With Ash Retainer Or Means To Prevent Or Retard Burning Patents (Class 131/349)
  • Patent number: 10375988
    Abstract: A wrapper for a smoking article has a base web and a plurality of elements each having at least a pair of patch areas where diffusivity is in the range of 0 to about 0.2 cm/sec. Patches of adjacent elements are circumferentially offset from one another along the axis of a smoking article. The add-on material can be applied by gravure printing in a single pass in a chevron pattern such that an apex of the element is co-linear with substantially symmetrically spaced points on a trailing, outer edge of an adjacent element. Testing elements may be simultaneously printed with the add-on material to monitor diffusivity and/or presence of add-on material.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: August 13, 2019
    Assignee: Altria Client Services LLc
    Inventors: Marc Rose, Timothy S. Sherwood, Robert N. Smith
  • Patent number: 9675115
    Abstract: The disclosure discloses an electronic cigarette. The electronic cigarette comprises a cigarette rod provided with an air outlet for cigarette smoke flowing out, wherein the electronic cigarette further comprises a break means formed on an edge area around the air outlet to be convenient for users to smoke after removing the break means. In this disclosure, a break means configures around an air outlet for the cigarette smoke flowing out. In such case, firstly, removing the break mean while users use the electronic cigarette, which can be regarded as a mark for judging whether the electronic cigarette has been used or not. With such construction, it is convenient for users to judge whether the electronic cigarette has been used or not, which is more healthy and can avoid diseases transmitting crossly between users.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: June 13, 2017
    Assignee: HUIZHOU KIMREE TECHNOLOGY CO., LTD. SHENZHEN BRANCH
    Inventor: Qiuming Liu
  • Patent number: 9402417
    Abstract: The present invention describes a single-layer printing method of a wrapper for smoking articles, so as to obtain a wrapper for smoking articles with low propensity to ignition using the flexographic technique, characterized in that (1) the printing is carried out by means of a central drum flexographic printing machine using a single printing unit, (2) said unit has an anilox with a capacity of between 10 and 40 cm3/m2 and a printing cylinder equipped with a printing form selected from a stencil plate plus an adhesive, and a sleeve, and (3) in that an ink is used that comprises at least one film-forming substance and a mineral filler. The present invention also relates to the wrapper that can be obtained by this method and to the smoking article that includes said wrapper.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: August 2, 2016
    Assignee: MIQUEL Y COSTAS & MIQUEL, S.A.
    Inventors: Agustin Tosas Fuentes, Pablo De Mariscal Ruigomez
  • Patent number: 9220298
    Abstract: A kit is provided. The kit comprises a plurality of units. Each of the units comprises a tube comprising an open end. The tube contains a first smokable material recessed with respect to the end so that an open space within the tube is defined thereby between the end and the first material. The end is sized to receive a cigarette portion comprising a second smokable material so that the portion is positioned within the space so that the first material and the second material abut each other.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: December 29, 2015
    Assignee: Viiital, LLC
    Inventors: Zachary J. En'Wezoh, Brandon I. En'Wezoh
  • Publication number: 20150090284
    Abstract: A cigarette paper contains pulp fibers and filler particles, whereby at least 20% of the filler particles, by mass or by particle number, have a flaked shape. The flaked filler particles have a length l, a width b and a thickness d, which correspond to the respective maximum extension in three mutually orthogonal spatial directions, whereby the length l as well as the width b are at least twice as large as the thickness d. The mass-specific median value d50 of the particle size distribution measured according to ISO 13317-3 is between 0.2 ?m and 4.0 ?m, and the flaked particles are formed by calcium carbonate.
    Type: Application
    Filed: November 25, 2014
    Publication date: April 2, 2015
    Inventors: Dieter Möhring, Roland Zitturi, Dietmar Volgger
  • Patent number: 8863757
    Abstract: A process for reducing the permeability of a paper wrapper used in the construction of a smoking article is disclosed. The paper wrapper is treated with a film-forming composition that forms treated discrete areas on the wrapper. The treated discrete areas have a permeability within a predetermined range sufficient to reduce the ignition proclivity properties of a smoking article made with the wrapper. In accordance with the present invention, the film-forming composition contains a film-forming material. The film-forming material has a relatively low viscosity. In this manner, the film-forming composition can have a relatively high solids content and still be applied to the wrapper using conventional techniques, such as by using a gravure printer.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: October 21, 2014
    Assignee: Schweitzer-Mauduit International, Inc.
    Inventor: Thomas A. Kraker
  • Publication number: 20140123992
    Abstract: A cigarette includes lighting and mouth ends. It also includes a mouth-end segment; an aerosol-generation system disposed between the lighting and mouth ends, which includes (i) a heat-generation segment adjacent the smokable segment, including a heat source configured to be activated by combustion of a smokable material and an insulation layer of a non-glass material that is woven, knit, or both, shaped to retain (e.g., by interlocking engagement with) the heat source, and (ii) an aerosol-generating segment with aerosol-forming material disposed between, but physically separate from, each of the heat generation segment and the mouth end; a piece of outer wrapping material that provides an overwrap around at least a portion of the aerosol-generating segment, the heat-generation segment, and at least a portion of the smokable segment; those segments being connected together by the overwrap to provide a cigarette rod; that is connected to the cigarette rod using tipping material.
    Type: Application
    Filed: January 13, 2014
    Publication date: May 8, 2014
    Applicant: R.J. Reynolds Tobacco Company
    Inventors: Timothy Frederick Thomas, Billy Tyrone Conner, Andries Don Sebastian, Evon Llewellyn Crooks
  • Patent number: 8646463
    Abstract: A cigarette and cigarette paper have a plurality of multilayer bands formed by printing a highly viscous aqueous film-forming composition. After heating the composition to lower its viscosity, the bands are applied to the cigarette paper by gravure printing the composition. The composition is quenched and gelatinized by contact with the cool cigarette paper reducing absorption of water by the paper and reducing wrinkling, cockling, and waviness. Multiple gravure printed layers may be used to form the bands.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: February 11, 2014
    Assignee: Philip Morris USA Inc.
    Inventors: Timothy S. Sherwood, Firooz Rasouli, Ping Li, Don E. Miser, Joe Yousef Mohajer, Bruce E. Waymack, Tony A. Phan, Tracy L. Madison, John R. Tilley, Yezdi B. Pithawalla
  • Patent number: 8646464
    Abstract: Smoking articles having reduced ignition proclivity characteristics are disclosed. The smoking articles include a paper wrapper containing cellulosic fibers and filler particles. The paper wrappers are formed so that the filler particles form a concentration gradient throughout the thickness of the wrapper. More particularly, a greater concentration of filler particles are present at a first surface in comparison to the amount of filler particles present at the opposite surface. In accordance with the present disclosure, an ignition reducing composition is applied to the first surface. In this manner, treated areas having more uniform properties are formed.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: February 11, 2014
    Assignee: Schweitzer-Mauduit International, Inc.
    Inventors: Vladimir Hampl, Jr., James C. Rossi-Espagnet, Xiangwei Gu, Peter E. Brighenti, Christopher Lee Goynes
  • Patent number: 8381740
    Abstract: The invention provides a tobacco smoking apparatus that enables a person to smoke; namely, inhale and exhale smoke and other combustion products from burning tobacco, while isolating and protecting others from a substantial portion of the combustion products, including smoke, smoker's exhale, and odor, that are produced from smoking tobacco.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: February 26, 2013
    Assignee: Xerosmoke LLC
    Inventors: Christopher N. Bollinger, Kenneth B. Digney-Peer
  • Patent number: 8074663
    Abstract: A flame-retardant and fireproof cigarette which aims to contain the combustion process to the cigarette. The flame-retardant and fireproof cigarette has a filter that is aligned with a tobacco body. A flame-retardant and fireproof covering is positioned over at least a portion of the tobacco body and isolates the open fire associated with the consumption of the tobacco during the course of smoking or burning the cigarettes. Such a cigarette reduces the risk of undesired, inadvertent, and latent ignition of adjacent materials.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: December 13, 2011
    Inventor: Tian Ning
  • Patent number: 7735494
    Abstract: The invention provides a tobacco smoking apparatus that enables a person to smoke, namely inhale and exhale smoke and other combustion products from burning tobacco, while isolating and protecting others from a substantial portion of the combustion products, including smoke, smoker's exhale and odor, that are produced from smoking tobacco.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: June 15, 2010
    Assignee: XeroSmoke, LLC
    Inventors: Christopher N. Bollinger, Kenneth B. Digney-Peer
  • Patent number: 7677256
    Abstract: Smokable rods of cigarettes are manufactured using wrapping materials that incorporate at least one fibrous material (e.g., flax fibers, hardwood pulp fibers and/or softwood pulp fibers) at least one filler material (e.g., calcium carbonate in particulate form). The wrapping materials possess multi-layer coatings. The wrapping materials possess coatings in the form of series of spaced apart bands, each band possessing a series of layers. At least one of the coating layers can have a filler material dispersed or suspended within a film-forming material of that layer.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: March 16, 2010
    Assignee: R.J. Reynolds Tobacco Company
    Inventors: Paul Stuart Chapman, Sara Sutton Williard, Charles Ray Ashcraft, James Herbert Ellis, Jr., James Ray Hutchens, Gregory Scott Pierce, John Joseph Tomel, Jr., Mark Stuart Powell
  • Patent number: 7216652
    Abstract: The invention relates to a tobacco smoking article wrapper which selectively reduces the content of gaseous components in the smoke delivered during the use of the smoking article. The gaseous components can be low molecular weight aldehydes in the smoke produced during combustion/pyrolysis of the smoking article. The wrapper can comprise cigarette paper having an ammonium-containing compound filler therein for reducing the aldehyde content in the smoke. The ammonium-containing compound filler evolves ammonia upon combustion/pyrolysis of the smoking article which can chemically react with aldehydes in tobacco smoke and/or modify the combustion/pyrolysis reactions thereby reducing the initial formation of aldehydes to selectively reduce such aldehydes from the smoke inhaled by a smoker. The ammonium-containing compound can be magnesium ammonium phosphate used alone or in combination with one or more other fillers such as calcium carbonate.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: May 15, 2007
    Assignee: Philip Morris USA Inc.
    Inventors: Jay A. Fournier, John B. Paine, III
  • Patent number: 7017586
    Abstract: A cigarette comprises a tobacco section including a columnar tobacco filler material and at least one cellulose-based wrapping paper sheet for wrapping the outer circumferential surface of the columnar tobacco filler material. The outermost wrapping paper sheet among the wrapping paper sheets has a thermal conductivity not lower than 0.5 W·K?1·m?1.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: March 28, 2006
    Assignee: Japan Tobacco, Inc.
    Inventors: Takeo Tsutsumi, Keigo Miura
  • Patent number: 6976493
    Abstract: Smokable rods of cigarettes are manufactured using wrapping materials that incorporate at least one fibrous material (e.g., flax fibers, hardwood pulp fibers and/or softwood pulp fibers) at least one filler material (e.g., calcium carbonate in particulate form). The wrapping materials possess multi-layer coatings. The wrapping materials possess coatings in the form of series of spaced apart bands, each band possessing a series of layers. At least one of the coating layers can have a filler material dispersed or suspended within a film-forming material of that layer.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: December 20, 2005
    Assignee: R.J. Reynolds Tobacco Company
    Inventors: Paul Stuart Chapman, Sara Sutton Williard, Charles Ray Ashcraft, James Herbert Ellis, Jr., James Ray Hutchens, Gregory Scott Pierce, John Joseph Tomel, Jr., Mark Stuart Powell
  • Patent number: 6935346
    Abstract: The invention describes a smoking article (1) comprising a wrapper (3) enwrapping a tobacco smoking material (2), the wrapper comprising a ceramic material and being capable of mechanically trapping mainly aqueous particulate phase materials in the sidestream smoke, thereby reducing sidestream smoke deliveries considerably despite the use of the wrapper with conventional tobacco materials.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: August 30, 2005
    Inventors: Alison Bushby, Kevin Gerard McAdam, Nicholas Leslie Timms
  • Patent number: 6929013
    Abstract: Smokable rods of cigarettes are manufactured using wrapping materials that incorporate at least one fibrous material (e.g., flax fibers, hardwood pulp fibers and/or softwood pulp fibers) at least one filler material (e.g., calcium carbonate in particulate form). The wrapping materials possess multi-layer coatings. The wrapping materials possess coatings in the form of series of spaced apart bands, each band possessing a series of layers. At least one of the coating layers can have a filler material dispersed or suspended within a film-forming material of that layer.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: August 16, 2005
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: Charles Ray Ashcraft, James Herbert Ellis, Jr., James Ray Hutchens, Gregory Scott Pierce, John Joseph Tomel, Jr., Don Hayes White, Sara Sutton Williard, Paul Stuart Chapman, Mark Stuart Powell
  • Patent number: 6883524
    Abstract: Wrapper paper for a smoking article carries 1 g/m2 to 15 g/m2 of a burn adjusting agent and 1 g/m2 to 30 g/m2 of a calcium phosphate-based compound in the wrapper paper.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: April 26, 2005
    Assignee: Japan Tobacco Inc.
