Patents Represented by Attorney Marta E. Gross
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Patent number: 5263999Abstract: This invention relates to the control of the burn rate of a cigarette. The burn rate is controlled by the use of a paper wrapper to which regions of cellulosic material is applied and bonded. The cellulosic material is applied during a manufacturing step for the base paper wrapper, either off or on-line of the paper wrapper-forming machine.Type: GrantFiled: September 10, 1991Date of Patent: November 23, 1993Assignee: Philip Morris IncorporatedInventors: Sheryl D. Baldwin, Navin Gautam, Kenneth S. Houghton, Robert M. Rogers, Judith L. Ryder
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Patent number: 5263500Abstract: A paper wrapper for a cigarette is prepared using fine particle size calcium carbonate as the mineral filler for the purpose of burn rate, puff count and tar delivery control.Type: GrantFiled: April 12, 1991Date of Patent: November 23, 1993Assignee: Philip Morris IncorporatedInventors: Sheryl D. Baldwin, Rowland W. Dwyer, Deborah J. Newman, Barton Floyd, Robert M. Rogers, Edward B. Sanders, Barbro L. Goodman
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Patent number: 5247949Abstract: This invention relates to a heat source comprising metal carbide and a method for preparing the same using a reducing/carbidizing atmosphere. The metal carbide heat sources of this invention have ignition temperatures that are substantially lower than conventional carbon particles normally used in carbonaceous heat sources, while at the same time provide sufficient heat to release a flavored aerosol from a flavor bed for inhalation by the smoker. Upon combustion, the heat sources produce substantially no carbon monoxide.Type: GrantFiled: January 9, 1991Date of Patent: September 28, 1993Assignee: Philip Morris IncorporatedInventors: Seetharama C. Deevi, Mohammad R. Hajaligol, Donald B. Losee, Jr.
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Patent number: 5246018Abstract: This invention relates to improved methods for making a composite heat source comprising carbon and metal species. The composite heat source made by the methods of this invention have ignition temperatures that are substantially lower than carbonaceous heat sources, while at the same time provide sufficient heat to release a flavored aerosol from a flavor bed for inhalation by the smoker. Upon combustion, the heat source produces substantially no carbon monoxide. The metal species may be prepared by mixing a metal oxide, metal and a carbon source, pre-forming the metal oxide/metal/carbon source mixture into a shape and converting the mixture to metal species in situ, without substantially altering the original shape of the mixture.Type: GrantFiled: July 19, 1991Date of Patent: September 21, 1993Assignee: Philip Morris IncorporatedInventors: Seetharama C. Deevi, Sarojini Deevi, Mohammad R. Hajaligol, Harry V. Lanzillotti, Arnys C. Lilly, Jr., D. Bruce Losee, Michael L. Watkins
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Patent number: 5240014Abstract: An improved carbonaceous heat source suitable for use in a smoking article is provided. The heat source is formed by mixing a carbon component, a catalytic precursor and a binder, forming the mixture into a shape, and supplying heat to the mixture. Upon combustion of the heat source, the catalytic precursor forms a catalyst that converts carbon monoxide produced during combustion of the heat source into a benign substance.Type: GrantFiled: July 20, 1990Date of Patent: August 31, 1993Assignee: Philip Morris IncorporatedInventors: Seetharama C. Deevi, Mohammad R. Hajaligol, Diane S. Kellogg, Bruce E. Waymack
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Patent number: 5240016Abstract: A flavor source to be used as a thermally releasable flavorant for smoking articles that do not combust tobacco. The flavor source includes tobacco particles, an aerosol precursor that forms an aerosol upon exposure to heat, and a gelling agent that imparts sufficient structural framework for rigidity to the flavor source. The material is mixed, extruded through a die, and cut into the shape of a one-piece flavor source. The flavor source is loaded into a chamber for inclusion in a smoking article as a flavor generator.Type: GrantFiled: April 19, 1991Date of Patent: August 31, 1993Assignee: Philip Morris IncorporatedInventors: Walter A. Nichols, Pamela D. Lieberman, Mary E. Toerne
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Patent number: 5188130Abstract: A chemical heat source comprising metal nitride, metal oxide and carbon, particularly useful in smoking articles, and methods of making the heat source are provided. The metal nitride of the heat source has an ignition temperature substantially lower than conventional carbonaceous heat sources, while at the same time provides sufficient heat to release a flavored aerosol from a flavor bed for inhalation by the smoker. Upon combustion the heat source produces virtually no carbon monoxide. The metal nitride is prepared by pre-forming the starting materials into a desired shape, and converting them to metal nitride in situ, without substantially altering the shape of the starting materials.Type: GrantFiled: November 29, 1989Date of Patent: February 23, 1993Assignee: Philip Morris, IncorporatedInventors: Mohammad R. Hajaligol, Seetharama C. Deevi, Sarojini D. Ariprala, Donald B. Losee, Bruce E. Waymack, Michael L. Watkins
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Patent number: 5168884Abstract: The calcium carbonate filler level or the basis weight of a paper wrapper for a smoking article is varied to enable the designing of smoking articles with specific characteristics including a specific puff count, tar delivery and carbon monoxide delivery.Type: GrantFiled: April 12, 1991Date of Patent: December 8, 1992Assignee: Philip Morris IncorporatedInventors: Sheryl D. Baldwin, Edward B. Sanders, James L. Myracle, Barbro L. Goodman, Cynthia W. Arterbery, Willard A. Geiszler, Barton Floyd, Warren E. Claflin
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Patent number: 5146934Abstract: This invention relates to a heat source comprising a mixture of metal carbide, metal nitride and metal which undergo a staged ignition process, particularly useful in smoking articles. The metal carbide/metal nitride/metal mixtures making up the heat source have ignition temperatures that are substantially lower than conventional carbonaceous heat sources, while at the same time provide sufficient heat to release a flavored aerosol from a flavor bed for inhalation by the smoker. Upon combustion the heat source produces substantially no carbon monoxide or nitrogen oxides.Type: GrantFiled: May 13, 1991Date of Patent: September 15, 1992Assignee: Philip Morris IncorporatedInventors: Seetharama C. Deevi, Sarojini Deevi, Mohammad R. Hajaligol, Kenneth S. Houghton
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Patent number: 5040552Abstract: An iron carbide heat source, particularly useful in smoking articles, is provided. The iron carbide particles making up the heat source have ignition temperatures that are substantially lower than conventional carbon particles normally used in carbonaceous heat sources, while at the same time provide sufficient heat to release a flavored aerosol from a flavor bed for inhalation by the smoker. In a preferred embodiment, the iron carbide heat source of this invention is substantially cylindrical in shape and has one or more fluid passages therethrough. Upon combustion, the heat source produces substantially no carbon monoxide.Type: GrantFiled: December 8, 1988Date of Patent: August 20, 1991Assignee: Philip Morris IncorporatedInventors: Donald M. Schleich, Yunchang Zhang
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Patent number: D346878Type: GrantFiled: March 25, 1991Date of Patent: May 10, 1994Assignee: Philip Morris IncorporatedInventors: Edward S. Gee, A. Clifton Lilly, D. Bruce Losee, James L. Myracle, Jr., Jerry F. Whidby, Francis V. Utsch, Constance H. Morgan, F. Murphy Sprinkel