FR2423992A1 - CIGARETTE FILTER - Google Patents
CIGARETTE FILTERInfo
- Publication number
- FR2423992A1 FR2423992A1 FR7910781A FR7910781A FR2423992A1 FR 2423992 A1 FR2423992 A1 FR 2423992A1 FR 7910781 A FR7910781 A FR 7910781A FR 7910781 A FR7910781 A FR 7910781A FR 2423992 A1 FR2423992 A1 FR 2423992A1
- Authority
- FR
- France
- Prior art keywords
- suction
- passage
- filter
- smoke
- force
- 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.)
- Withdrawn
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
- A24D3/041—Tobacco smoke filters characterised by their shape or structure with adjustable means for modifying the degree of filtration of the filter
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
BOUT FILTRANT POUR CIGARETTES. IL EST CARACTERISE PAR UN PASSAGE 3 TRAVERSANT LE FILTRE SUIVANT SON AXE ET OPPOSANT A L'AIR UNE RESISTANCE TRES INFERIEURE A LA RESISTANCE DU RESTE DU FILTRE 2, ET UN DISPOSITIF 4, 5, 6 ASSURANT QUE CE PASSAGE SOIT UTILISE EN DERIVATION DU FILTRE LORSQUE L'ASPIRATION DU FUMEUR DEPASSE UNE FORCE DONNEE, DE MANIERE QUE SI LA FORCE D'ASPIRATION EST FAIBLE, LE PASSAGE RESTE FERME, TANDIS QUE SI ELLE DEPASSE UNE FORCE DONNEE, LE PASSAGE S'OUVRE EN NE PERMETTANT PAS A SA SORTIE UNE DIMINUTION SENSIBLE DU COURANT DE FUMEE, C'EST-A-DIRE UN EFFET D'ETRANGLEMENT. TANT QUE LA FORCE D'ASPIRATION DE LA FUMEE RESTE FAIBLE (ASPIRATION DITE PAR REFLEXE), LA TOTALITE OU LA QUASI-TOTALITE DE LA FUMEE PASSE PAR LE FILTRE, ALORS QU'AU COURS D'UNE ASPIRATION FORTE ET PROFONDE, LA QUASI-TOTALITE DE LA FUMEE PASSE PAR LE PASSAGE ET EST INHALEE SANS AVOIR ETE FILTREE.FILTER TIP FOR CIGARETTES. IT IS CHARACTERIZED BY A PASSAGE 3 THROUGH THE FILTER FOLLOWING ITS AXIS AND OPPOSING TO THE AIR A RESISTANCE VERY LOWER TO THE RESISTANCE OF THE REMAINDER OF THE FILTER 2, AND A DEVICE 4, 5, 6 ENSURING THAT THIS PASSAGE IS USED AS A DERIVATIVE OF THE FILTER WHEN THE SMOKER'S SUCTION EXCEEDS A GIVEN FORCE, SO THAT IF THE SUCTION FORCE IS WEAK, THE PASSAGE REMAINS CLOSED, WHILE IF IT EXCEEDS A GIVEN FORCE, THE PASSAGE OPENS WITHOUT ALLOWING ITS OUTPUT. SENSITIVE DECREASE IN SMOKE CURRENT, THAT IS, A STRENGTHENING EFFECT. WHILE THE FORCE OF SUCTION OF THE SMOKE REMAINS WEAK (SUCTION AS REFLEX), ALL OR ALMOST ALL OF THE SMOKE PASSES THROUGH THE FILTER, WHILE DURING A STRONG AND DEEP SUCTION, THE QUASI- ALL OF THE SMOKE PASSES THROUGH THE PASSAGE AND IS INHALED WITHOUT BEING FILTERED.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7804641A NL7804641A (en) | 1978-04-28 | 1978-04-28 | Cigarette filter tip mouthpiece - has passage through filter opened by excessive suction to act as by=pass |
NL7805408A NL7805408A (en) | 1978-05-18 | 1978-05-18 | Cigarette filter tip mouthpiece - has passage through filter opened by excessive suction to act as by=pass |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2423992A1 true FR2423992A1 (en) | 1979-11-23 |
Family
ID=26645413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7910781A Withdrawn FR2423992A1 (en) | 1978-04-28 | 1979-04-27 | CIGARETTE FILTER |
Country Status (9)
Country | Link |
---|---|
AU (1) | AU4627179A (en) |
BE (1) | BE875906A (en) |
DE (1) | DE2916431A1 (en) |
DK (1) | DK176379A (en) |
FR (1) | FR2423992A1 (en) |
GB (1) | GB2020537A (en) |
IT (2) | IT7921444V0 (en) |
LU (1) | LU81200A1 (en) |
NL (1) | NL7902870A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4357950A (en) * | 1980-05-27 | 1982-11-09 | American Filtrona Corporation | Tobacco smoke filter having improved tar/carbon monoxide ratio |
DE3616617A1 (en) * | 1985-05-20 | 1986-11-20 | Tobacco Research and Development Institute Ltd., Zug | CIGARETTE |
GB2490732A (en) * | 2011-05-13 | 2012-11-14 | British American Tobacco Co | Filter for a smoking article |
CN103485566B (en) * | 2013-09-30 | 2016-01-20 | 沧州市华油飞达石油装备有限公司 | A kind of movable barracks with venting of dust explosion function |
GB201411619D0 (en) | 2014-06-30 | 2014-08-13 | British American Tobacco Co | Flow control device |
AR108880A1 (en) | 2016-06-27 | 2018-10-03 | Philip Morris Products Sa | ARTICLE TO SMOKE WITH ADJUSTMENT OF COMBINED VENTILATION AND FILTRATION EFFICIENCY |
-
1979
- 1979-04-11 NL NL7902870A patent/NL7902870A/en not_active Application Discontinuation
- 1979-04-23 AU AU46271/79A patent/AU4627179A/en not_active Abandoned
- 1979-04-24 DE DE19792916431 patent/DE2916431A1/en not_active Withdrawn
- 1979-04-27 BE BE2/57758A patent/BE875906A/en unknown
- 1979-04-27 GB GB7914757A patent/GB2020537A/en not_active Withdrawn
- 1979-04-27 FR FR7910781A patent/FR2423992A1/en not_active Withdrawn
- 1979-04-27 DK DK176379A patent/DK176379A/en unknown
- 1979-04-27 IT IT7921444U patent/IT7921444V0/en unknown
- 1979-04-27 LU LU81200A patent/LU81200A1/en unknown
- 1979-04-27 IT IT22224/79A patent/IT1112511B/en active
Also Published As
Publication number | Publication date |
---|---|
LU81200A1 (en) | 1979-11-07 |
IT7921444V0 (en) | 1979-04-27 |
IT7922224A0 (en) | 1979-04-27 |
IT1112511B (en) | 1986-01-20 |
GB2020537A (en) | 1979-11-21 |
DE2916431A1 (en) | 1979-11-08 |
DK176379A (en) | 1979-10-29 |
BE875906A (en) | 1979-10-29 |
NL7902870A (en) | 1979-10-30 |
AU4627179A (en) | 1980-01-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |