Coated Or Impregnated Patents (Class 131/362)
  • Patent number: 11006661
    Abstract: A device comprising at least an outside surface which is intended to come into contact with the lips of the user during use, and wherein it is intended that the user shall inhale air drawn through the device. The device is coated with at least one first substance at least on a part of the outside surface intended to come into contact with the lips of the user, and the device includes at least one from the group consisting of a vaporizer for making an aerosol of solid particles of at least one second substance and/or liquid droplets of at least one second substance in air to be inhaled by the user, and a vaporizer for making a solution of at least one second substance in air to be inhaled by the user.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: May 18, 2021
    Inventor: Mamood Valadi
  • Publication number: 20150107608
    Abstract: A smoking article includes a mouthpiece having an outer surface and a cooling agent inclusion complex disposed on the outer surface.
    Type: Application
    Filed: March 15, 2013
    Publication date: April 23, 2015
    Inventor: Alen Kadiric
  • Patent number: 8733368
    Abstract: A device which facilitates the absorption of nicotine in order to reduce the incidence of tobacco smoking is disclosed. The device includes a tube defining an interior space. The tube has a first end with an opening and a second end. An inhalable, flowable liquid or gel composition is disposed in the interior space of the tube. The composition may include water, at least one vitamin, a flavoring agent, and nicotine. The flavoring agent may include an intense sweetener such as sucralose, and a natural or artificial fruit flavor. A user inhales on the first end of the tube of the device as a substitute oral activity to tobacco smoking and thereby ingests a source of nicotine that reduces the withdrawal symptoms experienced when smoking is stopped.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: May 27, 2014
    Assignee: Smoke-Break, Inc.
    Inventors: Brett J. Roth, Terrill S. Clayton
  • Patent number: 8662087
    Abstract: A device which facilitates the absorption of nicotine in order to reduce the incidence of tobacco smoking is disclosed. The device includes a tube defining an interior space. The tube has a first end with an opening and a second end. An inhalable, flowable liquid or gel composition is disposed in the interior space of the tube. The composition may include water, at least one vitamin, a flavoring agent, and nicotine. The flavoring agent may include an intense sweetener such as sucralose, and a natural or artificial fruit flavor. A user inhales on the first end of the tube of the device as a substitute oral activity to tobacco smoking and thereby ingests a source of nicotine that reduces the withdrawal symptoms experienced when smoking is stopped.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: March 4, 2014
    Assignee: Smoke-Break, Inc.
    Inventors: Brett J. Roth, Terrill S. Clayton
  • Patent number: 8627827
    Abstract: Some embodiments of a tobacco article may include tobacco disposed in a porous matrix. The tobacco article may provide tobacco, tobacco constituents, or both tobacco and tobacco constituents to the consumer's mouth in the form of particles, liquid, or vapor so as to provide tobacco satisfaction to the consumer. In some circumstances, the tobacco may be integrally molded with a plastic material so that at least a portion of the tobacco is disposed in pores of the matrix.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: January 14, 2014
    Assignee: U.S. Smokeless Tobacco Company
    Inventors: James Arthur Strickland, Frank Scott Atchley
  • Patent number: 8387623
    Abstract: Tobacco articles having tobacco disposed in a porous matrix. The tobacco articles can provide tobacco to an adult consumer in the form of particles, liquid, or vapor so as to furnish tobacco satisfaction to the consumer. The tobacco can be integrally molded with a plastic material so that at least a portion of the tobacco is disposed in pores of the matrix.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: March 5, 2013
    Assignee: U.S. Smokeless Tobacco Company LLC
    Inventors: Frank Scott Atchley, James Arthur Strickland, James M. Rossman
  • Patent number: 8240315
    Abstract: A smoking article, which provides lower amounts of total particulate matter in a latter portion of its puff count, includes a cylinder of smoking material, a combustible hollow tube within the cylinder of smoking material, and a heat sink at a downstream end of the hollow tube. The smoking article also includes a filter system attached to the cylinder of smoking material having a sorbent material and at least one downstream segment of filtering material.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: August 14, 2012
    Assignee: Philip Morris USA Inc.
    Inventors: Raquel M. Olegario, Mike Braunshteyn, Gail Yoss, Jim Lyons-Hart
  • Publication number: 20120073587
    Abstract: A cigar has a length of at least 8 inches and may be severed in a plane perpendicular to its longitudinal axis without deleteriously affecting its structural integrity or its smokability. The cigar has a non-rotatable collar consisting of a smokable tobacco product which surrounds and grips the cigar at its midpoint. Overlapping portions of the spirally wound wrapper are glued together by a smokable adhesive, from one end of the cigar to the other.
