Patents Assigned to Liggett & Myers Incorporated
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Patent number: 4088065Abstract: This invention relates to a cigarette filter composed of two concentric cylindrical layers of fibrous filter materials, in which the inner cylindrical layer has a lower draw resistance than the outer cylindrical layer, and a method and apparatus for the manufacture thereof.Type: GrantFiled: April 25, 1977Date of Patent: May 9, 1978Assignee: Liggett & Myers IncorporatedInventor: Floyd V. Hall
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Patent number: 4055191Abstract: The amount of polycyclic aromatic hydrocarbons in tobacco smoke is reduced and a substantially diminished biological activity of the tobacco smoke condensate when evaluated on experimental animals following conventional protocol is achieved by adding to the tobacco palladium, either in metallic or salt form, and an inorganic nitric oxide generating compound.Type: GrantFiled: October 3, 1975Date of Patent: October 25, 1977Assignee: Liggett & Myers IncorporatedInventors: Vello Norman, Herman G. Bryant, Jr.
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Patent number: 4052993Abstract: 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: GrantFiled: December 15, 1975Date of Patent: October 11, 1977Assignee: Liggett & Myers IncorporatedInventors: William F. Cartwright, Richard E. Means, Andrew G. Kallianos, J. Bowen Ross, Jr.
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Patent number: 4034765Abstract: This invention relates to a cigarette filter composed of two concentric cylindrical layers of fibrous filter materials, in which the inner cylindrical layer has a lower draw resistance than the outer cylindrical layer.Type: GrantFiled: October 30, 1975Date of Patent: July 12, 1977Assignee: Liggett & Myers IncorporatedInventor: Floyd Van Hall
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Patent number: 4024012Abstract: The apparatus is constructed to produce a hollow filter rod. The apparatus includes a mandrel through which a supplied length of tubing is passed, a nozzle surrounding the mandrel for shaping a stream of fibrous filter material about the mandrel and a forming means for enveloping a web of paper about the fibrous filter material and the tubing to produce the filter rod. The mandrel can be adjusted relative to the forming means to ensure an accurate centering of the tubing within the filter rod.The hollow filter includes a rigid non-deformable tube defining a smoke passage having a draw resistance to control the amount of unfiltered smoke, a concentric layer of filter material and a perforated outer wrap for passage of air into the layer of filter material.Type: GrantFiled: July 16, 1975Date of Patent: May 17, 1977Assignee: Liggett & Myers IncorporatedInventor: Ned A. Sigmon
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Patent number: 4023576Abstract: The cigarette mouthpiece is made of one-piece construction in which two semi-cylindrical shells are hinged together along one edge and are releaseably secured together at the free edges. The mouthpiece has an internal cylindrical smoke chamber which is separated from a tobacco column at one end by a baffle means while the opposite end of the smoke chamber is defined by a pair of abutting walls which are each slotted to define an orifice. The orifice is of a predetermined diameter less than the diameter of the smoke passage to control the amount of smoke flowing out of the smoke passage for a given draw. The exterior surface of the mouthpiece is provided with longitudinal grooves which cooperate with an overlying perforated tipping paper to define flow paths for ventilation air. For a given draw, an amount of undiluted unfiltered smoke is drawn from the tobacco column into the smoke chamber and through the outlet orifice.Type: GrantFiled: July 11, 1975Date of Patent: May 17, 1977Assignee: Liggett & Myers IncorporatedInventor: Vello Norman
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Patent number: 3976085Abstract: The first conveyor is inclined to move the cigarettes from the cigarette making machine upwardly in single line fashion to the second conveyor which conveys the cigarettes horizontally in stacked fashion into the hopper of the cigarette packaging machine. The packaging machine is linked in a one-to-one relationship with the cigarette making machine and is capable of high speed production of at least 3600 cigarettes per minute.Type: GrantFiled: September 26, 1974Date of Patent: August 24, 1976Assignee: Liggett & Myers, IncorporatedInventor: Floyd Vameda Hall
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Patent number: 3949107Abstract: A method of forming a bright-drying floor finish on a resilient flooring comprising applying a polish containing an aqueous dispersion of fine particles of a resin with a Tg of 30.degree. to 80.degree.C to a flooring, preferably a resilient flooring, with at least one of said polish or said flooring having been preheated to a temperature above the glass transition (Tg) temperature of said resin, and drying said polish to produce said bright-drying floor finish.Type: GrantFiled: May 31, 1974Date of Patent: April 6, 1976Assignee: Liggett & Myers IncorporatedInventors: Daniel Schoenholz, Herbert Terry
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Patent number: 3943943Abstract: 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: GrantFiled: July 9, 1974Date of Patent: March 16, 1976Assignee: Liggett & Myers IncorporatedInventors: William F. Cartwright, Richard E. Means, Andrew G. Kallianos