Filler Penetrating Patents (Class 131/363)
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Patent number: 11871792Abstract: Example embodiments relate to a cartridge including a housing, a pre-vapor formulation reservoir configured to store a pre-vapor formulation in the housing, a vaporizer, and an airflow diverter. The vaporizer may be configured to vaporize the pre-vapor formulation. The vaporizer may include a heater and a wick, the wick may be in fluid communication with the pre-vapor formulation reservoir, and the heater may be configured to vaporize at least a portion of the pre-vapor formulation in the wick to form a vapor. The heater may be positioned in a transverse direction in the housing, and the airflow diverter may be located on an opposite side of the heater relative to a mouth-end portion.Type: GrantFiled: May 25, 2022Date of Patent: January 16, 2024Assignee: ALTRIA CLIENT SERVICES LLCInventor: David Kane
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Patent number: 10258087Abstract: Example embodiments relate to a cartridge including a housing, a pre-vapor formulation reservoir configured to store a pre-vapor formulation in the housing, a vaporizer, and an airflow diverter. The vaporizer may be configured to vaporize the pre-vapor formulation. The vaporizer may include a heater and a wick, the wick may be in fluid communication with the pre-vapor formulation reservoir, and the heater may be configured to vaporize at least a portion of the pre-vapor formulation in the wick to form a vapor. The heater may be positioned in a transverse direction in the housing, and the airflow diverter may be located on an opposite side of the heater relative to a mouth-end portion.Type: GrantFiled: March 10, 2016Date of Patent: April 16, 2019Assignee: Altria Client Services LLCInventor: David Kane
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Patent number: 8267095Abstract: A colored smoke module is disclosed that is mountable to at least a portion of a cigarette or other smoking device. The colored smoke module produces colored smoke when burned. Further, the colored smoke module is user mountable to a cigarette or other smoking device.Type: GrantFiled: November 26, 2008Date of Patent: September 18, 2012Inventor: Gal Markel
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Publication number: 20080185011Abstract: Smoking articles, such as cigarettes and cigarette filters, methods of manufacturing smoking articles including sealed filters, and methods of treating tobacco smoke are provided. In one exemplary embodiment, a smoking article contains sealed filters, wherein additives are sealed within the sealed filters.Type: ApplicationFiled: December 18, 2007Publication date: August 7, 2008Applicant: Philip Morris USA Inc.Inventor: Timothy S. Sherwood
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Patent number: 6883523Abstract: A smoking article includes a cylinder of smoking material, a filter attached to the cylinder of smoking material, and a tube of preferably porous and/or perforated material adapted to collapse at an open end upon exposure to thermal energy and preferably extending from one end portion of the smoking material to the junction of the filter and the cylinder of smoking material. Thermal energy generated by a burning portion of the tobacco filler material within the cylinder of smoking material is transferred by convection through the open portion of the tube after the end portion of the tube has collapsed closed by the heat from the burning portion of the tobacco.Type: GrantFiled: February 14, 2003Date of Patent: April 26, 2005Assignee: Philip Morris USA Inc.Inventor: Henry M. Dante
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Patent number: 6874508Abstract: 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: GrantFiled: April 10, 2003Date of Patent: April 5, 2005Assignee: Philip Morris IncorporatedInventors: Kenneth Shafer, San Li, Milton Parrish, Susan Plunkett
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Patent number: 6868855Abstract: 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: GrantFiled: December 1, 2003Date of Patent: March 22, 2005Assignee: Philip Morris IncorporatedInventors: Kenneth Shafer, San Li, Milton Parrish, Susan Plunkett
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Patent number: 6860273Abstract: A zone or plug of porous adsorbent material, primarily activated carbon, is placed in the tobacco rod of a cigarette a short distance from the lighting end thereof. The amount of activated carbon is sufficient for effective removal of volatile smoke constituents while allowing the cigarette to burn continuously. The activated carbon traps volatile smoke constituents in close proximity to the burning coal in the first puffs of the cigarette. As the cigarette continues to burn, the burning coal consumes the activated carbon. The adsorbed smoke constituents are effectively removed without releasing them back into the mainstream smoke. Following the consumption of the activated carbon in the tobacco rod, the cigarette is unchanged from a cigarette of conventional design.Type: GrantFiled: October 25, 2002Date of Patent: March 1, 2005Assignee: Philip Morris IncorporatedInventor: Charles E. Thomas, Jr.
