Patents by Inventor William F. Cartwright

William F. Cartwright has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5955187
    Abstract: A self-regulating breathable microporous film layer transmits water vapor at normal use conditions, and reduces or eliminates the vapor transmission when the vapor in the environment becomes excessive. The film layer includes a voided polymer matrix and a plurality of fine water-swellable filler particles disposed within the voids. When there is an excess of vapor, the filler particles swell to block or partially block transmission of vapor through the voids and the film layer.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: September 21, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Ann Louise McCormack, David Craige Strack, Jay Sheldon Shultz, William F. Cartwright, Carol A. Blaney
  • Patent number: 5386838
    Abstract: A high surface area oxidative catalyst smoke suppressive composition, smoke suppressive articles, and method of making such compositions and articles are disclosed. The smoke suppressive composition is a solid solution comprising a mixture of iron (Fe) and magnesium (Mg) that promotes efficient combustion, articles treated with such compositions, and methods for making such smoke suppressive compositions and articles. The smoke suppressive composition is made by co-precipitating Fe and Mg from an aqueous solution in the presence of a base. The iron-magnesium composition demonstrates high surface area and efficient combustion for embodiments having iron in an amount from approximately 3 mol % to approximately 30 mol % and magnesium in an amount from approximately 97 mol % to approximately 70 mol %. The compositions provide superior smoke suppression for items such as cigarettes and smoke suppressive articles.
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: February 7, 1995
    Assignee: Kimberly-Clark Corporation
    Inventors: Roger B. Quincy, III, William F. Cartwright
  • Patent number: 5284166
    Abstract: There is disclosed a method of coloring cigarette paper. Cigarette paper is made by forming a furnish, adding at least one colorant to the furnish, forming a sheet of paper from the thus treated furnish, and adding at least one colorant to the paper to produce a variety of tans/browns and red-brown cigarette wrapper.
    Type: Grant
    Filed: October 7, 1992
    Date of Patent: February 8, 1994
    Assignee: Kimberly-Clark Corporation
    Inventors: William F. Cartwright, Sean M. Kelly, David P. Pozzetta
  • Patent number: 5170807
    Abstract: There is disclosed a method of producing a non-burning wrapper for use with smoking products. A non-burning wrapper is formed by treating a base paper with a solution consisting essentially of water, calcium chloride and a reactive size for paper; drying the thus treated paper; coating one side of the thus treated base paper with a solution consisting essentially of water, calcium carbonate, potassium silicate and sodium carboxymethycellulose; and drying the thus treated and coated paper to form a non-burning wrapper for use with smoking products.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: December 15, 1992
    Assignee: Kimberly Clark Corporation
    Inventors: Loyd G. Kasbo, Peter E. Brighenti, William F. Cartwright, Carmen P. DiGrigoli, Benji D. Morgan
  • Patent number: 5144967
    Abstract: A flavor release material and method for producing the same where the material contains a calculated amount of active surface agent and flavorant adsorbed onto the active surface agent. The flavor release material is capable of controllably releasing flavor and aroma when exposed to a predetermined elevated temperature.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: September 8, 1992
    Assignee: Kimberly-Clark Corporation
    Inventors: William F. Cartwright, Carmen P. DiGrigoli, Loyd G. Kasbo
  • Patent number: 5105837
    Abstract: A wrapper for use in smoking articles such as cigarettes, and in particular, to a wrapper for smoking articles having a heat source, a physically separate aerosol generating means, and a mouthend piece. More specifically the invention relates to smoking articles which employ a substantially non-burnable paper used as an innerwrap and/or outerwrap which encircles at least a portion of the fuel element of such smoking articles.
