Cigar Or Cigarette Patents (Class 131/360)
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Patent number: 4920990Abstract: Cigarettes have a smokable filler blend comprising 60 to 75 percent tobacco cut filler and 25 to 40 percent of a second smokable cut filler consisting essentially of 50 to 70 percent calcium carbonate, 15 to 45 percent pyrolyzed cotton linters, and 7 to 12 percent polysaccharide binder. The blend is contained in a paper wrapper having a permeability from about 40 to about 75 CORESTA units. Cigarettes normally include a filter element and are air diluted to an air dilution level of from 40 to 65 percent. The smokable blend preferably is blended with a tobacco essence, and the nicotine content of the blend is greater than 2 percent. Cigarettes exhibit resistances to draw between 80 and 150 mm water pressure drop at 17.5 cc/sec. air flow. Cigarettes exhibit FTC "tar" to nicotine ratios less than 9.Type: GrantFiled: November 23, 1988Date of Patent: May 1, 1990Assignee: R. J. Reynolds Tobacco CompanyInventors: Brian M. Lawrence, Robert F. Moates, Thomas A. Perfetti, Renee M. Pogrow, Robert H. Powell, Jerry W. Redding, Cynthia A. Stewart, Karen M. Womble, Milly M. L. Wong
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Patent number: 4917128Abstract: Embodiments of the present cigarette comprise a roll or rod of tobacco wrapped by a paper wrapper, a short conbustible carbonaceous fuel element encircled by a resilient insulating member, a physically separate smoke generator including smoke forming substance located within a heat conductive container, the tobacco forming a jacket around the container and the smoke generator, and a relatively long mouthend piece.These cigarettes provide the smoker with the taste, satisfaction, feel and aroma of a cigarette without burning tobacco. Preferred cigarettes are capable of producing substantial quantities of smoke, both initially and over the useful life of the product, without thermal degradation of the smoke former and without the presence of substantial pyrolysis or incomplete combustion products or sidestream smoke.Type: GrantFiled: December 22, 1987Date of Patent: April 17, 1990Assignee: R. J. Reynolds Tobacco Co.Inventors: Jack F. Clearman, Thomas L. Gentry, Gary R. Shelar
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Patent number: 4917121Abstract: A smoking article includes a tobacco column with a gas impermeable tube concentrically located in the tobacco column. The tube is filled with a granular material which is coated with an aerosolizing material. A first chamber is located at one end of the tobacco column with its inlet end in gas flow communication only with the tube, a tobacco rod is located with its inlet end at the discharge end of the first channel, and a second chamber is located in gas flow communication with the discharge end of the tobacco rod. The discharge end of the second chamber is open for discharging gas into the smoker's mouth.Type: GrantFiled: December 9, 1988Date of Patent: April 17, 1990Assignee: Brown & Williamson Tobacco CorporationInventors: Tilford F. Riehl, Robert R. Johnson
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Patent number: 4913168Abstract: A flavor delivery article provides volatilized flavor by heating a flavor carrying substrate, but not burning any material. A heat source which includes a metal oxide (e.g., calcium oxide), an anhydrous metal sulfate (e.g., magnesium sulfate), an inorganic salt and a sugar, generates heat upon contact of water therewith. The heat produced by the heat source heats flavor in a heat exchange relationship therewith. Flavors volatilize and are drawn into the mouth of the user of the article. Typical heat sources heat the flavor to a temperature within 70.degree. C. to 200.degree. C. for 4 to 8 minutes.Type: GrantFiled: November 30, 1988Date of Patent: April 3, 1990Assignee: R. J. Reynolds Tobacco CompanyInventors: Dennis L. Potter, Mark L. Raker, Henry T. Ridings, Andrew J. Sensabaugh, Jr., Amos E. Westmoreland, Donna K. Woods, Chandra K. Banerjee
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Patent number: 4913171Abstract: An improved cigarette and method of manufacture utilizes a specialized paper incorporating a narrow air tube portion along one of its longitudinal edges, and an elongated, generally rod-shaped rolling bar inserted into and through the air tube, used to roll up and capture tobacco spread over the paper's surface. The specialized cigarette paper incorporates a strip of small filter "flaps" into the construction of the air tube. The resultant cigarette emplaces the tobacco within a single, continuously spiraling envelope of cigarette paper about the central, longitudinal air-tube axis, with the filter flaps extending radially inward to filter the cigarette smoke.Type: GrantFiled: November 25, 1987Date of Patent: April 3, 1990Inventor: Leonard J. Lasko
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Patent number: 4898191Abstract: A smoking device having a fuel column circumscribed by a wrapper has a passage with an impermeable wall extending concentrically therethrough and a filter rod at one end of the fuel column in flow communication only with the passage. The passage is filled with a material including an aerosol releasing material. The filter is formed with a pocket coaxial with the tube and the pocket is filled with highly flavorful tobacco.Type: GrantFiled: December 9, 1988Date of Patent: February 6, 1990Assignee: Brown & Williamson Tobacco CorporationInventors: Robert R. Johnson, Tilford F. Riehl
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Patent number: 4893638Abstract: A cigarette having a generally cylindrical tobacco rod having a tobacco filler of ground tobacco. The tobacco rod has a circumference within the range of 10 mm to 19 mm. The tobacco rod is circumscribed by a combustible paper.Type: GrantFiled: December 9, 1988Date of Patent: January 16, 1990Assignee: Brown & Williamson Tobacco CorporationInventor: John H. Lauterbach
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Patent number: 4878507Abstract: Low sidestream cigarettes comprise at least 20% expanded tobacco and cigarette paper of an air permeability of not more than 20 Coresta units, the tobacco density being between 100 and 260 mg cm.sup.-3.Type: GrantFiled: September 2, 1988Date of Patent: November 7, 1989Assignee: British-American Tobacco Company, Ltd.Inventors: Paul D. Case, David J. Dittrich
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Patent number: 4854331Abstract: The present invention relates to a smoking article which produces an aerosol that resembles tobacco smoke, but contains no more than a minimal amount of incomplete combustion or pyrolysis products.Preferred embodiments of the present smoking article comprise a short combustible carbonaceous fuel element, a heat stable substrate bearing an aerosol forming substance, a heat conducting member which contacts a portion of the fuel element and the substrate, and an insulating jacket surrounding at least a portion of the fuel element.The smoking article of the present invention is capable of providing an aerosol "smoke" which is chemically simple, consisting essentially of air, oxides of carbon, water, and the aerosol which carries any desired flavorants or other desired volatile materials, and trace amount of other materials. The aerosol "smoke" from the preferred embodiments has no significant mutagenic activity as measured by the Ames Test.Type: GrantFiled: November 20, 1985Date of Patent: August 8, 1989Assignee: R. J. Reynolds Tobacco CompanyInventors: Chandra K. Banerjee, Ernest G. Farrier, James L. Harris, Alan B. Norman, James L. Resce, John H. Reynolds, IV, Henry T. Ridings, Andrew J. Sensabaugh, Jr., Michael D. Shannon, Gary R. Shelar
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Patent number: 4846199Abstract: A method and an apparatus for regenerating tobacco smoke separation of the gaseous constituents from the condensed constituents. The gaseous constituents which contain many of the harmful substances in tobacco smoke are eliminated and the residue of the condensed constituents is collected. For purposes of smoking the condensate, an aerosol is produced from this condensate for inhalation by the smoker. Heating is an effective means to produce the aerosol and since the heating occurs at low temperature, there is no re-combustion of tobacco and the attendant production of harmful constituents.Type: GrantFiled: March 17, 1986Date of Patent: July 11, 1989Assignee: The Regents of the University of CaliforniaInventor: Jed E. Rose
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Patent number: 4838286Abstract: In a smoking article comprising a smoking rod and a mouthpiece, the rod may comprise a wrapped body, of particles of tobacco and/or other smoking material, of which body the packing density is in a range of from 100 to 400 mg cm.sup.-3, a passage extending within the rod and in gas-flow communication with the mouthpiece and the article comprising menthol or other vapor-release material at the mouthpiece and/or at a mouthpiece-end zone of the passage.The passage, which may extend substantially to the mouthpiece end of the rod, may be closed at the end thereof remote the mouthpiece end.The passage may be provided by a tube of combustible material or as a bore extending within said body of particles.A portion of the cross-section of the mouthpiece end of the rod not occupied by said passage may be in gas-flow communication with the mouthpiece. The mouthpiece may comprise a filter.Type: GrantFiled: March 27, 1987Date of Patent: June 13, 1989Assignee: British-American Tobacco Company LimitedInventor: James W. P. Phelpstead
