CA1047351A - Filtre a fumee de tabac (rainure itf) - Google Patents

Filtre a fumee de tabac (rainure itf)

Info

Publication number: CA1047351A
Authority: CA; Canada
Prior art keywords: filtering material; rod; smoke; bonding zone; cam
Prior art date: 1975-10-31
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

CA306,036A

Other languages

English (en)

Inventor

Richard M. Berger

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.)

Filtrona Richmond Inc

Original Assignee

American Filtrona Corp

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.)

1975-10-31

Filing date

1978-06-22

Publication date

1979-01-30

1975-10-31 Priority claimed from US05/627,858 external-priority patent/US4022221A/en

1978-06-22 Application filed by American Filtrona Corp filed Critical American Filtrona Corp

1979-01-30 Application granted granted Critical

1979-01-30 Publication of CA1047351A publication Critical patent/CA1047351A/fr

Status Expired legal-status Critical Current

Links

239000000779 smoke Substances 0.000 title claims abstract description 29
235000002637 Nicotiana tabacum Nutrition 0.000 title description 14
244000061176 Nicotiana tabacum Species 0.000 title 1
239000000463 material Substances 0.000 claims abstract description 80
238000001914 filtration Methods 0.000 claims abstract description 71
230000002093 peripheral effect Effects 0.000 claims abstract description 9
230000003213 activating effect Effects 0.000 claims abstract description 7
238000002788 crimping Methods 0.000 claims description 17
239000000543 intermediate Substances 0.000 claims description 3
238000003825 pressing Methods 0.000 claims description 2
235000019504 cigarettes Nutrition 0.000 description 19
238000004519 manufacturing process Methods 0.000 description 19
238000000034 method Methods 0.000 description 16
241000208125 Nicotiana Species 0.000 description 13
229940081735 acetylcellulose Drugs 0.000 description 11
229920002301 cellulose acetate Polymers 0.000 description 10
238000010420 art technique Methods 0.000 description 5
239000000047 product Substances 0.000 description 5
230000006870 function Effects 0.000 description 4
239000003795 chemical substances by application Substances 0.000 description 3
239000000470 constituent Substances 0.000 description 3
239000002131 composite material Substances 0.000 description 2
238000010276 construction Methods 0.000 description 2
238000011161 development Methods 0.000 description 2
230000018109 developmental process Effects 0.000 description 2
239000012467 final product Substances 0.000 description 2
239000003292 glue Substances 0.000 description 2
238000012986 modification Methods 0.000 description 2
230000004048 modification Effects 0.000 description 2
239000013618 particulate matter Substances 0.000 description 2
-1 polyethylene Polymers 0.000 description 2
238000012545 processing Methods 0.000 description 2
230000000391 smoking effect Effects 0.000 description 2
PYKLUAIDKVVEOS-RAXLEYEMSA-N (e)-n-(cyanomethoxy)benzenecarboximidoyl cyanide Chemical compound N#CCO\N=C(\C#N)C1=CC=CC=C1 PYKLUAIDKVVEOS-RAXLEYEMSA-N 0.000 description 1
ZAMLGGRVTAXBHI-UHFFFAOYSA-N 3-(4-bromophenyl)-3-[(2-methylpropan-2-yl)oxycarbonylamino]propanoic acid Chemical compound CC(C)(C)OC(=O)NC(CC(O)=O)C1=CC=C(Br)C=C1 ZAMLGGRVTAXBHI-UHFFFAOYSA-N 0.000 description 1
241000370685 Arge Species 0.000 description 1
239000004698 Polyethylene Substances 0.000 description 1
239000004743 Polypropylene Substances 0.000 description 1
241000950638 Symphysodon discus Species 0.000 description 1
238000007792 addition Methods 0.000 description 1
235000019506 cigar Nutrition 0.000 description 1
238000004891 communication Methods 0.000 description 1
238000005520 cutting process Methods 0.000 description 1
238000009826 distribution Methods 0.000 description 1
239000000835 fiber Substances 0.000 description 1
239000006260 foam Substances 0.000 description 1
239000006261 foam material Substances 0.000 description 1
238000010409 ironing Methods 0.000 description 1
HOQADATXFBOEGG-UHFFFAOYSA-N isofenphos Chemical compound CCOP(=S)(NC(C)C)OC1=CC=CC=C1C(=O)OC(C)C HOQADATXFBOEGG-UHFFFAOYSA-N 0.000 description 1
230000014759 maintenance of location Effects 0.000 description 1
229920000573 polyethylene Polymers 0.000 description 1
229920001155 polypropylene Polymers 0.000 description 1
239000000126 substance Substances 0.000 description 1

Landscapes

Cigarettes, Filters, And Manufacturing Of Filters (AREA)

CA306,036A 1975-10-31 1978-06-22 Filtre a fumee de tabac (rainure itf) Expired CA1047351A (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US05/627,858 US4022221A (en)	1975-10-31	1975-10-31	Tobacco smoke filter
CA254,767A CA1049877A (fr)	1975-10-31	1976-06-14	Filtre de fumee de tabac (interne rainure)

Publications (1)

Publication Number	Publication Date
CA1047351A true CA1047351A (fr)	1979-01-30

Family

ID=25668307

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA306,036A Expired CA1047351A (fr)	1975-10-31	1978-06-22	Filtre a fumee de tabac (rainure itf)

Country Status (1)

Country	Link
CA (1)	CA1047351A (fr)

1978
- 1978-06-22 CA CA306,036A patent/CA1047351A/fr not_active Expired

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