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Patent number: 6701936Abstract: 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: GrantFiled: May 11, 2001Date of Patent: March 9, 2004Assignee: Philip Morris IncorporatedInventors: Kenneth Shafer, San Li, Milton Parrish, Susan Plunkett
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Patent number: 6637439Abstract: A tobacco smoking mixture is provided that includes tobacco and at least one inorganic particulate material. The at least one inorganic particulate material is effective to reduce the temperature of a burning portion of the tobacco smoking mixture upon combustion/pyrolysis thereof. The at least one inorganic particulate material can be an inorganic carbonate, an inorganic hydrate, an inorganic oxide, an inorganic phosphate, a carbon material or combinations thereof.Type: GrantFiled: August 31, 2001Date of Patent: October 28, 2003Assignee: Philip Morris IncorporatedInventors: Mohammad R. Hajaligol, A. Clifton Lilly, Jr.
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Publication number: 20020000235Abstract: 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: ApplicationFiled: May 11, 2001Publication date: January 3, 2002Inventors: Kenneth Shafer, San Li, Milton Parrish, Susan Plunkett
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Patent number: 5954061Abstract: A device comprising a filter and a rod which is capable of insertion into a cigarette cord that has a preformed conduit extending concentrically along the longitudinal axis of the cord. The rod having a plurality of perforations along its entire length, allowing for a fresh air supply to be sucked into the rod and then intermingled through the tobacco. The filter being available in various numbers of filtering ring elements which allow for a selection of filtering strength. The device is made of materials that would allow it to be reusable. As the cigarette cord burns down, the increased supply of fresh air will result in a reduction in the percentages of particulate matter (tars, nicotine,etc). By varying the number of filters, the taste will selectively be controlled by the user.Type: GrantFiled: October 13, 1998Date of Patent: September 21, 1999Inventor: Venanzio Cardarelli
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Patent number: 5830318Abstract: The present invention is directed to a tipping paper adapted for wrapping a filter of a smoking article. The tipping paper contains a pigment made from calcium carbonate particles having a median size of between about 0.1 microns to about 0.5 microns. The calcium carbonate pigment can be used to create a tipping paper having an opacity of up to at least 89%. In comparison to conventional tipping papers, it has been surprisingly discovered that the tipping paper of the present invention reduces knife wear of a cutting instrument used to cut the paper and is less retentive to solvents when the paper is printed with a solvent based ink or covered with a solvent based coating.Type: GrantFiled: October 25, 1996Date of Patent: November 3, 1998Assignee: Schweitzer-Mauduit International, Inc.Inventors: Larry Snow, Kerry Mahone, Italo Baccoli
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Patent number: 5135009Abstract: The present invention relates to a smokable article which is intended to permit the smoker to avoid the condensates usually present in the smoke while retaining the taste experience familiar from conventional cigarettes; this is achieved in that a sheet-like carrier element coated with an aroma-carrying material and having a low thermal capacity is brought into direct thermal contact with a heat source comprising a hollow cylindrical combustion element having at least one passage therethrough wherein said passage is separate and distinct from the hollow portion; in the pauses between draws a cavity serves as collecting container or reservoir for the aromatic substances developed which can be inhaled in the next draw by the smoker.Type: GrantFiled: March 9, 1990Date of Patent: August 4, 1992Assignee: B.A.T. Cigarettenfabriken GmbHInventors: Bernd-Henrik Muller, Wolfgang Wiethaup, Guillermo Gerding, Bernhard Hauser, Knut Moller, Gert Rudolph
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Patent number: 4984588Abstract: A smoking article (10) is disclosed, in which a tube (12) of combustible, heat fusible material is surrounded by tobacco filler (14) and wrapper (16). Tube (12) extends from approximately 5 mm from the mouth end of the filter to within approximately 10 mm of the opposite end of smoking cylinder (17). By directing essentially unfiltered, undiluted smoke to the smoker during the initial puffs, tube (12) gives the impression of a stronger flavored cigarette. After the first several puffs, the tube (12) is melted shut and normal dilution occurs.Type: GrantFiled: September 14, 1981Date of Patent: January 15, 1991Assignee: Philip Morris IncorporatedInventor: Lawrence L. Stewart, Jr.