    Type: Application
    Filed: September 29, 2010
    Publication date: March 29, 2012
    Inventors: Keith R. Meier, John Alexander Svenson, Brandon G. Searfoss
  • Publication number: 20070186943
    Abstract: Some embodiments of a tobacco article may include tobacco disposed in a porous matrix. The tobacco article may provide tobacco, tobacco constituents, or both tobacco and tobacco constituents to the consumer's mouth in the form of particles, liquid, or vapor so as to provide tobacco satisfaction to the consumer. In some circumstances, the tobacco may be integrally molded with a plastic material so that at least a portion of the tobacco is disposed in pores of the matrix.
    Type: Application
    Filed: January 23, 2007
    Publication date: August 16, 2007
    Applicant: U. S. SMOKELESS TOBACCO COMPANY
    Inventors: James Arthur Strickland, Frank Scott Atchley
  • Publication number: 20070186944
    Abstract: Some embodiments of a tobacco article may include tobacco disposed in a porous matrix. The tobacco article may provide tobacco, tobacco constituents, or both tobacco and tobacco constituents to the consumer's mouth in the form of particles, liquid, or vapor so as to provide tobacco satisfaction to the consumer. In some circumstances, the tobacco may be integrally molded with a plastic material so that at least a portion of the tobacco is disposed in pores of the matrix.
    Type: Application
    Filed: January 23, 2007
    Publication date: August 16, 2007
    Applicant: U. S. SMOKELESS TOBACCO COMPANY
    Inventors: James Arthur Strickland, Frank Scott Atchley
  • Publication number: 20070186942
    Abstract: Some embodiments of a tobacco article may include tobacco disposed in a porous matrix. The tobacco article may provide tobacco, tobacco constituents, or both tobacco and tobacco constituents to the consumer's mouth in the form of particles, liquid, or vapor so as to provide tobacco satisfaction to the consumer. In some circumstances, the tobacco may be integrally molded with a plastic material so that at least a portion of the tobacco is disposed in pores of the matrix.
    Type: Application
    Filed: January 23, 2007
    Publication date: August 16, 2007
    Applicant: U. S. SMOKELESS TOBACCO COMPANY
    Inventors: James Arthur Strickland, Frank Scott Atchley
  • Patent number: 6676806
    Abstract: A process for increasing the wet tensile strength properties of a porous plug wrap paper for use in smoking articles is disclosed. The wet strength properties of the paper are increased by incorporating into the paper an alkyl ketene dimer and by applying a size containing polyvinyl alcohol to a surface of the paper. The wet strength properties of the paper can be increased without using cross-linking agents. Porous plug wrap papers made in accordance with the present invention can have a wet tensile strength retention of at least 20%.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: January 13, 2004
    Assignee: Schweitzer-Mauduit International, Inc.
    Inventor: Jon R. Butt, Sr.
  • Publication number: 20030056802
    Abstract: The invention relates to a filter cigarette having a filter (1) that is surrounded by a filter wrapping paper (2) which is enclosed by a coating (3) of the tip. The inside of the filter wrapping paper (2) is coated with a metal, especially aluminium. The coating is only applied to a part of the filter wrapping paper (2) in such a way that air can penetrate through said paper and into the filter (1).
    Type: Application
    Filed: October 11, 2002
    Publication date: March 27, 2003
    Inventor: Ernst Brunbauer
  • Publication number: 20020000235
    Abstract: Smoke constituent reduction is achieved by resolving from puff-to-puff analysis at which location along a tobacco rod production of a particular smoke constituent is maximized, and locally applying an attenuator at said resolved location to reduce production of the constituent. A remainder of the rod is left untreated so as to minimize impact on taste and burn characteristics of the cigarette. Reduction of the first puff formaldehyde formation is achieved by treating the cigarette tip with salts, using Burley tobacco in the tip, increasing the rod density, ventilation at the tip, and thermal treatment of the tip. Other classes of smoke constituents such as TSNAs (tobacco specific nitrosamines), PAHs (polycyclic aromatic hydrocarbons), etc., in particular the PAHs of naphthalene, phenanthrene, pyrene, flouranthene and benzo(a)pyrene may be reduced with placement of a carbon-based and/or metallic disc at the tip and with practices of the invention herein.