    Inventors: Satoshi Ishikawa, Takeo Tsutsumi, Makoto Sato, Kaoru Inoue
  • Patent number: 6860274
    Abstract: A low fire-spreading cigarette has a tobacco section including a columnar tobacco filler material, an inside wrapper paper sheer wrapping the outer circumferential surface of the columnar tobacco filler material and an outside wrapper paper sheet wrapping the outer circumferential surface of the inside wrapper paper sheet. The heat conductivity of the inside wrapper is 0.5 W·K?1·m?1 or more and the heat conductivity of the outside wrapper paper sheet is less than 0.5 W·K?1·m?1.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: March 1, 2005
    Assignee: Japan Tobacco Inc.
    Inventors: Takaaki Matsufuji, Takeo Tsutsumi, Keigo Miura
  • Patent number: 6837248
    Abstract: A smoking article having reduced ignition propensity is disclosed. The smoking article includes a tobacco column, a wrapper surrounding the tobacco column and a filter element. The wrapper has a base permeability, an untreated area and a least one discrete area treated with a composition to reducing the base permeability. The discretely treated area interacts with a coal of a burning tobacco firecone as it advances to self-extinguish the smoking article. The composition of the treated area includes a permeability reducing substance, a burn rate retarding substance and a burn rate accelerating substance. Either the burn rate retarding substance or the burn rate accelerating substance acts as an organoleptic enhancing substance. In this way a smoker's experience when smoking either the at least one treated area or the untreated area is substantially the same.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: January 4, 2005
    Assignee: Lorillard Licensing Company, LLC
    Inventors: Michael A. Zawadzki, Arthur M. Ihrig, David A. Grider, Terry D. Jessup, David L. Williams
  • Patent number: 6827087
    Abstract: A cigarette with burn rate modification is described. The cigarette has a partial double wrap design and incorporates an inner wrap material which extends partially around the interior portion of the outer wrapper of a cigarette. The inner wrap can be a single element or can be a plurality of strips which extend coaxially along the tobacco column and which affect the burn rate of the cigarette. The partial inner wrap material exhibits a low porosity and forms zones of high diffusion and low diffusion along the length of the tobacco rod. These zones may be singular or may be alternating and are coaxial. The low diffusion zones are aligned with the inner wrap material.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: December 7, 2004
    Inventors: Joseph T. Wanna, Douglas R. Hicks
  • Patent number: 6823873
    Abstract: A cigarette includes an ignition element in contact with tobacco, surrounded by a composite outer wrapper. The outer wrapper is impervious to oxygen causing the tobacco to extinguish between puffs. The ignition element, however, has a longer static burn time than the tobacco and remains smoldering between puffs. Upon a subsequent puff, the smoldering ignition element re-ignites the tobacco. One or more initially-occluded perforations in the outer layer maintain the uniformity in combustion of the tobacco and ignition element.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: November 30, 2004
    Assignee: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, John R. Hearn, F. Murphy Sprinkel, Jr., Jay A Fournier, Jerry F. Whidby
  • Publication number: 20040231685
    Abstract: Cigarettes are manufactured using modified automated cigarette making apparatus. Those cigarettes possess smokable rods having paper wrapping materials having additive materials applied thereto as patterns. The additive material can be applied as a coating formulation in an off-line manner to a continuous paper sheet web that is later used for cigarette manufacture. The additive material can be applied as a coating formulation in an on-line manner to continuous paper web moving through an operating cigarette making machine. The coating formulation is applied to the paper web using roll applicator techniques, ink jet printing techniques or electrostatic precipitation techniques. Liquid coating formulation are curable, and are virtually absent of solvent or liquid carrier. Radiation, such as ultraviolet or electron beam radiation, is used to solidify and fix polymerizable liquid components of the coating formulation that have been applied to the paper web.
    Type: Application
    Filed: September 17, 2003
    Publication date: November 25, 2004
    Inventors: Pankaj Patel, Charles Ray Ashcraft, John Joseph Tomel, Gregory Alan Holmes, Vernon Brent Barnes, Lloyd Harmon Hancock, James Herbert Ellis, James Ray Hutchens, Gregory Scott Pierce, Don Hayes White
  • Patent number: 6799578
    Abstract: A low sidestream smoke cigarette comprises a conventional tobacco rod, and a combustible treatment paper having a sidestream smoke treatment composition. The treatment composition comprises in combination, an oxygen storage and donor metal oxide oxidation catalyst and an essentially non-combustible finely divided porous particulate adjunct for said catalyst.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: October 5, 2004
    Assignee: Rothmans, Benson & Hedges Inc.
