Patents by Inventor Warren A. Brackmann
Warren A. Brackmann 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).
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Patent number: 5267578Abstract: Fibrous materials are opened from a metered flow thereof using an opening roller and are subjected to a controlled and adjustable further opening operation to input desirable properties to the fibers. The invention is particularly described with respect to cut tobacco fibers and glass fibers.Type: GrantFiled: September 4, 1991Date of Patent: December 7, 1993Assignee: Rothmans, Benson & Hedges Inc.Inventors: Warren A. Brackmann, Stanislav M. Snaidr, Takeshi Nehyo, Michael H. Sheahan
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Patent number: 5190061Abstract: A novel cigarette smoke filter element is provided which achieves an increased removal of tar from cigarette smoke while retaining a higher flavor level than is achieved using conventional filter materials. The filter comprises an elongate cylinder of microfine fibers which is closed at the upstream end of the filter element and tobacco smoke filter material located both externally and internally of the cylinder of microfine fibers. A tobacco smoke flow path blocking means is provided at the downstream end of the filter element to permit filtered tobacco smoke to pass from the filter element only from the tobacco smoke filter material located internally of the cylinder of microfine fibers.Type: GrantFiled: April 19, 1991Date of Patent: March 2, 1993Assignees: Rothmans, Benson & Hedges Inc., Rothmans International Services LimitedInventors: Warren A. Brackmann, Tow P. Liew
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Patent number: 5105830Abstract: Individual assembly of cigarettes from cut tobacco and preformed cigarette paper tubes is facilitated by providing charges of cut tobacco in cartridges. An extension in the form of a hollow tube is provided at one end of the cartridge to enable the sheath enclosing the tobacco to be removed and the tobacco discharged into the paper tube. Specific equipment to effect the assembly also is described.Type: GrantFiled: March 2, 1990Date of Patent: April 21, 1992Assignee: Rothmans, Benson & Hedges Inc.Inventors: Warren A. Brackmann, Kenneth P. Davidson, Hans Klotz, Michael H. Sheahan, Stanislav M. Snaidr
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Patent number: 5080112Abstract: Fibrous materials are opened from a metered flow thereof using an opening roller and are subjected to a controlled and adjustable further opening operation to input desirable properties to the fibers. The invention is particularly described with respect to cut tobacco fibers and glass fibers.Type: GrantFiled: July 24, 1990Date of Patent: January 14, 1992Assignees: Rothmans, Benson & Hedges Inc., Rothmans International Services LimitedInventors: Warren A. Brackmann, Stanislav M. Snaidr, Takeshi Nehyo, Michael H. Sheahan
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Patent number: 4972853Abstract: A cigarette filter rod element including an axially extending barrier tube of micro-fine fibres with a diameter of between 0.5 and 10 microns and located so that at least part of the gas flow passes through the wall of said barrier tube.Type: GrantFiled: October 12, 1989Date of Patent: November 27, 1990Assignee: SK Hand Tool CorporationInventors: Warren A. Brackmann, Tow P. Liew
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Patent number: 4967770Abstract: Degradation of tobacco brought about by refuser and recycle procedures in conventional cigarette-making machine operations is eliminated by feeding, metering and opening tobacco from a reservoir directly onto the external surface of a rotary or rectilinear transportation device which conveys the tobacco to rod formation. Specific modifications to the Molins Mark IX and Hauni Protos cigarette-making machines are described.Type: GrantFiled: May 26, 1989Date of Patent: November 6, 1990Assignees: Rothmans, Benson & Hedges Inc., Rothmans International Services LimitedInventors: Warren A. Brackmann, Stanislav M. Snaidr, Takeshi Nehyo, Michael H. Sheahan
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Patent number: 4953570Abstract: Degradation of tobacco brought about by refuser and recycle procedure in conventional cigarette-making machine operations is eliminated by feeding, metering and opening tobacco from a reservoir directly onto the external surface of a rotary or rectilinear transportation device which conveys the tobacco to rod formation. Specific modifications to the Molins Mark IX and Hauni Protos cigarette-making machines are described.Type: GrantFiled: May 26, 1989Date of Patent: September 4, 1990Assignees: Rothmans, Benson & Hedges Inc., Rothmans International Services LimitedInventors: Warren A. Brackmann, Stanislav M. Snaidr, Takeshi Nehyo, Michael H. Sheahan