    Type: Application
    Filed: May 11, 2001
    Publication date: January 3, 2002
    Inventors: Kenneth Shafer, San Li, Milton Parrish, Susan Plunkett
  • Publication number: 20010032653
    Abstract: The present invention is generally directed to high opacity cigarette wrapping papers. The wrapping paper made according to the present invention contains a mixture of a white pigment and a black pigment. The white pigment, which can be, for instance, calcium carbonate, has a median particle size of from about 0.1 microns to about 0.5 microns, and particularly from about 0.2 microns to about 0.4 microns. It has been discovered that this particular particle size range, which is equal to one-half the wavelength of visible light, greatly increases the opacity, brightness and whiteness of the paper. Small amounts of a black pigment, such as carbon, are then added to further increase the opacity without significantly decreasing the whiteness or brightness of the paper relative to conventional cigarette paper.
    Type: Application
    Filed: April 12, 1999
    Publication date: October 25, 2001
    Inventor: VLADIMIR HAMPL
  • Patent number: 6305382
    Abstract: The present invention is generally directed to low weight cigarette wrapping papers. In particular, the wrapping papers, although having a low basis weight, have an opacity of at least 70% and a tensile strength comparable with conventional papers. Wrapping papers made according to the present invention contain a white pigment having a medium particle size of from 0.1 microns to about 0.5 microns. In one embodiment, a black pigment can also be combined with the white pigment in small amounts.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: October 23, 2001
    Assignee: Schweitzer-Mauduit International, Inc.
    Inventor: Vladimir Hampl, Jr.
  • Patent number: 6302114
    Abstract: The present invention provides a tobacco smoke filter or filter element having a longitudinally extending core (2) and a wrapper (4) engaged around the core (2), the wrapper (4) having particulate additive (6) adhered to one or more portion(s) of the radially inner face thereof with said wrapper (4) being free of additive around its circumference at one or both ends of the core.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: October 16, 2001
    Assignee: Cigarette Components Limited
    Inventors: Paul Francis Clarke, John Charlton
  • Patent number: 5722433
    Abstract: A water-dispersible sheet for cigarettes and a cigarette using the sheet are described. The sheet comprises a water-resolvable base paper and a water-dispersible coating layer containing water-soluble polymer formed on the surface of the base paper, whereby the sheet is adjusted to have an air-permeability of not more than 200 coresta measured with a paper permeability meter, or to have an air-resistance within the range of 0 to 50000 second/100 ml measured with an Oken type air-resistance tester. The water-resolvable base paper is made from fibrous raw materials containing not less than 20% by weight of water-dispersible fibers having fiber dimensions of a l/D value of 0.45 or lower and a L/D value of 60 or lower and a water-retention value of 95% or lower. The sheet is suitable for use as filter joining paper or filter plug wrap for cigarettes.
    Type: Grant
    Filed: July 30, 1996
    Date of Patent: March 3, 1998
    Assignees: Mishima Paper Co., Ltd., Japan Tobacco Inc.
    Inventors: Yoshiaki Ishino, Masato Shishikura, Toru Tsujimoto, Susumu Minamisawa
  • Patent number: 5645087
    Abstract: Fragments of plastic fibers, such as cellulose acetate fibers, forming part of mouthpieces of filter cigarettes or like rod-shaped smokers' products tend to become separated from the respective filter mouthpieces at the end faces which develop in response to the making of cuts across filter rod sections of double unit length between pairs of plain cigarettes to obtain filter cigarettes of unit length. The fragments of fibers which tend to become separated and to contaminate the area around the filter cigarette making machine are either bonded (e.g., by heat and/or by a solvent) to the respective mouthpieces, or are removed by suction and/or by resorting to electrostatic precipitation. It is also contemplated to cause smoke-permeable layers of filter material to overlie the end faces of the mouthpieces.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: July 8, 1997
    Assignee: Hauni Maschinenbau AG
    Inventors: Firdausia Chehab, Stefan Fietkau, Peter-Franz Arnold, Thomas Juschus, Clemens Schmick
  • Patent number: 5595196
    Abstract: A method for producing a filter cigarette with tipping paper having improved lip release properties. Lip release chemicals are applied to one side of a base tipping paper during its manufacture in a papermaking process by surface coating, followed by manufacture of the cigarette using otherwise conventional apparatus and materials according to known procedures.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: January 21, 1997
    Assignee: Enso-Gutzeit Oy
    Inventors: Hannu Salonen, Helena Kanervo
  • Patent number: 5453144
