GB1336661A - Tobacco-smoke filters - Google Patents
Tobacco-smoke filtersInfo
- Publication number
- GB1336661A GB1336661A GB963271A GB1336661DA GB1336661A GB 1336661 A GB1336661 A GB 1336661A GB 963271 A GB963271 A GB 963271A GB 1336661D A GB1336661D A GB 1336661DA GB 1336661 A GB1336661 A GB 1336661A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- wrapper
- filter
- smoke
- paper
- 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
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
- A24D3/0283—Manufacture of tobacco smoke filters for filters with special features with means for a non-axial smoke flow
-
- 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
- A24D3/0279—Manufacture of tobacco smoke filters for filters with special features with tubes
Abstract
1336661 Tobacco-smoke filter BRITISHAMERICAN TOBACCO CO Ltd 27 March 1972 [16 April 1971] 9632/71 Heading A2C The filter comprises a tube I of smokefiltering sheet material, such as paper, spaced radially from an outer tubular wrapper 2, the tube 1 being blocked with plugs 5 at both ends, and the space between the tube 1 and the wrapper 2 being blocked around complementary arcs at opposite ends by seals 7a, 7b and blocked longitudinally by ribs 3 so that smoke entering the space 6 at one end is constrained to pass through the wall of the tube 1 twice before reaching the other, outlet, end. An apparatus for making the fiters is also disclosed in which spaced plugs 5 are wrapped in a continuous web of smoke-filter paper the edges of which are heat sealed to form a continuous tube 1. A wrapper 2 of plastics material is then extruded around the tube 1 through a cross-head die, optionally overwrapped with paper, and the continuous filter assembly is cut into quadruple filter lengths. The seals 7a, 7b are then produced by local hot pressing of the wrapper 2.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB963271 | 1971-04-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1336661A true GB1336661A (en) | 1973-11-07 |
Family
ID=9875738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB963271A Expired GB1336661A (en) | 1971-04-16 | 1972-03-27 | Tobacco-smoke filters |
Country Status (11)
Country | Link |
---|---|
US (1) | US3830244A (en) |
BE (1) | BE782056A (en) |
BR (1) | BR7202154D0 (en) |
CA (1) | CA959733A (en) |
CH (1) | CH549965A (en) |
DE (1) | DE2217436A1 (en) |
DK (1) | DK128434B (en) |
FI (1) | FI51038C (en) |
GB (1) | GB1336661A (en) |
NL (1) | NL7204815A (en) |
ZA (1) | ZA722232B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4026306A (en) * | 1975-11-06 | 1977-05-31 | American Filtrona Corporation | Tobacco smoke filter |
US4340071A (en) * | 1979-10-22 | 1982-07-20 | Smith Robert L | Change-a-bowl pipe |
US4331166A (en) * | 1980-05-02 | 1982-05-25 | Philip Morris, Incorporated | Cigarette |
DE3105456C2 (en) * | 1981-02-14 | 1985-08-14 | Fabriques de Tabac Réunies S.A., Neuchâtel | Method of making a rod-shaped, smokable article and apparatus for practicing this method |
US4492238A (en) | 1981-09-30 | 1985-01-08 | Philip Morris Incorporated | Method and apparatus for production of smoke filter components |
GB9307710D0 (en) * | 1993-04-14 | 1993-06-02 | Rothmans Benson & Hedges | Smoking apparatus-l |
US6345625B1 (en) | 1997-12-06 | 2002-02-12 | Kar Eng Chew | Filter for secondary smoke and smoking articles incorporating the same |
US7070638B2 (en) * | 2003-01-03 | 2006-07-04 | Jeanfreau Bryan S | Burp gas filtering and deodorizing device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3336928A (en) * | 1964-05-07 | 1967-08-22 | James W Haley | Smoking article |
US3370594A (en) * | 1965-02-16 | 1968-02-27 | Brown & Williamson Tobacco | Filters for tobacco smoke |
US3359988A (en) * | 1965-04-21 | 1967-12-26 | Osborne M Thomson | Filter cigarette |
US3394713A (en) * | 1965-10-24 | 1968-07-30 | Philip Morris Inc | Cigarette filter |
US3502087A (en) * | 1968-07-05 | 1970-03-24 | Ernest J Romano | Cigarette filter |
-
1972
- 1972-03-27 GB GB963271A patent/GB1336661A/en not_active Expired
- 1972-03-31 US US00240174A patent/US3830244A/en not_active Expired - Lifetime
- 1972-04-04 ZA ZA722232A patent/ZA722232B/en unknown
- 1972-04-06 CA CA139,021A patent/CA959733A/en not_active Expired
- 1972-04-11 NL NL7204815A patent/NL7204815A/xx unknown
- 1972-04-12 DE DE19722217436 patent/DE2217436A1/en active Pending
- 1972-04-12 BR BR722154A patent/BR7202154D0/en unknown
- 1972-04-12 FI FI721024A patent/FI51038C/en active
- 1972-04-13 BE BE782056A patent/BE782056A/en unknown
- 1972-04-14 CH CH548972A patent/CH549965A/en not_active IP Right Cessation
- 1972-04-14 DK DK182272AA patent/DK128434B/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE2217436A1 (en) | 1972-10-26 |
NL7204815A (en) | 1972-10-18 |
BE782056A (en) | 1972-07-31 |
BR7202154D0 (en) | 1973-07-10 |
DK128434B (en) | 1974-05-06 |
US3830244A (en) | 1974-08-20 |
CH549965A (en) | 1974-06-14 |
ZA722232B (en) | 1972-12-27 |
FI51038B (en) | 1976-06-30 |
CA959733A (en) | 1974-12-24 |
FI51038C (en) | 1976-10-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |