Patents Assigned to R. J. Reynolds Tobacco
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Patent number: 4927647Abstract: A flexible laminate film for packaging hygroscopic products, including foods, is disclosed in which the packaged contents do not adhere or stick to the inner surface of the package. The inner layer of the package laminate provides the anti-stick characteristic of the package and comprises a polystyrene foam.Type: GrantFiled: November 23, 1988Date of Patent: May 22, 1990Assignee: R. J. Reynolds Tobacco CompanyInventor: Jennifer A. Bailey
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Patent number: 4924888Abstract: Cigarettes having low efficiency filters, rods of cut filler having a low packing density, and paper wraps having a high net permeabilities and low inherent permeabilities can yield good taste, low gas phase mainstream deliveries as well as low amounts of visible sidestream smoke. Typical cigarettes have relatively large amounts of volume expanded flue-cured tobacco materials as cut filler, paper wraps containing magnesium oxide and/or magnesium hydroxide, and relatively high levels of air dilution.Type: GrantFiled: May 15, 1987Date of Patent: May 15, 1990Assignee: R. J. Reynolds Tobacco CompanyInventors: Thomas A. Perfetti, Alan B. Norman, Michael F. Dube
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Patent number: 4924887Abstract: Tobacco containing cigarette filter plugs comprise strands of tobacco material which are bound with an activated binding agent. The filter plugs exhibit good firmnless and integrity, and provide cigarettes exhibiting a unique tobacco taste. Filter plugs are prepared by forming an intimate admixture of tobacco material and binding agent, forming rods and activating the binding agent.Type: GrantFiled: February 3, 1986Date of Patent: May 15, 1990Assignee: R. J. Reynolds Tobacco CompanyInventors: Mark L. Raker, Andrew J. Sensabaugh, Jr., Stephen W. Jakob
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Patent number: 4924883Abstract: A cigarette-type smoking article has a short tobacco-containing fuel element, a passageway for mainstream tobacco smoke flow, a flavor source which provides enhanced flavor to the tobacco smoke which passes therethrough, and a mouthend piece. The article is highly air diluted and the air dilution is provided through the periphery of the article as perforations in a region immediately behind the fuel element. Such an article delivers highly flavored mainstream tobacco smoke and relatively low levels of pyrolysis and/or combustion derived wet total particulate matter.Type: GrantFiled: March 6, 1987Date of Patent: May 15, 1990Assignee: R. J. Reynolds Tobacco CompanyInventors: Thomas A. Perfetti, Amos E. Westmoreland
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Patent number: 4922901Abstract: Drug delivery articles employ an electrical resistance heating element and an electrical power source to provide a dose of a drug in aerosol form. The articles advantageously comprise a disposable portion and a reusable controller. The disposable portion, normally includes a drug and an air permeable resistance heating element having a surface area greater than 1 m.sup.2 /g, which usually carries an aerosol forming material. The reusable controller normally includes a puff-actuated current actuation means, a time-based current regulating means to control the temperature of the heating element, and a battery power supply.Type: GrantFiled: September 8, 1988Date of Patent: May 8, 1990Assignee: R. J. Reynolds Tobacco CompanyInventors: Johnny L. Brooks, Donald L. Roberts, Jerry S. Simmons
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Patent number: 4922933Abstract: The constituents of a compacted tobacco mass can be easily separated by subjecting the mass to electromagnetic radiation in the radio frequency range.Type: GrantFiled: February 13, 1987Date of Patent: May 8, 1990Assignee: R. J. Reynolds Tobacco CompanyInventor: Stephen W. Jakob
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Patent number: 4922932Abstract: A tobacco feeder assembly utilizes a column of tobacco and a rotary conveyor to feed tobacco particles to a treatment zone which is maintained at above atmospheric pressure. The column of tobacco is maintained in the feed tube by control of the rotational speed of the rotary conveyor and provides an effective vapor barrier which prevents egress of the impregnating or treatment medium into the atmosphere.Type: GrantFiled: June 8, 1988Date of Patent: May 8, 1990Assignee: R. J. Reynolds Tobacco CompanyInventors: E. Lee Williams, Jr., J. Sam Thomasson
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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: 4917119Abstract: A drug delivery article provides a dose of a volatilized drug by heating a drug 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 the drug in a heat exchange relationship therewith. The drug volatilizes and is drawn into the mouth of the user of the article. Typical heat sources heat the drug to a temperature within 70.degree. C. to 200.degree. C. for 4 to 8 minutes.Type: GrantFiled: November 30, 1988Date of Patent: April 17, 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: 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: 4914966Abstract: Apparatus for performing analysis of a slurry including solid particles of elements in a liquid suspension has a container for receiving a sample of the slurry to be analyzed, and a conveyor for moving the container to a location at which the analysis is to be performed. A sampling probe is to be introduced into the slurry sample to perform the analysis. A separate probe is adapted to ultrasonically agitate the slurry sample to keep the solid particles in suspension. The agitating probe is automatically introduced into and withdrawn from the container in synchronism with the movement of the container into the desired location and immediately prior to the introduction of the sampling probe into the slurry sample.Type: GrantFiled: December 15, 1988Date of Patent: April 10, 1990Assignee: R. J. Reynolds Tobacco CompanyInventors: Ralph T. White, Jr., Dewey L. Holt, Jerry S. Simmons
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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: 4911302Abstract: The instant invention relates to processes for producing tamper-evident overwrapped packages as well as the products which are produced. These processes utilize various energizing sources to create tamper-evident patterns between the package surface and the underside of the clear overwrap film closure. Tamper-evident patterns can also be created between heat-sealed overlapping sections of the overwrap film.Type: GrantFiled: March 13, 1989Date of Patent: March 27, 1990Assignee: R. J. Reynolds Tobacco CompanyInventor: John P. Butler