    Abstract: In a process for manufacturing degradable cigarette filters wherein adhesive is applied to at least one longitudinal edge of the plug wrap paper, a bond is made while the adhesive is molten and the resultant bond is held in compression for sufficient time to prevent bond movement, the improvement which comprises, using as the adhesive, a water sensitive hot melt adhesive comprising 50 to 90 weight percent of a graft copolymer which copolymer comprises 40 to 85 weight percent of at least one vinyl monomer and 15 to 60 weight percent of at least one polyalkylene oxide polymer, 0 to 50 weight percent of a compatible tackifying resin, 5 to 40 weight percent of a polar wax, 0 to 3 weight percent antioxidant and 0 to 30 weight percent of another compatible water soluble or water sensitive thermoplastic polymer; characterized in that the resulting cigarette filter will open when exposed to moisture.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: September 26, 1995
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Thomas F. Kauffman, Joseph Wieczorek, Jr., Stephen F. Hatfield
  • Patent number: 5141000
    Abstract: A tobacco product consists of a preportioned tobacco strand (10) surrounded by a preformed tubular cigarette paper wrapper (11; 17). The tobacco strand is formed of individual tobacco fibers which are interconnected to each other by a binding agent to form a dimensionally stable tobacco strand. The binding agent and the fibers are each smokable but the outer surface of the tubular dimensionally stable tobacco strand is air pervious so that the strand as such is not directly smokable. The dimensionally stable strand (10) is inserted into the preformed tubular cigarette paper wrapper (11) to form a smokable cigarette. The one end of the strand is tapered for easier insertion of the strand into the preformed cigarette paper wrapper.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: August 25, 1992
    Inventors: Heinrich W. Ruppert, Klaus G. Gatschmann
  • Patent number: 5125421
    Abstract: An improved tobacco filter or plug wrap is made by calendering ultraporous paper. The calendering process reduces surface irregularities, reduces the thickness of the paper, and reduces the porosity. In general, during the calendering step, the ultraporous paper should be reduced in thickness from about 0.1 mils. to about 2.5 mils.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: June 30, 1992
    Assignee: P. H. Glatfelter Company
    Inventor: Melvin G. Mitchell
  • Patent number: 5044381
    Abstract: A closed cigarette filter for preventing tobacco from coming into direct contact with the mouth of the user and filtering undesirable products in the smoke, which includes strip of filter material having one edge cut to define multiple, adjacent panels or fingers, which strip is capable of being shaped in a tubular configuration and applied to the end of a cigarette, with the upward-standing panels located above the open end of the filter and the panels subsequently folded inwardly, either in at random or in a repeating pattern, to close the open end of the filter and provide a filter medium. In a preferred embodiment of the invention the filter includes a vent which facilitates escape of smoke from the interior of the filter and prevents further accumulation of products of combustion on the panels when the cigarette is burning, but is not being smoked.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: September 3, 1991
    Inventor: Annie R. Thomas
  • Patent number: 4986284
    Abstract: Apparatus for applying adhesive foam or other liquid-based ingredients to the ends of cigarettes includes a source of suction, a device for carrying and moving a series of flexible tubular sealing members 50 each of which is aligned with a respective cigarette in a treatment station, and an arrangement for moving each sealing member into engagement with a respective cigarette and for connecting each sealing member to the source of suction, characterised in that each sealing member is so shaped that an end portion 54 thereof can engage around the end portion of the corresponding cigarette, and that suction transmitted through the sealing member causes the end portion of the sealing member to contract and thus grip the cigarette. A pressure air source may also be included to expand each sealing member as it moves over the end of the corresponding cigarette.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: January 22, 1991
    Assignee: Molins PLC
    Inventors: Michael J. Cahill, John Dawson, Brian H. Warner
  • Patent number: 4967774
    Abstract: A smoking article including a short, combustible, carbonaceous fuel element in a heat exchange relationship with a physically separate aerosol generating means, and a mouthend piece. Smoking articles of the present invention include means for retaining the fuel element in a predetermined position relative to other components of the smoking article. Preferred smoking articles of the present invention are capable of providing the user with the pleasures of smoking by heating but not burning tobacco.