    Type: Grant
    Filed: August 28, 1990
    Date of Patent: April 21, 1992
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: Russell D. Barnes, Kelly K. Hutchison, Carmen P. Digrigoli, Loyd G. Kasbo, Peter E. Brighenti, William F. Cartwright, Benjidawn Morgan
  • Patent number: 5060674
    Abstract: Sheet material containing sodium carboxymethyl cellulose especially useful in forming wrappers for smokeable articles such as cigarettes that results in reduced sidestream smoke. The sheet is preferably formed by incorporating as a filler in a cellulosic web an amount of high superficial surface area filler in the range generally of from about 5 to 50 percent by weight in the finished sheet. The cellulosic material may be flax fiber or other natural cellulosic fibers conventionally used for such wrappers. Additional fillers may be used up to a total of about 50 percent, and, preferably, a burn modifier, carboxylic acid salt, preferably a nonhydroxy acid salt such as succinic acid salt is included in an amount of 4 to 15 percent by weight. The sheet can be formed by any conventional papermaking method.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: October 29, 1991
    Assignee: Kimberly-Clark Corporation
    Inventors: J. Page Brown, William F. Cartwright, Larry D. Snow
  • Patent number: 4961415
    Abstract: Nonwoven web comprising thermoplastic meltblown fibers or filaments predominantly present as agglomerates or multiple fused fiber areas. Such agglomerates in the web act as columns and impart a desired degree of strength and resistance to compaction. In contrast to prior art webs where such agglomerates have been considered undesirable, the webs of the present invention find particular utility when formed into cylinders as filter plugs for smoking articles. In smoking articles of the invention, the filter plugs have a desired pressure drop while demonstrating an unexpected degree of firmness, all at an economically attractive cost. Preferred embodiments include those where the machine direction strength to cross machine direction grab tensile ratios in the range of from about 1:1 to 4:1 and the fibers or filaments are made from polypropylene. Other embodiments include webs and filter plugs containing additives distributed throughout the web.
    Type: Grant
    Filed: January 16, 1987
    Date of Patent: October 9, 1990
    Assignee: Kimberly-Clark Corporation
    Inventors: Fred R. Radwanski, Donald F. Durocher, Leon E. Chambers, Jr., Loyd G. Kasbo, William F. Cartwright, Robert G. Geer, Edward P. Bullwinkel
  • Patent number: 4903714
    Abstract: 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: Grant
    Filed: August 25, 1987
    Date of Patent: February 27, 1990
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: 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
  • Patent number: 4542755
    Abstract: An improved method of making reconstituted tobacco using a dry-forming process. Fiberized tobacco stems and scrap are combined with tobacco material of a fine particle size. The resulting tobacco mixture is conveyed in an airstream and deposited on a moving foraminous surface. An adhesive is incorporated into or applied to the web bonding the tobacco particles into a coherent sheet, and the sheet is dried if necessary. The dried sheet may be divided into leaflets or shredded for further processing as reconstituted tobacco. In preferred embodiments, cellulose fibers are mixed with the tobacco particles prior to web formation to impart increased sheet strength. In a further embodiment tobacco fines are mixed with the adhesive and applied to the web in the adhesive composition. Results obtained by means of the present invention include cost savings particularly in terms of reduced capital costs.
    Type: Grant
    Filed: May 25, 1984
    Date of Patent: September 24, 1985
    Assignee: Kimberly-Clark Corporation
    Inventors: William A. Selke, William F. Cartwright
  • Patent number: 4452257
    Abstract: A treatment system for natural leaf tobacco wrapper is provided for comprising in combination:(a) a humectant/plasticizer component;(b) a preservative component;(c) a solvent carrier selected from the group comprising water and water/alcohol mixtures; and(d) optionally, a polymeric film-forming component selected from the group comprising synthetic gums, natural gums and protein film-forming compositions.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: June 5, 1984
    Assignee: Consolidated Cigar Corp.
    Inventors: William F. Cartwright, Alan Cornell
  • Patent number: 4243053
    Abstract: A filter cigar is provided having outer layers of cigar wrapper and binder material each spirally wrapped about a preformed cigar filter and tobacco filler charge. A reinforcement strip including layers of high wet strength reinforcing tape and bonded to the binder is circumferentially wrapped over the interface between the filter and the filler charge.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: January 6, 1981
    Assignee: Gulf & Western Company
    Inventors: William F. Cartwright, Alan Cornell, D. Bernard Higgins, Robert P. Mikkelson
  • Patent number: 4052993
    Abstract: Cinnamic derivatives, especially the methyl or ethyl ethers of cinnamyl alcohol, para-methoxycinnamyl alcohol, and para-ethoxycinnamyl alcohol, are added to tobacco to improve the flavor and aroma of the tobacco and tobacco smoke.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: October 11, 1977
    Assignee: Liggett & Myers Incorporated
    Inventors: William F. Cartwright, Richard E. Means, Andrew G. Kallianos, J. Bowen Ross, Jr.
  • Patent number: 3943943
    Abstract: Cinnamic derivatives, especially the methyl or ethyl ethers of cinnamyl alcohol, para-methoxycinnamyl alcohol, and para-ethoxycinnamyl alcohol, are added to tobacco to improve the flavor and aroma of the tobacco and tobacco smoke.
    Type: Grant
    Filed: July 9, 1974
    Date of Patent: March 16, 1976
    Assignee: Liggett & Myers Incorporated
    Inventors: William F. Cartwright, Richard E. Means, Andrew G. Kallianos