    Inventors: Stanislav M. Snaidr, E. Robert Becker
  • Publication number: 20040182407
    Abstract: A process for reducing the permeability of a paper wrapper used in the construction of a smoking article is disclosed. The paper wrapper is treated with a film-forming composition that forms treated discrete areas on the wrapper. The treated discrete areas have a permeability within a predetermined range sufficient to reduce the ignition proclivity properties of a smoking article made with the wrapper. In accordance with the present invention, the film-forming composition is applied as multiple layers to the paper wrapper. After each application step, the wrapper is dried. Applying the film-forming composition to the paper wrapper in multiple layers minimizes distortion and other adverse affects that may occur to the wrapper.
    Type: Application
    Filed: March 30, 2004
    Publication date: September 23, 2004
    Inventors: Richard M. Peterson, Joseph S. Kucherovsky, Thomas A. Kraker
  • Publication number: 20040173230
    Abstract: A device for minimizing cigarette sidestream smoke and reducing free-burn rate of a burning cigarette is disclosed. The device comprises a non-combustible tubular element encasing an effective length of a tobacco charge of a cigarette located in the tubular element. The tubular element minimizes sidestream smoke emission from a burning tobacco charge and reduces free-burn rate of such burning tobacco charge to increase the number of puffs from the burning tobacco charge.
    Type: Application
    Filed: March 11, 2004
    Publication date: September 9, 2004
    Applicant: Rothmans, Benson & Hedges Inc.
    Inventors: Stanislav M. Snaidr, Larry Bowen, Warren A. Brackmann
  • Publication number: 20040173231
    Abstract: A cigarette sidestream smoke treatment material made from a sheet of non-combustible active components provides a porous structure capable of treating sidestream smoke. The treatment material, as used in combination with a cigarette, provides a low sidestream smoke emitting cigarette unit. The material has a porosity which encourages a conventional free-burn rate of a conventional cigarette. The material may comprise a sorbent capable of sorbing components of the sidestream smoke, and an oxygen storage component which releases oxygen at free-burn rate temperatures to ensure that conventional free-burn rate is maintained and to enhance the oxidation treatment of the adsorbed non-aqueous components. Preferably, an oxidation catalyst is included in the material and most desirably the oxygen storage component may also function as the oxidation catalyst. Particularly preferred materials which perform the dual function are oxides of cerium.
    Type: Application
    Filed: March 22, 2004
    Publication date: September 9, 2004
    Applicant: Rothmans, Benson & Hedges Inc.
    Inventors: Larry Bowen, Stanislav M. Snaidr, E. Robert Becker, Warren A. Brackmann
  • Patent number: 6779530
    Abstract: A process for reducing the permeability of a paper wrapper used in the construction of a smoking article is disclosed. The paper wrapper is treated with a film-forming composition that forms treated discrete areas on the wrapper. The treated discrete areas have a permeability within a predetermined range sufficient to reduce the ignition proclivity properties of a smoking article made with the wrapper. In accordance with the present invention, the film-forming composition contains a film-forming material. The film-forming material has a relatively low viscosity. In this manner, the film-forming composition can have a relatively high solids content and still be applied to the wrapper using conventional techniques, such as by using a gravure printer.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: August 24, 2004
    Assignee: Schweitzer-Mauduit International, Inc.
    Inventor: Thomas A. Kraker
  • Patent number: 6725867
    Abstract: A process for reducing the permeability of a paper wrapper used in the construction of a smoking article is disclosed. The paper wrapper is treated with a film-forming composition that forms treated discrete areas on the wrapper. The treated discrete areas have a permeability within a predetermined range sufficient to reduce the ignition proclivity properties of a smoking article made with the wrapper. In accordance with the present invention, the film-forming composition is applied as multiple layers to the paper wrapper. After each application step, the wrapper is dried. Applying the film-forming composition to the paper wrapper in multiple layers minimizes distortion and other adverse affects that may occur to the wrapper.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: April 27, 2004
    Assignee: Schweitzer-Mauduit International, Inc.
    Inventors: Richard M. Peterson, Joseph S. Kucherovsky, Thomas A. Kraker
  • Patent number: 6722373
    Abstract: A cigarette sidestream smoke treatment material made from a sheet of non-combustible active components provides a porous structure capable of treating sidestream smoke. The treatment material, as used in combination with a cigarette, provides a low sidestream smoke emitting cigarette unit. The material has a porosity which encourages a conventional free-burn rate of a conventional cigarette. The material may comprise a sorbent capable of sorbing components of the sidestream smoke, and an oxygen storage component which releases oxygen at free-burn rate temperatures to ensure that conventional free-burn rate is maintained and to enhance the oxidation treatment of the adsorbed non-aqueous components. Preferably, an oxidation catalyst is included in the material and most desirably the oxygen storage component may also function as the oxidation catalyst. Particularly preferred materials which perform the dual function are oxides of cerium.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: April 20, 2004
    Assignee: Rothmans, Benson & Hedges Inc.