    Type: Grant
    Filed: October 11, 1989
    Date of Patent: November 6, 1990
    Assignee: R. J. Reynolds Tobacco Company
    Inventor: Jackie L. White
  • Patent number: 4966170
    Abstract: A method and apparatus are disclosed for applying foamed material to tobacco, and for drying and setting the foamed material, particularly in connection with the making of cigarettes. The foamed material may be added to the tobacco, for example, in the paper guide section of a cigarette maker, at the garniture mouth or through the short tongue or through both, or at the chimney. Drying and setting can occur in the chimney, on the vacuum belt, or in the garniture, after the material has been applied to the tobacco filler, Drying can be accomplished, for example, by using heated air or microwave radiation. Addition of material to tobacco filler, during the cigarette making process in the form of foam, results in a cigarette in which the material added is more uniformly distributed.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: October 30, 1990
    Assignee: Philip Morris Incorporated
    Inventors: Gus D. Keritsis, Jose G. Nepomuceno, Douglas E. Albertson, Lewis A. Haws
  • Patent number: 4898187
    Abstract: Loss of tobacco from the ends of cigarettes is reduced or prevented by applying foamed adhesive thereto. The foam may in general be blown onto the cigarette ends [(FIGS. 1, 2 and 4)] or may be "printed" onto the cigarette ends [(FIG. 3 and FIGS. 5 and 6)]. The expansion ratio of the foam in preferably at least 10:1, so that very little liquid adhesive is needed to contact a significant area of tobacco. Thus the liquid content of the adhesive may be readily absorbed into the tobacco so as not to create a drying problem. In a preferred example [(FIG. 1)] foam is supplied by a pipe [24] to fill apertures on a disc [20] from which measured quantities of foam are blown by an air jet from a pipe [28.] Suction is applied to the filter ends [108]of the cigarettes via a manifold [18] and flexible seals [12C] to help in drawing the foam into the cigarettes.
    Type: Grant
    Filed: September 20, 1988
    Date of Patent: February 6, 1990
    Assignee: Molins PLC
    Inventors: Dennis Hinchcliffe, Francis A. M. Labbe, Desmond W. Molins, Paul R. Wiese
  • Patent number: 4785831
    Abstract: Loss of tobacco from the ends of cigarettes is reduced or prevented by applying foamed adhesive thereto. The foam may in general be blown onto the cigarette ends or may be "printed" onto the cigarette ends. The expansion ratio of the foam in preferably at least 10:1, so that very little liquid adhesive is needed to contact a significant area of tobacco. Thus the liquid content of the adhesive may be readily absorbed into the tobacco so as not to create a drying problem. In a preferred example foam is supplied by a pipe to fill apertures on a disc from which measured quantities of foam are blown by an air jet from a pipe. Suction is applied to the filter ends of the cigarettes via a manifold and flexible seals to help in drawing the foam into the cigarettes.
    Type: Grant
    Filed: September 19, 1986
    Date of Patent: November 22, 1988
    Assignee: Molins PLC
    Inventors: Dennis Hinchcliffe, Francis A. M. Labbe, Desmond W. Molins, Paul R. Wiese
  • Patent number: 4776354
    Abstract: In one aspect, the invention provides a simple, readily manufacturable, low tar cigarette with individual puff deliveries similar to those obtained from conventional cigarettes which have a higher total smoke delivery such as a full flavor cigarette. The low tar cigarette includes a tobacco rod segment having a length of 53 mm. or less abutting a filter segment having an overall length of at least 31 mm. wherein the filter segment includes a synthetic fiber filter plug and provides a smoke delivery reduction of at least 55% and wherein the cigarette has an average puff count of 6.5 or less. In another aspect, the invention provides nonconventional smoking articles which have an elongated nonsmokable mouthend portion, i.e.
    Type: Grant
    Filed: January 2, 1987
    Date of Patent: October 11, 1988
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: Alan B. Norman, Thomas A. Perfetti, Michael F. Dube
  • Patent number: 4774971
    Abstract: A cigarette substitute is provided which satisfies the smokers psychological and pharmacological need for a cigarette, without exposing him, or others, to the ill-effects associated with inhalation of smoke, tar and other combustion products. This cigarette substitute is a smokeless cigarette designed to satisfy the smokers physical and pharmacological needs of nicotine, without sujecting either the smoker, or others in his immediate vicinity, to exposure to cigarette smoke. It is also intended to satisfy the smoker's psychological needs of having something to occupy the hands and/or mouth and to simulate the act of puffing on a cigarette.
