш Америкэн Тобэкко (Инвестментс) Лимитед | Filter block for smoking product |
EP4115750A4 (en) * | 2020-03-02 | 2023-10-04 | Japan Tobacco Inc. | Filter, smoking article, and flavor inhalation article |
-
1969
- 1969-09-19 AT AT887569A patent/AT291835B/en not_active IP Right Cessation
- 1969-10-06 GB GB48942/69A patent/GB1222789A/en not_active Expired
- 1969-10-10 FR FR6934764A patent/FR2020347A1/fr not_active Withdrawn
- 1969-10-11 JP JP44081038A patent/JPS4818838B1/ja active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019064019A1 (en) * | 2017-09-29 | 2019-04-04 | British American Tobacco (Investments) | A filter unit for a smoking article |
RU2746453C1 (en) * | 2017-09-29 | 2021-04-14 | Бритиш Америкэн Тобэкко (Инвестментс) Лимитед | Filter block for smoking product |
RU2746454C1 (en) * | 2017-09-29 | 2021-04-14 | Бритиш Америкэн Тобэкко (Инвестментс) Лимитед | Filter unit for smoking product |
US11690398B2 (en) | 2017-09-29 | 2023-07-04 | British American Tobacco (Investments) Limited | Filter unit for a smoking article |
EP4115750A4 (en) * | 2020-03-02 | 2023-10-04 | Japan Tobacco Inc. | Filter, smoking article, and flavor inhalation article |
Also Published As
Publication number | Publication date |
---|---|
FR2020347A1 (en) | 1970-07-10 |
DE1802259B2 (en) | 1976-12-02 |
DE1802259A1 (en) | 1970-05-21 |
JPS4818838B1 (en) | 1973-06-08 |
AT291835B (en) | 1971-07-26 |
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