US3320960A - Filter tips for cigarettes - Google Patents

Filter tips for cigarettes Download PDF

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Publication number
US3320960A
US3320960A US426582A US42658265A US3320960A US 3320960 A US3320960 A US 3320960A US 426582 A US426582 A US 426582A US 42658265 A US42658265 A US 42658265A US 3320960 A US3320960 A US 3320960A
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US
United States
Prior art keywords
facing
wrapper
plugs
filter
inner face
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 - Lifetime
Application number
US426582A
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English (en)
Inventor
Molins Desmond Walter
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.)
Molins Machine Co Ltd
Original Assignee
Molins Machine 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 Molins Machine Co Ltd filed Critical Molins Machine Co Ltd
Application granted granted Critical
Publication of US3320960A publication Critical patent/US3320960A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • filter tips for cigarettes have most frequently contained simple mechanical ltering media, e.g. paper or cotton wool, but recently increased demand for more efiicient filtration has led to consideration of other media and in particular eomminuted (i.e. powdered or granulated) materials, notably granulated carbon.
  • simple mechanical ltering media e.g. paper or cotton wool
  • eomminuted (i.e. powdered or granulated) materials notably granulated carbon.
  • a filter tip containing carbon granules needs to have two short conventional filter plugs within an enclosing paper wrapper, the plugs and wrapper enclosing a space serving to receive the carbon granules.
  • Such tips may be manufactured on a machine of the continuous rod type which places plugs at suitably spaced intervals on a moving web of wrapping paper, carried by a conveyor belt, and thereafter feeding the web with the plugs through a so-called garniture in which stationary deiiector blades cause the paper first to assume a U formation and then be folded into a cylinder enclosing the plugs; the paper is of course overlapped and supplied with adhesive along one longitudinal edge portion as the cylindrical form is approached so as to provide a properly sealed seam to close the cylinder.
  • Carbon granules are fed into each of the spaces between successive plugs when the paper adjoining such space has been brought to the U formation but before any overlap of the paper edges has been produced.
  • a composite filter tip for cigarettes comprising two filter plugs held in axially aligned but spaced relation to one another by a paper or like wrapper forming a tube enclosing both said plugs and comminuted (i.e. granulated or powdered) filter material retained within said wrapper in the space between said plugs, including a facing of resilient or deformable material attached to and covering at least part of the inner face of the wrapper, the thickness of said facing being such in relation to the quantity of filter material that the facing is at least slightly compressed so that said facing is pressed against said part of the inner face of the wrapper to oppose passage of smoke therebetween.
  • the material employed for said facing may for example be crepe paper, or a foamed synthetic plastic material. It will be appreciated that, so long as some compression of the facing is obtained as specified above, the granulated or powdered material must fill the space within the part of the wrapper carrying the facing, hence smoke must pass through said material in travelling from one plug ice N to the other.
  • the facing material must of course be impermeable, but this requirement is not absolute, e.g. crepe paper will allow passage of smoke to a certain extent; the material for the facing must in practice be selected on the basis that it should have a substantially greater resistance to passage of smoke than is offered by the granulated or powdered filter material to be used.
  • FIGURE 1 shows in section a filter tip with a facing on the inner face of its wrapper
  • FIGURE 2 shows a modification of the tip of FIG- URE l
  • FIGURE 3 shows a modification of the tip of FIG- URE 1.
  • a tubular paper wrapper l encloses two filter plugs 2, holding said plugs in axially aligned but spaced relation.
  • the inner face of the wrapper 1 over that part of its length which surrounds the space between the plugs 2, has adhesively secured to it a facing 3 of crepe paper.
  • Said space is filled with granulated carbon 4, in such quantity that the crepe paper facing 3 is slightly compressed and hence pressed against the inner face of the wrapper 1 to provide a seal opposing passage of smoke.
  • smoke may not pass between the plugs 2 without passing through the granulated carbon 4, except by passing between the fibres of the facing 3 which offer so much greater resistance to :such passage than does the granulated carbon that in practice no significant proportion of the smoke will pass through the facing.
  • FIGURE 2 shows a filter tip generally similar to that of FIGURE l but here the facing 3 does not cover the whole of the inner face of wrapper 1 surrounding the space in which the granulated carbon 4 is accommodated; instead two rings of facing 3a, 3b, are provided, adjacent to the plugs 2, leaving uncovered a central annular zone 5 of the inner face of the wrapper.
  • the facing need not extend over the whole of the part of the inner face of the wrapper surrounding the space containing the granulated carbon, but an annular strip of said inner face may be left uncovered adjacent to each plug, as illustrated in FIGURE 3.
  • a composite filter tip for cigarettes comprising two ⁇ filter plugs, a wrapper forming a tube enclosing both plugs to hold the latter in axially aligned but spaced relation to one another, comminuted filter material retained within said wrapper in the space between said plugs, and a facing of deformable material attached to and covering at least part of the inner face of the wrapper, the thickness of said facing being such in relation to the quantity of filter material that the facing is at least slightly compressed so that said facing is pressed against said part of the inner face of the wrapper to oppose passage of smoke therebetween.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
US426582A 1964-02-07 1965-01-19 Filter tips for cigarettes Expired - Lifetime US3320960A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5370/64A GB1099922A (en) 1964-02-07 1964-02-07 Improvements in or relating to filter tips for cigarettes