    Type: Grant
    Filed: June 3, 1986
    Date of Patent: October 4, 1988
    Inventor: Michael J. Vieten
  • Patent number: 4716912
    Abstract: A smoking article in the form of a filter cigarette can have adjustable air dilution capabilities. The filter element is movable toward and away from the tobacco rod along the longitudinal axis of the cigarette. Perforations in the tipping material of the cigarette expose the inner region of the cigarette and provide air dilution capabilities when the filter element and tobacco rod are in a spaced apart relationship. When the filter element and the tobacco rod are in a substantially abutting relationship, the perforations in the tipping material overlie a substantially air impermeable region of the tobacco rod thereby providing a low or non air diluted cigarette.
    Type: Grant
    Filed: February 14, 1986
    Date of Patent: January 5, 1988
    Assignee: R. J. Reynolds Tobacco Company
    Inventor: Gerard E. Leonard
  • Patent number: 4679574
    Abstract: A cigarette made of cut tobacco rolled in a paper having a refractory layer with a predetermined pattern bonded to or imprinted upon the interior surface of the paper. The pattern is formed outside of rows and columns of what eventually become elongated slots when the paper burns away. The slots are arranged in lengthwise rows and also are arranged in columns. Each row has a slot midpoint which lies midway between slots in each adjacent row.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: July 14, 1987
    Assignee: C. Allen Jensen
    Inventors: Paul W. Lang, Franklin C. Gribshaw
  • Patent number: 4675064
    Abstract: A tobacco smoke filter includes a smoke pervious rod of plastic material about which a smoke impervious plastic overwrap film is extruded. In the preferred embodiment, the overwrap and the rod are made of the same material, e.g., cellulose acetate. By using the same material, waste from the normal filter-making processes can be formed into granules or pellets and rendered molten for re-cycling as the raw material for the overwrap film. The resulting filter can be used with or without a tipping paper cover and can be perforated or not, as desired, to ventilate the filter rod.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: June 23, 1987
    Assignee: American Filtrona Corporation
    Inventor: Richard M. Berger
  • Patent number: 4619276
    Abstract: A method and apparatus are disclosed for applying foamed material to tobacco, particularly in connection with the making of cigarettes. The foamed material may be added to the tobacco, for example, in the paper guide section of a cigarette maker at the garniture mouth (21) or through the short tongue (30) or through both, or at the chimney (10). Addition of a foamed material to the tobacco, during the cigarette making process, results in a cigarette in which the material added is more uniformly distributed.
    Type: Grant
    Filed: August 3, 1984
    Date of Patent: October 28, 1986
    Assignee: Philip Morris Incorporated
    Inventors: Douglas E. Albertson, James O. Dyson, Eugene B. Fischer, Robert T. Gaudlitz, Lewis A. Haws, Gus D. Keritsis, Louis L. Long, Charles S. McClung, Jose G. Nepomuceno, Steven R. Wagoner
  • Patent number: 4614199
    Abstract: A tobacco smoke filter includes a smoke pervious rod of plastic material about which a smoke impervious plastic overwrap film is extruded. In the preferred embodiment, the overwrap and the rod are made of the same material, e.g., cellulose acetate. By using the same material, waste from the normal filter-making processes can be formed into granules or pellets and rendered molten for re-cycling as the raw material for the overwrap film. The resulting filter can be used with or without a tipping paper cover and can be perforated or not, as desired, to ventilate the filter rod.
    Type: Grant
    Filed: November 23, 1982
    Date of Patent: September 30, 1986
    Assignee: American Filtrona Corporation
    Inventor: Richard M. Berger
  • Patent number: 4570650
    Abstract: A cigarette has a front tobacco-containing part composed of a tubular member of cigarette paper and a tobacco filler, a rear part extending rearwardly from the front part and having a filter, and a tubular coating extending around at least one fourth of the length of the front part from the rear end of the latter, so as to extinguish the cigarette when the flame reaches this region and prevent smoking of the cigarette in this region. The tubular coating is formed of one piece with a tubular connector which connects the filter with the tobacco-containing part of the cigarette.
    Type: Grant
    Filed: July 28, 1983
    Date of Patent: February 18, 1986
    Inventor: Vladimir Sirota
  • Patent number: 4493331
    Abstract: A filter for a cigarette which includes a protrusion of smoke permeable material integral with and coaxially projecting from the mouth end of the filter rod. The mouth end of the filter rod surrounding the protrusion is smoke impermeable so that as the cigarette to which the filter is attached is smoked, the smoke will exit the filter rod in generally radially outward direction through the smoke permeable protrusion.