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Patent number: 4896681Abstract: A cigarette filler rod-forming method and apparatus therefor are described for production of a filler rod containing two different blends of tobacco, so as to provide to a cigarette formed from the filler rod more uniform smoking characteristics. Discrete bunches of tobacco of a first blend are formed by employing a vacuum wheel having a belt which forms chords of a circle, so that, after trimming, the bunches have a flat surface adjacent the belt and a curved outer surface. Spaces between the bunches are filled with tobacco of another blend at least to the maximum height of the bunches of the first blend of tobacco, by a variety of procedures.Type: GrantFiled: August 11, 1988Date of Patent: January 30, 1990Assignees: Rothmans, Benson & Hedges Inc., Rothmans International Services LimitedInventors: Warren A. Brackmann, Takeshi Nehyo, Michael H. Sheahan, Stanislav M. Snaidr
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Patent number: 4867180Abstract: Degradation of tobacco brought about by refuser and recycle procedures in conventional cigarette-making machine operations is eliminated by feeding, metering and opening tobacco from a reservoir directly onto the external surface of a rotary or rectilinear transportation device which conveys the tobacco to rod formation. Specific modifications to the Molins Mark IX and Hauni Protos cigarette-making machines are described.Type: GrantFiled: May 4, 1988Date of Patent: September 19, 1989Assignees: Rothmans, Benson & Hedges Inc., Rothmans International Services LimitedInventors: Warren A. Brackmann, Stanislav M. Snaidr, Takeshi Nehyo, Michael H. Sheahan
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Patent number: 4793367Abstract: A novel cigarette structure is provided which permits a cigarette of lower tar to be provided without impairing the flavor. Strips of more highly-flavored tobacco are provided on opposite sides and sandwich a layer of lesser-flavored tobacco between them.Type: GrantFiled: November 26, 1986Date of Patent: December 27, 1988Assignee: Rothmans of Pall Mall Canada LimitedInventor: Warren A. Brackmann
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Patent number: 4787401Abstract: A novel cigarette structure is provided which produces an approximately uniform delivery of flavour along its length as the cigarette is smoked. The filler rod of the cigarette has a strip of more highly-flavoured tobacco to one side or to two sides of the rod, with the remainder of the cross-section of the rod being formed of lower flavoured tobacco, and has a higher proportion of the more highly-flavoured tobacco than the lower flavour tobacco at the lighting end. The cigarette filler rod of improved smoking characteristics may be formed by a simplified assembly procedure.Type: GrantFiled: November 26, 1986Date of Patent: November 29, 1988Assignee: Rothmans of Pall Mall LimitedInventor: Warren A. Brackmann
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Patent number: 4754765Abstract: The quality of a tobacco filler rod as formed in cigarette-making machines is improved. The improvement is achieved by by-passing all the metering and refusing mechanisms of a conventional cigarette-making machine and providing a wide carpet of opened tobacco particles directly to the filler rod-forming procedure.Type: GrantFiled: May 14, 1986Date of Patent: July 5, 1988Assignee: Rothmans of Pall Mall LimitedInventors: Warren A. Brackmann, Stanislav M. Snaidr, Takeshi Nehyo, Michael H. Sheahan
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Patent number: 4716913Abstract: An improved composite cigarette comprising a core of lesser quality tobacco smoking material surrounded by an annulus of higher quality tobacco smoking material is described. The improvement resides in the provision of an increased quantity of the annulus material at the lighting end of the cigarette, so as to increase the initial flavor impact and thereby provide more uniform smoke taste characteristics along the length of the cigarette.Type: GrantFiled: May 13, 1986Date of Patent: January 5, 1988Assignee: Rothmans of Pall Mall LimitedInventor: Warren A. Brackmann