Publications (1)

Publication Number Publication Date
US3320960A true US3320960A (en) 1967-05-23

Family

ID=9794847

Family Applications (1)

Application Number Title Priority Date Filing Date
US426582A Expired - Lifetime US3320960A (en) 1964-02-07 1965-01-19 Filter tips for cigarettes

Country Status (5)

Country Link
US (1) US3320960A (xx)
BE (1) BE658776A (xx)
CH (1) CH430547A (xx)
DE (2) DE6606277U (xx)
GB (1) GB1099922A (xx)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3504678A (en) * 1967-09-15 1970-04-07 Molins Machine Co Ltd Mouthpieces for cigarettes
US4373539A (en) * 1981-09-25 1983-02-15 Innacelli Frank L Tobacco smoke filter
WO1984002637A1 (en) * 1983-01-14 1984-07-19 Frank L Innacelli Tobacco smoke filter
US4889143A (en) * 1986-05-14 1989-12-26 R. J. Reynolds Tobacco Company Cigarette rods and filters containing strands provided from sheet-like materials
DE4118815A1 (de) * 1991-06-07 1992-12-10 Bat Cigarettenfab Gmbh Cigarettenfilter und verfahren zu seiner herstellung
US20050066983A1 (en) * 2003-09-30 2005-03-31 Clark Melissa Ann Filtered cigarette incorporating an adsorbent material
US20050066981A1 (en) * 2003-09-30 2005-03-31 Crooks Evon Llewellyn Filtered cigarette incorporating an adsorbent material
US20050066980A1 (en) * 2003-09-30 2005-03-31 Crooks Evon Llewellyn Filtered cigarette incorporating an adsorbent material
US20050066984A1 (en) * 2003-09-30 2005-03-31 Crooks Evon Llewellyn Filtered cigarette incorporating an adsorbent material
US20050066982A1 (en) * 2003-09-30 2005-03-31 Clark Melissa Ann Filtered cigarette incorporating an adsorbent material
US20070056600A1 (en) * 2005-09-14 2007-03-15 R. J. Reynolds Tobacco Company Filtered smoking article
US8739802B2 (en) 2006-10-02 2014-06-03 R.J. Reynolds Tobacco Company Filtered cigarette

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811451A (en) * 1972-09-11 1974-05-21 American Filtrona Corp Tobacco smoke filter
DE4205658A1 (de) * 1992-02-25 1993-08-26 Reemtsma H F & Ph Ventilierte filtercigarette

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB377147A (en) * 1931-04-28 1932-07-21 Desmond Walter Molins Improvements in cigarettes
US2064239A (en) * 1928-11-20 1936-12-15 Aivaz Boris Smoke filter plug or wad for cigarette paper tubes
GB741416A (en) * 1951-12-21 1955-12-07 Hedwig Gamble Improvements in or relating to filters for mouthpiece cigarettes and other smoking purposes
US2815760A (en) * 1951-12-24 1957-12-10 Schreus Hans Theo Tobacco smoke filter
US3079926A (en) * 1958-10-24 1963-03-05 Harry R Litchfield Filters