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Patent number: 4903714Abstract: The present invention relates to smoking articles having an improved mouthend piece. More specifically, it relates to cigarette-type smoking articles comprising a fuel element, a physically separate aerosol generating means including an aerosol forming material, and means for delivering the aerosol produced by the aerosol generating means to the user in the form of a mouthend piece, the mouthend piece including a nonwoven web segment formed from meltblown thermoplastic fibers or filaments, and a spacer member located between the aerosol generating means and the non woven web segment.Type: GrantFiled: August 25, 1987Date of Patent: February 27, 1990Assignee: R. J. Reynolds Tobacco CompanyInventors: Russell D. Barnes, Gary R. Shelar, Edward P. Bullwinkel, William F. Cartwright, Leon E. Chambers, Jr., Donald F. Durocher, Robert G. Geer, Loyd G. Kasbo, Fred R. Radwanski
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Patent number: 4903844Abstract: A cigarette carton structure having a releasable adhesive seal to permit reopening of a temporarily sealed carton without damage to the carton. The seal includes a release coating on one of two carton surfaces to be adhesively joined. One of the surfaces may be a top flap and the other surface may be a closure flap. An adhesive is placed on the release coating, and the two surfaces are joined. The release coating may be a weakly cohesive material such as a metallic ink printed on the carton surface so that when the surfaces are separated, the release coating separates without damaging the carton. Alternatively the release surface can be a layer of material that adheres poorly to the adhesive, so that the adhesive readily separates from the release layer. In either case the initial temporary bonding must be sufficiently strong to allow handling, packing and unpacking of the cartons without premature opening.Type: GrantFiled: December 29, 1988Date of Patent: February 27, 1990Assignee: R. J. Reynolds Tobacco CompanyInventor: Robert L. Oglesby
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Patent number: 4899765Abstract: Cigarette rods are manufactured at high rates of speed using a cigarette making machine having a tongue which is equipped such that water is continuously fed therethrough in order to exit the surface of the tongue which contacts a tobacco filter stream passing through the garniture region of the cigarette making machine. The process of introducing water through the tongue during a cigarette making operation allows the manufacturer to produce a continuous cigarette rod of controlled integrity. For example, cigarettes of controlled density and firmness, and having very low amounts of hard spots, soft spots and loose ends, can be manufactured. The process provides for the manufacture of cigarettes at high speeds, and for the manufacture of cigarettes having high filling capacity tobacco blends. For example, cigarettes having blends comprising relatively high levels of volume expanded tobacco can be manufactured efficiently and effectively.Type: GrantFiled: July 19, 1988Date of Patent: February 13, 1990Assignee: R. J. Reynolds Tobacco CompanyInventors: James W. Davis, Philip A. Deal, Travis B. Howard, Clifford R. Marritt
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Patent number: 4898188Abstract: Flue-cured tobacco can be treated with burley tobacco flavor components and subjected to volume expansion conditions. Flavor components are supercritically extracted from burley tabacco and directly applied to the flue-cured tobacco while the extraction fluid is in a supercritical or subcritical state.Type: GrantFiled: February 24, 1988Date of Patent: February 6, 1990Assignee: R. J. Reynolds Tobacco CompanyInventors: Benjamin F. Niven, Jr., Charles D. Mays
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Patent number: 4895174Abstract: A tobacco particles separator utilizes turbulent air flow, flow vortices, and a random spread matrix in an air circulation path to separate and singularize tobacco particles. A moving porous web is used to receive and to hold the separated particles which may be retained on the porous web for subsequent analysis.Type: GrantFiled: May 19, 1988Date of Patent: January 23, 1990Assignee: R. J. Reynolds Tobacco CompanyInventors: Calvin W. Henderson, Stephen C. Jens, Malcolm E. Taylor
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Patent number: 4893639Abstract: The present invention is directed to densified particulate materials and to a process of preparing such materials.The present invention is also related to cigarette-type smoking articles utilizing the densified particulate materials of the present invention as an extender of the fuel and/or as a flavor enhancer.In cigarette-type smoking articles, the densified particulate material of the present invention may also serve as a substrate or carrier for an aerosol forming substance. The use of densified particulate tobacco, in whole or in part, as such a substrate affords many advantages heretofore unavailable in cigarette-type smoking articles.The use of the densified particulate materials of the present invention in conventional tobacco products, e.g., cigarettes, cigars, pipe tobacco, and the like, affords advantages heretofore unavailable. Preferably, a mixture of densified carbon and densified tobacco is used, both as an extender/filler and as a flavor enhancer.Type: GrantFiled: July 22, 1986Date of Patent: January 16, 1990Assignee: R. J. Reynolds Tobacco CompanyInventor: Jackie L. White
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Patent number: 4893637Abstract: Apparatus and methods are described for forming a composite member for use in making a smoking article. The apparatus comprises a forming device that comprises (a) an elongate structure having a curved inner surface that tapers from a larger proximal end to a smaller distal end, the proximal end of the structure being adapted to receive a support member and a layer of material which are fed simultaneously into the device, the tapering inward curved inner surface causing the edges of the fibrous layer to bend around the inner support member, and (b) a curved forming surface that causes a first edge of the material to fold over the support member while permitting the second edge to pass by the forming surface, the curved inner surface of the device further tapering to the distal end causing the second edge of the material to fold over the support member proximate to the first edge.Type: GrantFiled: September 15, 1987Date of Patent: January 16, 1990Assignee: R. J. Reynolds Tobacco Co.Inventors: Lloyd H. Hancock, Jesse A. Stigall, Donald R. Wilkinson