    Inventors: Larry Bowen, Stanislav M. Snaidr, E. Robert Becker, Warren A. Brackmann
  • Publication number: 20030192562
    Abstract: A tobacco odor deodorizing perfume composition contains a mandarin orange essential oil or a mandarin orange essential oil fraction having its terpene hydrocarbons substantially removed therefrom.
    Type: Application
    Filed: May 6, 2003
    Publication date: October 16, 2003
    Inventors: Nobukazu Higashi, Fumihiro Omori, Tomoko Monobe, Jun Komiya, Satomi Kunieda, Makoto Emura, Yoichiro Nishizawa, Takeshi Ishizuka, Takahiro Ariyoshi
  • Publication number: 20030145869
    Abstract: A smoking article is manufactured through supplying a tobacco filler material onto a tobacco wrapping paper sheet that is transferred, wrapping the tobacco filler material supplied onto the tobacco wrapping paper sheet with the tobacco wrapping paper sheet so as to prepare a rod body, and cutting the rod body into a plurality of tobacco rods each having a prescribed length. The tobacco filler material contains at least 20% by weight of expanded tobacco material. The tobacco wrapping paper sheet is coated with the burn adjusting agent during transfer of the tobacco wrapping paper sheet.
    Type: Application
    Filed: February 28, 2003
    Publication date: August 7, 2003
    Inventors: Satoshi Kitao, Keigo Miura, Takaaki Matsufuji, Takeo Tsutsumi, Fumio Sashide, Sadayoshi Matsuura
  • Publication number: 20020179105
    Abstract: A smoking article having reduced ignition propensity is disclosed. The smoking article includes a tobacco column, a wrapper surrounding the tobacco column and a filter element. The wrapper has a base permeability, an untreated area and a least one discrete area treated with a composition to reducing the base permeability. The discretely treated area interacts with a coal of a burning tobacco firecone as it advances to self-extinguish the smoking article. The composition of the treated area includes a permeability reducing substance, a burn rate retarding substance and a burn rate accelerating substance. Either the burn rate retarding substance or the burn rate accelerating substance acts as an organoleptic enhancing substance. In this way a smoker's experience when smoking either the at least one treated area or the untreated area is substantially the same.
    Type: Application
    Filed: February 26, 2001
    Publication date: December 5, 2002
    Inventors: Michael A. Zawadzki, Arthur M. Ihrig, David A. Grider, Terry D. Jessup, David L. Williams
  • Publication number: 20020174875
    Abstract: A cigarette includes an ignition element in contact with tobacco, surrounded by a composite outer wrapper. The outer wrapper is impervious to oxygen causing the tobacco to extinguish between puffs. The ignition element, however, has a longer static burn time than the tobacco and remains smoldering between puffs. Upon a subsequent puff, the smoldering ignition element re-ignites the tobacco. One or more initially-occluded perforations in the outer layer maintain the uniformity in combustion of the tobacco and ignition element.
    Type: Application
    Filed: February 21, 2002
    Publication date: November 28, 2002
    Inventors: Walter A. Nichols, John R. Hearn, F. Murphy Sprinkel, Jay A. Fournier, Jerry F. Whidby
  • Publication number: 20020139381
    Abstract: A process for reducing the permeability of a paper wrapper used in the construction of a smoking article is disclosed. The paper wrapper is treated with a film-forming composition that forms treated discrete areas on the wrapper. The treated discrete areas have a permeability within a predetermined range sufficient to reduce the ignition proclivity properties of a smoking article made with the wrapper. In accordance with the present invention, the film-forming composition is applied as multiple layers to the paper wrapper. After each application step, the wrapper is dried. Applying the film-forming composition to the paper wrapper in multiple layers minimizes distortion and other adverse affects that may occur to the wrapper.
    Type: Application
    Filed: November 13, 2001
    Publication date: October 3, 2002
    Applicant: Schweitzer-Mauduit International, Inc.