    Type: Grant
    Filed: August 2, 1982
    Date of Patent: January 15, 1985
    Assignee: Brown & Williamson Tobacco Corporation
    Inventor: Harry S. Porenski, Jr.
  • Patent number: 4469112
    Abstract: A compound cigarette filter, the filter having the ability to deliver substantially constant tar and nicotine as the cigarette is smoked. The compound filter comprises a barrier positioned upstream and in abutting relationship with at least one filter segment, the barrier containing passageways permitting the passage of smoke from a tobacco column to the filter segment, the total cross-sectional passageway area being from 0.5 to 3 square millimeters, the compound filter having an initial totally encapsulated pressure drop of at least 90 mm. H.sub.2 O.
    Type: Grant
    Filed: August 23, 1982
    Date of Patent: September 4, 1984
    Assignee: Celanese Corporation
    Inventors: Colin L. Browne, Charles H. Keith, Peter J. Bohlander
  • Patent number: 4434805
    Abstract: The applicator roll is provided with two recesses to apply uniform layers of glue to a travelling stream of tipping paper. In addition, the applicator roll has a series of spaced apart grooves in each recess so as to apply additional stripes of glue onto the tipping paper near the edges. The additional stripes of glue provide for a more secure bonding of the tipping paper to the tobacco column of the filter cigarette construction.
    Type: Grant
    Filed: June 30, 1982
    Date of Patent: March 6, 1984
    Assignee: Liggett Group Inc.
    Inventor: Floyd V. Hall
  • Patent number: 4424819
    Abstract: A filter for a cigarette includes a porous filter rod circumscribed by a non-porous or air impermeable wrapper, and ventilating air grooves embedded in the wrapped filter rod which extend from one end of the filter rod a preselected distance generally longitudinally thereof. The ends of the grooves are recessed a predetermined distance or depth inwardly of the end of the filter rod and communicate with radially extending open channels formed in the one end of the filter rod. An air permeable tipping material circumscribes the wrapped filter rod which provides a path for ventilating air flow into the grooves. Due to the air impermeable wrapper, the air flowing in the grooves is segregated from the smoke flowing through the filter rod so that ventilating air is the only substance flowing in the grooves.
    Type: Grant
    Filed: March 31, 1982
    Date of Patent: January 10, 1984
    Assignee: Brown & Williamson Tobacco Corporation
    Inventors: Donald A. Silberstein, Andrew McMurtrie
  • Patent number: 4423744
    Abstract: An improved tobacco smoke filter is characterized by an undiluted air passage formed between a smoke-impervious plug wrap and an air-impervious tipping wrap by loosely wrapping the tipping wrap about the plug wrap along a section of the filter extending from its smoke discharge end. In a preferred embodiment, the loose wrapping is effected by reducing the cross-sectional perimeter of the rod and plug wrap along the aforesaid section while keeping the tip of the cross-sectional perimeter substantially constant throughout its length. A raised lip is provided at the smoke discharging end of the rod and plug wrap to define a cigarette holder in the filter. For circumstances where the cross-section of the filter plug becomes too complex for adherence of the tipping paper, heat shrinkable film can be laminated in the tipping paper so that after the entire cigarette is assembled, it can be subjected to heat and cause the tipping paper to shrink to the appropriate size.
    Type: Grant
    Filed: December 23, 1981
    Date of Patent: January 3, 1984
    Assignee: American Filtrona Corporation
    Inventor: Richard M. Berger
  • Patent number: 4396026
    Abstract: A filter for tobacco smoke comprises a porous substrate which has a deposit thereon of particles which are crystalline, positively charged at the pH of tobacco smoke, water-insoluble, hydrophobic, and oleophilic to provide a coalescing agent which acts to attract and neutralize the negatively charged particles which are dispersed in tobacco smoke. To increase the effectiveness of the filter, the tobacco has mixed therewith and deposited thereon particles of a water-insoluble, hydrophobic, moisture-laden, negative charge-imparting substance. Cigarettes made with tobacco thus treated furnish a number of advantages without being associated with the filter of the invention.