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Patent number: 4825885Abstract: A cigarette having a tobacco rod circumscribed by a combustible wrapper. The wrapped tobacco rod includes a plurality of circumferential grooves embedded in the wrapper and underlying tobacco rod.Type: GrantFiled: February 25, 1988Date of Patent: May 2, 1989Assignee: Brown & Williamson Tobacco CorporationInventor: Christopher N. Kounnas
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Patent number: 4793367Abstract: A novel cigarette structure is provided which permits a cigarette of lower tar to be provided without impairing the flavor. Strips of more highly-flavored tobacco are provided on opposite sides and sandwich a layer of lesser-flavored tobacco between them.Type: GrantFiled: November 26, 1986Date of Patent: December 27, 1988Assignee: Rothmans of Pall Mall Canada LimitedInventor: Warren A. Brackmann
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Patent number: 4793365Abstract: The present invention relates to a smoking article which produces an aerosol that resembles tobacco smoke, but contains no more than a minimal amount of incomplete combustion or pyrolysis products.The smoking article of the present invention provides an aerosol "smoke" which is chemically simple, consisting essentially of oxides of carbon, air, water, and the aerosol which carries any desired flavorants or other desired volatile materials, and trace amounts of other materials. The aerosol "smoke" has no significant mutagenic activity as measured by the Ames Test. In addition, the article may be made virtually ashless so that the user does not have to remove any ash during use.One embodiment of the present smoking article comprises a short combustible carbonaceous fuel element; a short heat stable, preferably carbonaceous substrate bearing an aerosol forming substance, and a relatively long mouthend piece.Type: GrantFiled: September 14, 1984Date of Patent: December 27, 1988Assignee: R. J. Reynolds Tobacco CompanyInventors: Andrew J. Sensabaugh, Jr., Henry T. Ridings, John H. Reynolds, IV
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Patent number: 4787401Abstract: A novel cigarette structure is provided which produces an approximately uniform delivery of flavour along its length as the cigarette is smoked. The filler rod of the cigarette has a strip of more highly-flavoured tobacco to one side or to two sides of the rod, with the remainder of the cross-section of the rod being formed of lower flavoured tobacco, and has a higher proportion of the more highly-flavoured tobacco than the lower flavour tobacco at the lighting end. The cigarette filler rod of improved smoking characteristics may be formed by a simplified assembly procedure.Type: GrantFiled: November 26, 1986Date of Patent: November 29, 1988Assignee: Rothmans of Pall Mall LimitedInventor: Warren A. Brackmann
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Patent number: 4771795Abstract: The present invention preferably relates to a smoking article which is capable of producing substantial quantities of aerosol, both initially and over the useful life of the product, without significant thermal degradation of the aerosol former and without the presence of substantial pyrolysis or incomplete combustion products or sidestream aerosol. The article employes a dual burn rate fuel element, which utilizes a fast burning segment and a slow burning segment.The use of such a dual burn rate fuel element has several advantages over conventional homogeneous fuels. For example, the fast burning component assists in the ease of lighting the fuel element, and provides rapid heat transfer to the aerosol generating means. This in turn, provides early aerosol delivery.The slow burning component provides for even heat distribution throughout the burn period.Type: GrantFiled: May 15, 1986Date of Patent: September 20, 1988Assignee: R. J. Reynolds Tobacco CompanyInventors: Jackie L. White, Bradley J. Ingebrethsen
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Patent number: 4770192Abstract: The segmented cigarette includes combustible inside and outside tubular walls that are spaced from each other by ridges extending therebetween. The inside wall holds a plurality of elongated segments of tobacco aligned end to end. Different tobaccos may be utilized in each segment. The upstream, axial end of each segment is sealed by paper. The inside wall includes a plurality of gas passages therethrough near the axial end seal such that gas from the burning end of the cigarette passes through those passages into the interspace between the outside and inside walls, expands and cools. This cooling and expansion reduces the accumulation of noxious substances in the segments of tobacco downstream.Type: GrantFiled: March 23, 1987Date of Patent: September 13, 1988Inventor: Alberto De La Cerda
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Patent number: 4768527Abstract: Co-extruded smokable material in sheet-like form has a multi-layered structure. The layers are generally parallel to the major surface of the material. The material is provided by subjecting at least two filler materials to high shear agitation and co-extruding the materials while in a semi-soft state. The multi-layered material can be sized by roll treatment in order to provide a sheet-like material having a thickness of less than about 0.008 inch. In particular, the co-extruded multi-layered smokable material is subjected to compressive treatment applied perpendicularly to the major surface of the co-extruded marterial to provide a co-extruded smokable material of reduced thickness. The material so provided can be cut into small sheets (e.g., about 4 inches by 4 inches square) or into strands and employed as cut filler in the manufacture of cigarettes.Type: GrantFiled: January 23, 1987Date of Patent: September 6, 1988Assignee: R. J. Reynolds Tobacco CompanyInventor: William H. Graves, Jr.
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Patent number: 4759380Abstract: Filter cigarettes can be manufactured in a highly cost effective manner. Filter cigarettes include a tobacco rod having two segments of smokable material. The first segment is positioned at the lighting end of the cigarette and includes expensive, normally high quality tobaccos. The second segment is positioned at the filter end of the rod and includes cost effective smokable materials. A cellulose acetate filter element is axially aligned with the rod and is positioned adjacent to the second segment. Tipping material attaches the filter element to the tobacco rod. The second segment extends along the rod up to about 20 mm past the foremost point which the tipping material extends. The combined longitudinal length of the filter element and the second segment extends up to about 60 percent of the total length of the smoking article.Type: GrantFiled: November 3, 1986Date of Patent: July 26, 1988Assignee: R. J. Reynolds Tobacco CompanyInventors: Alan B. Norman, Thomas A. Perfetti, Barry L. Saintsing, Kenneth W. Swicegood
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Patent number: 4756318Abstract: The present invention preferably relates to a smoking article which is capable of producing substantial quantities of aerosol, both initially and over the useful life of the product, without significant thermal degradation of the aerosol former and without the presence of substantial pyrolysis or incomplete combustion products or sidestream aerosol.Preferred embodiments of the present smoking article comprise a short combustible carbonaceous fuel element, a physically separate aerosol generating means including an aerosol forming substance, a physically separate tobacco jacket around at least the aerosol generating means, and a relatively long mouth end piece.The articles of the present invention provide the user with taste, feel and aroma, associated with the smoking of conventional cigarettes. Tobacco in many embodiments of this invention is burned to provide a sidestream aroma and smoke. In other embodiments, tobacco does not burn, but still provides tobacco flavors to the aerosol delivered to the user.Type: GrantFiled: October 28, 1985Date of Patent: July 12, 1988Assignee: R. J. Reynolds Tobacco CompanyInventors: Jack F. Clearman, Thomas L. Gentry, Gary R. Shelar
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Patent number: 4730628Abstract: Cigarette rods include four segments of smokable material. First and second segments are positioned at the extreme ends of the rod. The first segment is positioned at the end of the rod to be lit. A third segment is positioned adjacent the first segment, and a fourth segment is positioned adjacent the second segment. The density of the third segment is greater than the fourth segment. The first and second segments can be "dense ends" or "loose ends" relative to the respective adjacent segments. The cigarette rods have a relatively uniform burn rate provided by treatment of the wrapping material of the rod with burn rate suppressants and burn rate accelerators in the positions thereof which overlie the third and fourth segments, respectively.Type: GrantFiled: July 21, 1986Date of Patent: March 15, 1988Assignee: R. J. Reynolds Tobacco CompanyInventors: David E. Townsend, Thomas A. Perfetti
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Patent number: 4729387Abstract: Cigarettes with soft cores are produced by forming a continuous stream having a U-shaped cross-sectional outline and advancing the stream along a stationary mandrel and past a shower of tobacco which conceals the mandrel and forms with the stream a ring-shaped filler which is stripped off the mandrel, draped into a web of cigarette paper and subdivided into cigarettes of desired length.Type: GrantFiled: June 13, 1986Date of Patent: March 8, 1988Assignee: Korber AGInventors: Wolfgang Steiniger, Manfred Goldbach
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Patent number: 4727888Abstract: In the making of cigarette rod, which rod comprises an axial element of filler material and a wrapper surrounded by smoking material and an exterior wrapper, a web of the exterior wrapper material, a stream of the smoking material and a preformed rod, providing the axial element, are fed to the garniture of a cigarette rod making machine. The rod providing the axial element is made on a further rod making machine.Type: GrantFiled: January 22, 1986Date of Patent: March 1, 1988Assignee: British-American Tobacco Company LimitedInventor: John A. Luke
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Patent number: 4715389Abstract: A cigarette having internal heat sinks of aluminum mesh and a section of carbonized flue-cured tobacco stem material containing adsorbed nicotine produces smoke having lower TPM and higher nicotine than smoke from conventional cigarettes.Type: GrantFiled: September 15, 1986Date of Patent: December 29, 1987Assignee: R. J. Reynolds Tobacco CompanyInventors: Dwo Lynm, Carl C. Morrison, Ronald W. Hutcherson, Sr.
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Patent number: 4700726Abstract: Cigarette rods include four segments of smokable material. First and second segments are positioned at the extreme ends of the rod. The first segment is positioned at the end of the rod to be lit. A third segment is positioned adjacent the first segments, and a fourth segment is positioned adjacent the second segment. The density of the third segment is greater than the fourth segment. The first and second segments can be "dense ends" or "loose ends" relative to the respective adjacent segments.Type: GrantFiled: May 2, 1986Date of Patent: October 20, 1987Assignee: R. J. Reynolds Tobacco CompanyInventors: David E. Townsend, Diane R. Frye, Tammie B. Greene, Thomas A. Perfetti
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Patent number: 4679575Abstract: A cigarette which produces a decreased amount of tar when being smoked. In the cigarette (10) of the invention, a fire-retarding agent is present inside or on the outer surface of a rolling material (14), and a combustion promoter is present in shredded tobacco (12) or on the inner surface of the rolling material (14).Type: GrantFiled: July 8, 1985Date of Patent: July 14, 1987Assignee: Japan Tobacco Inc.Inventors: Katsunori Yamaguchi, Nagaaki Takemoto
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Patent number: 4637410Abstract: A cigarette comprises a tobacco rod of tobacco filler wrapped in a paper wrapper, the circumference of the rod being within a range of 10 mm to 19 mm and the free burn rate of the rod being within a range of 25 to 45 mg min.sup.-1. The cigarette may comprise considerably less tobacco than a cigarette of orthodox circumference yet yield an equal or greater number of puffs.Type: GrantFiled: July 22, 1985Date of Patent: January 20, 1987Assignee: Brown & Williamson Tobacco CorporationInventor: John A. Luke