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Patent number: 4972856Abstract: A filter applicable to a cigarette and fitted therein by a user includes an elongated part fitted in a mouth provided in a cigarette and a flange which seals the cigarette mouth when the elongated part is inserted thereinto.Type: GrantFiled: April 16, 1986Date of Patent: November 27, 1990Inventor: Nazzaro Sergio
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Patent number: 4924886Abstract: A smoking device includes a tobacco column having a wrapper and either a mouthpiece or filter rod located coaxially at one end of the tobacco column. A rigid tube is concentrically located in the tobacco column. A substrate of porous material is located within the tube. A flavor releasing material and an aerosol generating material are also disposed within the tube. A smoke impermeable seal is located at the interface of the tobacco column and the mouthpiece/filter.Type: GrantFiled: November 21, 1988Date of Patent: May 15, 1990Assignee: Brown & Williamson Tobacco CorporationInventor: Elmer F. Litzinger
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Patent number: 4637409Abstract: An improved tobacco smoke filter is characterized by longitudinally continuous grooves running from end-to-end in the peripheral surface of a smoke-impervious filter plug wrap. Smoke-impervious tipping surrounds the plug wrap to seal the grooves except for small ventilation holes in the tipping which permit communication between the grooves and the ambient air. In a preferred embodiment, the grooves are restricted toward the mouth end of the filter and the degree of restriction determines the direction of air and smoke flow in the grooves. The grooves are each preferably formed as two longitudinal sections of different cross-section. Apparatus and method for manufacturing the filter are disclosed.Type: GrantFiled: May 7, 1981Date of Patent: January 20, 1987Assignee: American Filtrona CorporationInventor: Richard M. Berger
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Patent number: 4595024Abstract: A cigarette, having a tobacco rod consisting of at least two segments. The segment toward the filter end of the tobacco rod has a density at least 20% greater than the fire-end segment. The density differential may be combined with a nicotine differential, such that the fire-end segment has a higher nicotine content than does the filter-end segment. This configuration alters the nicotine delivery of the invention, providing a nicotine delivery either uniform during the last half of the cigarette or at levels reduced from those seen during the first few puffs.Type: GrantFiled: August 31, 1984Date of Patent: June 17, 1986Assignee: R. J. Reynolds Tobacco CompanyInventors: Tammie B. Greene, David E. Townsend, Thomas A. Perfetti
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Patent number: 4457319Abstract: A filter for a cigarette which includes a centrally disposed generally conical baffle at the mouth end thereof with its conically shaped wall diverging in the general direction of the flow of smoke through the filter to divert the smoke exiting from the center of the filter when in use. The baffle is substantially impervious to smoke and forces the smoke leaving the filter in a direction generally angularly outward from the periphery of the filter. Ventilating air grooves can also be provided in the filter to direct ventilating air at the mouth end of the filter to provide mixing of the exiting smoke and ventilating air at the mouth end of the filter.Type: GrantFiled: June 22, 1982Date of Patent: July 3, 1984Assignee: Brown & Williamson Tobacco CorporationInventors: Charles G. Lamb, Harry S. Porenski
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Patent number: 4434804Abstract: Smoking articles, e.g. cigarettes, are disclosed into the fuel rod of which particulate smoke-modifying agent has been introduced in such a manner that the concentration of the agent is greater at one or each end of the fuel rod than that at the middle region of the fuel rod. The result of this variation in concentration of the smoke-modifying agent is that the amount of agent released into the smoke varies as the article is smoked. Various forms of smoking article are disclosed together with methods of production.Type: GrantFiled: June 9, 1981Date of Patent: March 6, 1984Assignee: Imperial Group LimitedInventors: Anthony J. N. Bolt, Brian C. Chard
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Patent number: 4424819Abstract: 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: GrantFiled: March 31, 1982Date of Patent: January 10, 1984Assignee: Brown & Williamson Tobacco CorporationInventors: Donald A. Silberstein, Andrew McMurtrie
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Patent number: 4362172Abstract: 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: GrantFiled: December 1, 1980Date of Patent: December 7, 1982Assignee: Brown & Williamson Tobacco CorporationInventor: Robert R. Johnson
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Patent number: 4331166Abstract: 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: GrantFiled: May 2, 1980Date of Patent: May 25, 1982Assignee: Philip Morris, IncorporatedInventor: Robert W. Hale