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Patent number: 4627447Abstract: Winnowing of shredded tobacco stem material, or other particulate tobacco material, is effected by metering the shredded stem material from a reservoir and then picking the metered flow to open and separate the particles one from another. The resulting stream of separated individual particles of shredded tobacco stem material is projected into an upwardly-flowing air stream to entrain a desired lighter fraction of the particles and carry it out of the separator device. The undesired heavy fraction falls in the separator device and is collected. The collected heavy fraction preferably is reprocessed to separate agglomerates of shredded stem material present in the heavy fraction into individual particles, which are then entrained in a second upwardly-flowing air stream which subsequently joins up with the first gas stream.Type: GrantFiled: December 14, 1983Date of Patent: December 9, 1986Assignee: Rothmans of Pall Mall Canada LimitedInventors: Warren A. Brackmann, Stanislav M. Snaidr
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Patent number: 4567903Abstract: Tobacco feed material suitable for cigarette formation is formed by blending shredded tobacco stem material and shredded tobacco lamina material while in partially-dried form and drying the blend to the final moisture content.Type: GrantFiled: November 9, 1982Date of Patent: February 4, 1986Assignee: Rothmans of Pall Mall Canada LimitedInventors: Warren A. Brackmann, Stanislav M. Snaidr
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Patent number: 4566470Abstract: Tobacco leaf is processed into a form suitable for use in the manufacture of cigarettes by first cutting the leaf into strips, air classifying the strips into a lamina fraction and a stem fraction, threshing the stem fraction to separate lamina associated with the stem, and cutting the lamina strips and the separated lamina into shreds. The stem also may be processed for blending with the lamina shreds.Type: GrantFiled: October 27, 1983Date of Patent: January 28, 1986Assignee: Rothmans of Pall Mall Canada LimitedInventor: Warren A. Brackmann
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Patent number: 4557278Abstract: Shredded tobacco lamina material and shredded stem material are mixed for use in cigarette making. A coarse intermixture of the materials first is formed and the mixture is metered and opened to form individual particles. The individual particles then are intermixed to form aggregates containing both lamina and stem material.Type: GrantFiled: February 23, 1983Date of Patent: December 10, 1985Assignee: Rothmans of Pall Mall Canada LimitedInventors: Warren A. Brackmann, Stanislav M. Snaidr
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Patent number: 4512353Abstract: Drying of tobacco particles in heated rotary drum drier is improved by flowing air through the drum at a flow rate, usually at least 10 ft./sec. (3.25 m/sec), which imparts translational or linear motion to the particles. The translational motion causes the particles to become classified based on size and weight and thereby to cause smaller particles to pass through the drum at a faster rate than larger particles. In this way, smaller particles are less exposed to the drying heat than larger ones, so that overdrying of small particles is avoided and overall filling power is improved.Type: GrantFiled: February 16, 1983Date of Patent: April 23, 1985Assignee: Rothmans of Pall Mall Canada LimitedInventor: Warren A. Brackmann
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Patent number: 4459999Abstract: A novel tobacco feed device (10) and method of use thereof for the direct feed of tobacco to rod formation in a cigarette making machine are described. The device (10) includes a reservoir tube (42) containing a reservoir of opened cut tobacco, metering rolls (54) to meter required amounts of cut tobacco from the reservoir tube (42) to discharge metered tobacco to the cigarette maker. Internal hoppers, carding drums and picker wheels are avoided by the structure of the invention giving rise to greatly enhanced tobacco filling power.Type: GrantFiled: October 22, 1981Date of Patent: July 17, 1984Assignee: Rothmans of Pall Mall Canada LimitedInventors: Warren A. Brackmann, Karel Hrboticky
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Patent number: 4458698Abstract: A tobacco metering, conveying and separating system (10) is provided for feeding cut tobacco from a source thereof (12) to a cigarette-making machine at a substantially lower rate, with consequential decrease in tobacco degradation than in conventional systems. A continuous air flow is used in the conveyor pipe (32) and a rotary air lock (50) is used to discharge tobacco from the tobacco-air separator (34).Type: GrantFiled: July 14, 1980Date of Patent: July 10, 1984Assignee: Rothmans of Pall Mall Canada LimitedInventor: Warren A. Brackmann