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Patent number: 4632130Abstract: A tobacco filler is formed in a machine which turns out two trough-shaped tobacco streams whose concave sides face each other. The two streams are thereupon caused to merge and to form a single stream whose central portion is less dense than the outer layer. The single stream is then compacted in the wrapping mechanism of the machine so that its cross section matches that of a cigarette, and the resulting filler is draped into cigarette paper prior to subdivision into discrete cigarettes of desired length. The density of the central portion of the filler in each cigarette is less than the density of the layer which is immediately adjacent to the wrapper. This improves the burning characteristics of the cigarettes and allows for a reduction of the quantity of tobacco which is needed to make a cigarette exhibiting a desired firmness.Type: GrantFiled: October 11, 1984Date of Patent: December 30, 1986Assignee: Hauni-Werke Korber & Co. KG.Inventors: Uwe Heitmann, Heinz-Christen Lorenzen, Wolfgang Steiniger
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Patent number: 4611607Abstract: A filter for a cigarette includes a porous filter rod circumscribed by a non-porous wrapper provided with at least one groove embedded into the periphery of the filter rod extending from the mouth end thereof a preselected distance longitudinally therealong less than the entire length of the filter rod. Tipping material circumscribes the non-porous wrapper and is provided with flow-through openings therein in flow communication with the groove. The tipping material extends beyond the mouth end thereof defining a recess, and the filter rod includes a cylindrical collar coaxially located in the recess concentrically with the portion of the tipping material extending beyond the filter rod mouth end. The thickness of the wall of the collar is less than the depth of the groove which collar functions as a baffle to accelerate the velocity of the air leaving the groove.Type: GrantFiled: February 11, 1985Date of Patent: September 16, 1986Assignee: Brown & Williamson Tobacco CorporationInventors: Martin L. Reynolds, Dorothy M. Frank, Tilford F. Riehl, Andrew McMurtrie
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Patent number: 4600025Abstract: A smoking product comprising an inert combustible substrate to which has been applied a nicotine-substitute-effective amount of a compound selected from the group consisting of 2-methyl-5-(pyrrolidinomethyl) thiazole and 2-methyl-5-(piperidinomethyl) thiazole, and the acid addition salts thereof. Thus, for example, a cigarette may include an inert combustible material which is a tobacco substitute onto which one or other effective compound has been impregnated.Type: GrantFiled: May 6, 1983Date of Patent: July 15, 1986Inventors: Ronald E. Grigg, Kitti Amornraksa
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Patent number: 4598720Abstract: A substantial amount of tar, nicotine, and some other hydrocarbons in the smoke of a cigarette could be condensed on a metallic surface, if that metallic surface is properly positioned inside that cigarette.The metallic surface in this disclosure may be porous pellets of aluminum foil which may be scattered amid the tobacco of the cigarette, or they may be axially arranged as a column in the cigarette. Also, using these porous pellets of aluminum foil in a cigarette can find a use in medicine, as they may be filled with a dosage of a medicament.Type: GrantFiled: April 29, 1984Date of Patent: July 8, 1986Inventor: Naeem B. Gabriel
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Patent number: 4585016Abstract: A composite expanded web for making a cigarette wrapper is provided, the web comprising a laminate of a first web of generally flat sheet material and a second web of expanded sheet material. The expanded web is formed by passing a web of sheet material through rotary shearing and forming dies to impart to the web a configuration having longitudinally disposed rows of generally sinusoidal convolutions extending above and below the original plane of the web, each row of convolutions lying 180.degree. out of phase from its abutting rows. The composite web is formed into a wrapper for a smoking article by curling it about its longitudinal axis, securing the overlapping edges of the first web with a glue seam, and cutting it to the desired length.Type: GrantFiled: May 23, 1984Date of Patent: April 29, 1986Assignee: Philip Morris IncorporatedInventor: Everett C. Grollimund
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Patent number: 4574821Abstract: An expanded wrapper is provided which includes a flexible layer of sheet material with stiffening means attached to a surface of the sheet material. The expanded wrapper can be used in the fabrication of smoking articles thus providing an article in which the resulting firmness and rigidity can be made independent of the density of the smoking material.Type: GrantFiled: March 22, 1984Date of Patent: March 11, 1986Assignee: Philip Morris IncorporatedInventors: Eugene B. Fischer, A. Clifton Lilly