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1062601B (de) * 1953-02-28 1959-07-30 Hauni Werke Koerber & Co Kg Verfahren und Maschine zum Herstellen von Mehrfiltermundstueckzigaretten od. dgl.
FR1101759A (fr) * 1954-03-23 1955-10-11 Bout amovible filtrant perfectionné pour cigarette ou cigare
GB753278A (en) * 1954-06-03 1956-07-18 Jose Mazar Barnett Cigarette with filter
CH349527A (de) * 1955-08-09 1960-10-15 Max Dr Stauber Filterpatrone für Tabakrauch
DE1877942U (de) * 1962-06-13 1963-08-14 Hauni Werke Koerber & Co Kg Zigarette.
DE1892093U (de) * 1964-01-17 1964-04-30 Werner Baehr Filter fuer zigaretten od. dgl. mit drosselstellen, kondensationshohlraeumen und prallflaechen.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064239A (en) * 1928-11-20 1936-12-15 Aivaz Boris Smoke filter plug or wad for cigarette paper tubes
GB377147A (en) * 1931-04-28 1932-07-21 Desmond Walter Molins Improvements in cigarettes
GB741416A (en) * 1951-12-21 1955-12-07 Hedwig Gamble Improvements in or relating to filters for mouthpiece cigarettes and other smoking purposes
US2815760A (en) * 1951-12-24 1957-12-10 Schreus Hans Theo Tobacco smoke filter
US3079926A (en) * 1958-10-24 1963-03-05 Harry R Litchfield Filters

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3504678A (en) * 1967-09-15 1970-04-07 Molins Machine Co Ltd Mouthpieces for cigarettes
US4373539A (en) * 1981-09-25 1983-02-15 Innacelli Frank L Tobacco smoke filter
WO1984002637A1 (en) * 1983-01-14 1984-07-19 Frank L Innacelli Tobacco smoke filter
US4889143A (en) * 1986-05-14 1989-12-26 R. J. Reynolds Tobacco Company Cigarette rods and filters containing strands provided from sheet-like materials
DE4118815A1 (de) * 1991-06-07 1992-12-10 Bat Cigarettenfab Gmbh Cigarettenfilter und verfahren zu seiner herstellung
US20050066984A1 (en) * 2003-09-30 2005-03-31 Crooks Evon Llewellyn Filtered cigarette incorporating an adsorbent material
US7240678B2 (en) 2003-09-30 2007-07-10 R. J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
US20050066980A1 (en) * 2003-09-30 2005-03-31 Crooks Evon Llewellyn Filtered cigarette incorporating an adsorbent material
US20050066983A1 (en) * 2003-09-30 2005-03-31 Clark Melissa Ann Filtered cigarette incorporating an adsorbent material
US20050066982A1 (en) * 2003-09-30 2005-03-31 Clark Melissa Ann Filtered cigarette incorporating an adsorbent material
US9554594B2 (en) 2003-09-30 2017-01-31 R.J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
US7237558B2 (en) 2003-09-30 2007-07-03 R. J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
US20050066981A1 (en) * 2003-09-30 2005-03-31 Crooks Evon Llewellyn Filtered cigarette incorporating an adsorbent material
US7669604B2 (en) 2003-09-30 2010-03-02 R.J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
US7827997B2 (en) 2003-09-30 2010-11-09 R. J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
US7856990B2 (en) 2003-09-30 2010-12-28 R. J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
US8066011B2 (en) 2003-09-30 2011-11-29 R. J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
US20070056600A1 (en) * 2005-09-14 2007-03-15 R. J. Reynolds Tobacco Company Filtered smoking article
US8739802B2 (en) 2006-10-02 2014-06-03 R.J. Reynolds Tobacco Company Filtered cigarette

Also Published As

Publication number Publication date
GB1099922A (en) 1968-01-17
DE1298030B (de) 1969-06-19
DE6606277U (de) 1970-09-10
CH430547A (fr) 1967-02-15
BE658776A (xx) 1965-05-17

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