    Inventors: Richard M. Peterson, Joseph S. Kucherovsky, Thomas A. Kraker
  • Patent number: 6367481
    Abstract: A cigarette includes an ignition element in contact with tobacco, surrounded by a composite outer wrapper. The outer wrapper is impervious to oxygen causing the tobacco to extinguish between puffs. The ignition element, however, has a longer static burn time than the tobacco and remains smoldering between puffs. Upon a subsequent puff, the smoldering ignition element re-ignites the tobacco. One or more initially-occluded perforations in the outer layer maintain the uniformity in combustion of the tobacco and the ignition element.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: April 9, 2002
    Assignee: Philip Morris Incorporated
    Inventors: Walter A. Nichols, John R. Hearn, F. Murphy Sprinkel, Jr., Jay A Fournier, Jerry F. Whidby
  • Patent number: 6311694
    Abstract: A smoking article comprises a smoking accessory and a cigarette. The smoking accessory includes a holder and a substantially air-impermeable sleeve which is coupled to a distal portion of the holder and is coaxial therewith. The cigarette is received in the smoking accessory such that a distal end of the cigarette is located substantially flush with a distal end of the sleeve. The cigarette includes a column of tobacco which is shorter than that used in conventional cigarettes, e.g., 20 mm in length or less. An air gap separates an outer surface of the cigarette from the sleeve, and plural openings are formed in the sleeve to supply air to the cigarette. In use, the sleeve restricts the flow of air to the cigarette, thereby slowing combustion and reducing sidestream smoke between puffs.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: November 6, 2001
    Assignee: Philip Morris Incorporated
    Inventors: Walter A. Nichols, John R. Hearn, F. Murphy Sprinkel, Jr., Jay A. Fournier, Jerry F. Whidby
  • Patent number: 6257243
    Abstract: The invention relates to a coaxial smoking article, particularly a coaxial cigarette, comprising a coaxial rod of smokable material, which rod has an inner segment (1) of smokable material surrounded by a covering (2), around which covering is an outer segment (3) of combustible or thermally destructible/decomposable material, which outer segment is also surrounded by a covering (4). The combustible or thermally destructible/decomposable material of the outer segment contains no or only a very small proportion of spot-forming substances. Further, the coverings of the inner and outer segments are such that spot-forming substances in the inner segment are essentially unable to reach the outside of the covering. Hence, a cigarette having reduced potential for the production of spotting is so formed.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: July 10, 2001
    Assignee: Brown & Williamson Tobacco Corporation
    Inventors: Bernd-Henrik Müller, Adolf Schlüter, Werner Schneider, Christopher John Cook, Joseph Wanna, Frank Kelley St. Charles
  • Patent number: 6202651
    Abstract: This invention provides a smoking article (1) having reduced sidestream smoke in the inter-puff period. A smoking article (1) according to the invention may comprise segments of a high level of tobacco-containing material (5) interconnected by segments of low level of tobacco-containing material (6) which are capable of maintaining smoulder in the inter-puff period and re-igniting the segments of a high level of tobacco-containing material (5) in the puff period. Alternatively, a smoking article according to another aspect of the invention may comprise a lengthwise, axially extending, tobacco-containing fuse portion (46) which sustains smoulder in the inter-puff period when surrounding tobacco material (45) is substantially extinguished and which re-ignites the extinguished material on puffing of the smoking article (1).
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: March 20, 2001
    Assignee: British-American Tobacco Company Limited
    Inventors: John Anthony Luke, Philip John Kinnard
  • Patent number: 5983901
    Abstract: This invention provides a smoking article having reduced sidestream smoke in the inter-puff period. A smoking article according to the invention may comprise a lengthwise, axially extending, tobacco-containing or non-tobacco fuse portion which sustains smoulder in the inter-puff period when surrounding tobacco material is substantially extinguished and which re-ignites the extinguished material on puffing of the smoking articles.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: November 16, 1999
    Assignee: British-American Tobacco Company Limited
    Inventors: John Anthony Luke, Philip John Kinnard
  • Patent number: 5878753
    Abstract: A smoking article wrapper has discrete areas of reduced permeability for improving ignition proclivity characteristics of a smoking article. The reduced permeability areas define a gradually decreasing permeability profile in a burning direction of the smoking article such that permeability reduction in the reduced permeability areas increases from a minimum reduction to a maximum permeability reduction in the burning direction of the smoking article.
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: March 9, 1999
    Assignee: Schweitzer-Mauduit International, Inc.
    Inventors: Richard M. Peterson, Joseph S. Kucherovsky
  • Patent number: 5878754
    Abstract: A smoking article wrapper having improved ignition proclivity characteristics includes discrete areas of an outer circumferential surface of the wrapper treated with a non-aqueous solution of a solvent soluble cellulosic polymer dissolved in a non-aqueous solvent. The solution also includes a particulate inorganic non-reactive filler suspended in solution by weight percentage of solution. The solution is applied in discrete areas as bands or patterns causing reduced permeability of the treated areas within a permeability range adequate to reduce ignition proclivity. A method is also provided for producing a smoking article wrapper having improved ignition proclivity characteristics as described.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: March 9, 1999
    Assignee: Schweitzer-Mauduit International, Inc.