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Patent number: 4481954Abstract: The invention concerns a method for modifying the peripheral conformation of a cigarette, which has an external, heat deformable, wrapper comprising a proportion of thermoplastic fibers or filaments. The method comprises the application of heat to the wrapper. Heat is applied by a heat forming means moved relatively and in contact with the cigarette, in a direction transverse to the longitudinal axis of the cigarette.Type: GrantFiled: July 27, 1982Date of Patent: November 13, 1984Assignee: British-American Tobacco Company LimitedInventors: John A. Luke, Kenneth J. H. MacLean
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Patent number: 4481960Abstract: A smoking article which comprises a rod of smoking material contained within a wrapper has an air-permeability in a range of from 20 to about 120 Coresta units and is provided in the region of the mouth end, with ventilation means to give a degree of ventilation of 15 to 90%, the ratio of carbon-monoxide yield to tar yield of the smoking article being significantly less than 0.9. If the article has a tip means, the ventilation means may be provided, at least partially, in the tip means. The smoking material may include a high proportion of lamina-leaf tobacco having a relatively high nicotine content. Tobacco in the smoking material, possibly including stem tobacco, is coarsely cut or shredded. The smoking material may include up to 60% of expanded tobacco. The wrapper may contain an addition of a burn-promoting agent.Type: GrantFiled: July 27, 1982Date of Patent: November 13, 1984Assignee: British-American Tobacco Company LimitedInventor: Geoffrey O. Brooks
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Patent number: 4391285Abstract: Smoking articles comprising a high density, relatively low porosity coherent mass of combustible tobacco-containing material having at least one passage extending therethrough are disclosed. In a preferred embodiment the smoking article is a cylinder having at least one passage axially therethrough. The smoking article may further comprise a plug of ignitable material in passage blocking position at one end of the passage, said plug being such as to permit puff induced air flow therethrough. At least one additional plug may be similarly disposed at the opposite end of the passage or at an intermediate point in the passage. By adjusting the density, the surface area and/or the porosity of the mass available for combustion, the per puff delivery of tar by the smoking article upon combustion may be controlled.Type: GrantFiled: May 9, 1980Date of Patent: July 5, 1983Assignee: Philip Morris, IncorporatedInventors: George H. Burnett, Warren E. Claflin, Harry V. Lanzillotti, A. Clifton Lilly, Jr., John F. Nienow, Thomas S. Osdene, Alline R. Wayte
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Patent number: 4347855Abstract: A method of making smoking articles wherein a combustible tobacco material is mixed with one or more other ingredients including a liquid, the mixture being subjected to further processing to produce a shaped coherent mass having a through passage. Shaping is effected by application of pressure to the mixture to form the coherent mass, and is followed by drying of same, the mixture composition being selected and the shaping pressure and drying being controlled to impart to the shaped mass a porosity and density such as to substantially occlude gas flow therethrough and a porosity sufficient to support combustion of the shaped mass when ignited.Type: GrantFiled: September 18, 1981Date of Patent: September 7, 1982Assignee: Philip Morris IncorporatedInventors: Harry V. Lanzillotti, George H. Burnett, Alline R. Wayte, Thomas S. Osdene, Warren E. Claflin, A. Clifton Lilly, Jr., John F. Nienow
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Patent number: 4340072Abstract: A smokeable device has an annular fuel rod in gaseous communication with a mouth-end chamber. The chamber contains a quantity of inhalent material which, when contacted by hot gases during smoking forms an aerosol for inhalation by the smoker.Type: GrantFiled: November 12, 1980Date of Patent: July 20, 1982Assignee: Imperial Group LimitedInventors: Anthony J. N. Bolt, Brian C. Chard