    Type: Grant
    Filed: November 21, 1980
    Date of Patent: August 2, 1983
    Assignee: Montclair Research Corporation
    Inventor: Harold Grossman
  • Patent number: 4387728
    Abstract: A filter for a cigarette includes a porous filter rod circumscribed by a non-porous wrapper wherein the filter rod with the non-porous wrapper therearound is provided with grooves extending from one end thereof a preselected distance longitudinally therealong. The grooves are open to the atmosphere and may be oriented to extend to the mouth end of the filter when connected to a cigarette, to the tobacco end of the filter when connected to the cigarette, or non-connecting grooves which extend from each end of the filter element a preselected distance therealong.
    Type: Grant
    Filed: March 19, 1981
    Date of Patent: June 14, 1983
    Assignee: Brown & Williamson Tobacco Corporation
    Inventors: Martin L. Reynolds, Robert R. Johnson
  • Patent number: 4366826
    Abstract: A smoke-filter rod comprises a body of rod form consisting or having as at least major constituent a thermoplastics cellulose acetate or polypropylene smoke-filtration material, preferably of a fibrous or filamentary nature, and wrapped in a plugwrap comprising at least 50%, suitably at least 90%, by weight of fibres or filaments of, respectively, cellulose acetate or polypropylene material of substantially the same chemical identity as said major constituent of the filtration material, said plugwrap being bonded to said body and having a permeability for air of not less than 10,000 Coresta units. The bonding is by an agent which is a bonding agent for the material of said plugwrap and said filtration material, suitably triacetin in the case of cellulose acetate. Portions of such filter rod can be subjected to a hot-shaping process.
    Type: Grant
    Filed: August 18, 1980
    Date of Patent: January 4, 1983
    Assignee: British-American Tobacco Company Limited
    Inventor: Henry G. Horsewell
  • Patent number: 4364403
    Abstract: A rod-form body of smoke filtration material, preferably fibrous or filamentary, is wrapped in a fibrous or filamentary plugwrap comprising at least 50% by weight of fibres or filaments of thermoplastics material. The plugwrap may have premeability for air of not less than 10,000 Coresta units. The majority, suitably at least 80% by weight, of the material of the rod-form body is a material other than the said themoplastics material of the plugwrap. Thus the smoke-filtration material may comprise crimped polypropylene tow and the plugwrap be composed substantially wholly of fibrous cellulose acetate or conversely. Portions of such filter rod may be subjected to a hot-shaping process to provide grooved filter elements.
    Type: Grant
    Filed: August 18, 1980
    Date of Patent: December 21, 1982
    Assignee: British-American Tobacco Company Limited
    Inventors: Henry G. Horsewell, John A. Luke
  • Patent number: 4362172
    Abstract: A filter for a cigarette includes a porous filter rod circumscribed by a non-porous wrapper and a tipping material having selected openings therein for allowing ventilating air to pass therethrough. Spacing members are disposed between the non-porous wrapper and tipping material to form ventilating air channels therebetween.
    Type: Grant
    Filed: December 1, 1980
    Date of Patent: December 7, 1982
    Assignee: Brown & Williamson Tobacco Corporation
    Inventor: Robert R. Johnson
  • Patent number: 4340074
    Abstract: A cigarette tipping material having non-lipsticking properties includes preselected areas of the tipping material provided with non-lipsticking coatings with other preselected uncoated areas having perforations therein.
    Type: Grant
    Filed: January 16, 1981
    Date of Patent: July 20, 1982
    Assignee: Brown & Williamson Tobacco Corporation
    Inventor: Thomas T. Tudor
  • Patent number: 4338956
    Abstract: A filter for a cigarette includes a porous filter rod circumscribed by a smoke impervious wrapper wherein the filter rod with the smoke impervious wrapper therearound is provided with grooves embedded therein and extending from one end thereof a preselected distance longitudinally therealong. Tipping material circumscribes the smoke impervious wrapper and is provided with flow-through openings therein in flow communication with the grooves. Support means are provided for the tipping material at the mouth end of the filter to maintain the tipping material in circumferential equalization.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: July 13, 1982
    Assignee: Brown & Williamson Tobacco Corporation
    Inventors: Robert A. Sanford, Robert R. Johnson
  • Patent number: 4331166
    Abstract: The sensory effect of cigarette smoke is improved by using a disc (24) to shape the flow of smoke (32) leaving smoking article (10) into a divergent pattern, thus increasing the perceived flavor of the cigarette. The effect is most useful with cigarettes having relatively low delivery of particulate matter.
    Type: Grant
    Filed: May 2, 1980
    Date of Patent: May 25, 1982
    Assignee: Philip Morris, Incorporated
    Inventor: Robert W. Hale