    Inventors: Richard M. Peterson, John H. Goodrow, Joseph S. Kucherovsky
  • Patent number: 5778898
    Abstract: A self-extinguishing cigarette includes a cigarette body, a deformed sleeve made of vinyl plastics for slidably moving around the cigarette body, and an annular stopper attached on one end of a cigarette filter, whereby, upon moving the sleeve to a flame position of a lit end of the cigarette body, the lit cigarette is immediately extinguished by being squeezed and wrinkled by the sleeve.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: July 14, 1998
    Inventors: Tae Hong Bae, Sang Yun Bae, Sang Il Bae
  • Patent number: 5722432
    Abstract: This invention provides a smoking article having reduced sidestream smoke in the inter-puff period. A smoking article according to the invention may comprise segments of a high level of tobacco-containing material interconnected by segments of low level of tobacco-containing material which are capable of maintaining smoulder in the inter-puff period and re-igniting the segments of a high level of tobacco-containing material in the puff period. Alternatively, a smoking article according to another aspect of the invention may comprise a lengthwise, axially extending, tobacco-containing fuse portion which sustains smoulder in the inter-puff period when surrounding tobacco material is substantially extinguished and which re-ignites the extinguished material on puffing of the smoking articles.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: March 3, 1998
    Assignee: British-American Tobacco Company Limited
    Inventors: John Anthony Luke, Philip John Kinnard
  • Patent number: 5595195
    Abstract: A cigarette which includes a cylindrical collapsible water reservoir axially embedded in the filter-tip to hold water, an inflammable nozzle tube axially embedded in the tobacco within the outer paper tube of the cigarette and longitudinally connected to the cylindrical collapsible water reservoir, a collapsible metal ring movably mounted around the outer paper tube; water is released from the cylindrical collapsible water reservoir out of the inflammable nozzle tube to quench the flame during the burning of the tobacco, when the filter-tip is squeezed to compress the cylindrical collapsible water reservoir.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: January 21, 1997
    Inventors: Cheng C. Chang, Cheeror Yang
  • Patent number: 5450863
    Abstract: A smoking article wrapper comprising a base web material having a first burn rate and one or more regions having a second burn rate is provided. The regions having a second burn rate are comprised of a composite layer structure of: said base web material, a layer is particulate material, and an adhesive layer which adheres to said base web material and to said layer of particular material. The particulate material is subsequently applied to the adhesive layer. An apparatus and method for applying the particulate material onto the base web is also provided.
    Type: Grant
    Filed: June 9, 1993
    Date of Patent: September 19, 1995
    Assignee: Philip Morris Incorporated
    Inventors: Alfred L. Collins, Billy J. Keen, Jr., George B. Reid, Renzer R. Ritt, Sr., William H. Stevens, Howard W. Vogt, Jr.
  • Patent number: 5417228
    Abstract: This invention relates to the control of the burn rate of a cigarette. The burn rate is controlled by the use of a paper wrapper to which regions of cellulosic material is applied and bonded. The cellulosic material is applied during a manufacturing step for the base paper wrapper, either off or on-line of the paper wrapper-forming machine.
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: May 23, 1995
    Assignee: Philip Morris Incorporated
    Inventors: Sheryl D. Baldwin, Navin Gautam, Kenneth S. Houghton, Robert M. Rogers, Judith L. Ryder
  • Patent number: 5404891
    Abstract: An automatically extinguishable cigarette includes: a tobacco section in which tobacco is rolled up; a filter section; and an extinguishing member consisting of a cylindrical member provided between the tobacco section and the filter section and formed of a flame-resistant material. The front and rear openings of the cylindrical member are sealed by members formed of a material which is gas permeable but not water permeable. Further, the cylindrical member contains water or a fibrous material impregnated with water, thereby enabling the cigarette to go out by itself if left unextinguished.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: April 11, 1995
    Assignee: Taijiro Ishikawa
    Inventor: Nobuyoshi Kiribuchi
  • Patent number: 5394894
    Abstract: A smoking inhibitor ring for placement on a cigarette to limit the length of available cigarette to smoke has concentric aluminum cylindrical, uniformly spaced apart inner and outer walls joined at each end by closures, the insulation space between the inner and outer walls being unfilled and the inner wall having an inner diameter substantially the same as a cigarette. A method of using the inhibitor ring includes placing one and then increasing numbers of the rings on a cigarette to gradually decrease the length of cigarette available to smoke.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: March 7, 1995
    Inventor: Ismail Y. Zade