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Patent number: 4328817Abstract: A smoking article comprises a rod of smoking material, wrapped in a wrapper, in which rod the packing density of the smoking material varies continuously along at least a major portion of the overall length of the rod, but is constant across any section, within said portion, in a plane perpendicular to the longitudinal axis. The smoking material may be of homogeneous constitution throughout the rod. Preferably the density decreases continuously along the said portion of the rod in the direction away from the end of the rod to be lit, from which end the said portion may extend to substantially the other end of the rod. There may be between a 5% and a 40% weight difference between the more dense half of the length of the rod and the less dense half thereof. The density at the less dense end of the rod may be in the range of 170 to 240 mg cm.sup.-3 and that at the denser end in the range of 290 to 350 mg cm.sup.-3.Type: GrantFiled: October 3, 1980Date of Patent: May 11, 1982Assignee: British-American Tobacco Company LimitedInventors: Donald B. Naylor, Richard R. Baker
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Patent number: 4319587Abstract: An improved smoking article, such as a cigarette or cigar, having means for controlling quickly, accurately and selectively the extent of consumption of the smoking article, to assist a habitual smoker in voluntarily curtailing or terminating his smoking habit. The control means comprises a generally tubular outer wrapping on the article on which are marked, printed, or otherwise imposed, spaced indicia in the nature of a scale, extending longitudinally of the article, and an annular control indicator mounted telescopically on the article and slidable axially relative thereto. The indicia may be accompanied by contrasting designs or markings, to provide quick, accurate and carefully selected voluntary control by the smoker of the extent of consumption of the smoking article. The annular control indicator contrasts visually relative to the smoking article.Type: GrantFiled: June 28, 1976Date of Patent: March 16, 1982Assignee: Irving S. MoserInventor: Irving S. Moser
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Patent number: 4301816Abstract: Filter cigarettes with multiplex filter mouthpieces wherein at least one filtering element constitutes an unwrapped filter plug having a reinforced porous peripheral layer are produced in a machine which is equipped with a perforating device for tubular envelopes connecting the mouthpieces to the respective plain cigarettes, or with a device for making holes in the web of wrapping material which is subdivided into uniting bands. The holes are provided in those portions of tubular envelopes which surround the reinforced porous peripheral layers. Filtering elements which constitute unwrapped filter plugs may be disposed at the free ends of the mouthpieces or adjacent to the plain cigarettes.Type: GrantFiled: January 23, 1979Date of Patent: November 24, 1981Assignee: Hauni-Werke Korber & Co. KGInventors: Gunter Wahle, Heinz Greve, Herbert Berlin
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Patent number: 4295479Abstract: A method and a device for the manufacture of cigars in which each bunch or filler is enveloped in a tobacco leaf portion, wherein the bunches or fillers are advanced one after the other along a given length, whilst a tobacco leaf portion is applied along at least part of said length of path in a stretched form to each advancing filler and wrapped around the same, due to the fact that the bunches or fillers are not stationary during the wrapping operation, but advanced the capacity of an overrolling unit is significantly raised.Type: GrantFiled: November 29, 1978Date of Patent: October 20, 1981Assignee: B.V. Arenco P.M.B.Inventor: Wilhelmus P. L. Boogers
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Patent number: 4296093Abstract: Compositions are disclosed having a physiological cooling action on the skin. The compositions contain, as the active ingredient, alkyl-substituted cyclohexanamides.Type: GrantFiled: February 4, 1980Date of Patent: October 20, 1981Assignee: Wilkinson Sword LimitedInventors: David G. Rowsell, John M. Gascoyne, Roger Hems
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Patent number: RE32615Abstract: A cigarette comprises a tobacco rod of tobacco filler wrapped in a paper wrapper, the circumference of the rod being within a range of 10 mm to 19 mm and the free burn rate of the rod being within a range of 25 to 45 mg min.sup.-1. The cigarette may comprise considerably less tobacco than a cigarette of orthodox circumference yet yield an equal or greater number of puffs.Type: GrantFiled: March 30, 1987Date of Patent: March 1, 1988Assignee: Brown & Williamson Tobacco CorporationInventor: John A. Luke