• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A filter for a cigarette includes a porous filter rod circumscribed by a porous or air permeable 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 wall of each of the grooves defined by the wrapper is impermeable to air and smoke while at least a portion of the remaining area of the wrapper is air permeable. An air permeable tipping material circumscribes the wrapped filter rod which provides a path for ventilating air flow into the filter rod and a path for air flow into the grooves. Due to the air impermeable wall of the grooves, the air flowing in the grooves is segregated from the air and smoke flowing through the filter rod so that ventilating air is the only substance flowing in the grooves. The air flowing through the tipping material into the filter rod co-mingles with and dilutes the smoke flowing through the filter rod before it reaches the smoker's mouth.
    公开号:SU1382393A3
    申请号:SU833558780
    申请日:1983-02-14
    公开日:1988-03-15
    发明作者:Грэнвиль Лэмб Чарлз
    申请人:Браун Энд Вилльямсон Тобэккоу Корпорейшн (Фирма)；
    IPC主号:
    专利说明:


    cm
    F (g.Z.
    one
    The invention relates to cigarette filters having grooves for directing the flow of venting air to the end of the filter,
    The aim of the invention is to reduce the amount of harmful substances contained in the smoke when smoking a cigarette.
    FIG. 1 shows a filter with a mouthpiece removed; in fig. the same, end view; on fig.Z - a cigarette with a filter shown in figure 1, with a partially unfolded mouth piece material.
    The filter contains a cylindrical filter rod 1 enclosed in a wrapper 2, extending along the filter rod from one end to another and having canaks 3 located along the filter, at a distance shorter than its length, and open at the oral end of the filter, strip 4 is breathable muncheon paper to connect the filter with the tobacco rod 5. Part of the wrapper, located in the grooves, is made airtight, while the grooves 3 are equidistant from each other. The remainder of the wrapper 2 located on the surface of the filter rod is air-permeable.
    The filter rod 1 is made of a porous material, for example, fibrous or foamed acetyl lulose, or any other material suitable for filtering cigarette smoke. In the production of the filter, the wrapper 2 can be molded as a unit with the filter rod or it can be a separate element. The wrapped filter rod 1 is placed in a mold or other treatment.


    pressing tool wrap-. through the holes 6 in the grooves 3 and the check 2 in selected locations,. pressing the wrapper into the filter rod and forming the grooves 3. Such a method used in the manufacture of cigarettes is called a heat mold method. The depressed portions of the wrapper 2 defining the walls of the grooves 3 are machined so that the voids are sealed and the walls of the grooves become airtight. For this purpose, for example, heating of a wrapping material is used to effect heat sealing of the porous material. Another type of treatment is coating50.
    55
    cutting the holes 7 into the filter rod 1 through the air-permeable areas of the wrapper 2. The ventilating air entering the grooves 3 passes to the open end of the grooves at the oral end of the filter without shifting to the smoke passing through the filter rod due to the air tightness of the walls of the grooves , falls into the mouth of the cone. The ventilating air entering the filter rod through the holes 7 is displaced and the smoke passing through the filter rod from the tobacco rod 5 is diluted.
    The depressed portions of the wrapper defining the walls of the grooves 3, for example, a water-insoluble solution or material, such as ethyl cellulose, or a water-soluble material, such as rhodium carboxymethylcellulose or methyl cellulose, which cross the pores. The wrapped filter rod 1 is attached to the tobacco rod 5 by a strip 4 of tipping material that encloses the filter rod 1 covered with a wrapper 2 to form a filter cigarette. Lane 4 is breathable so that the ventilating air will flow through it and enter the grooves 3 and into the filter rod 1 through the air-permeable areas of the wrapper 2 lying outside the grooves 3. For this purpose, the strip A has holes 6 and 7 for the ventilating air. According to FIG. 3, the openings 6 communicate with the grooves 3, and the openings 7 lie above the air-permeable regions of the wrapper 2 outside the grooves 3 to allow the ventilation air to enter the filter rod 1.
    The holes 6, located along the first ring around the wrapped filter rod, communicate with the grooves 3 near their closed ends, i.e. the ends of the grooves opposite the open ends facing the mouth of the smoker. The holes 7 formed along the second ring are located above the air-permeable peripheral area of the wrapper 2 upstream with respect to the flow of smoke through the filter from the closed ends of the grooves 3.
    When the smoker pulls in, the ventilating air is simultaneously drawn in.
    through the holes 6 into the grooves 3 and
    cutting the holes 7 into the filter rod 1 through the air-permeable areas of the wrapper 2. The ventilating air entering the grooves 3 passes to the open end of the grooves at the oral end of the filter without shifting with the smoke passing through the filter rod due to the air tightness of the walls of the grooves, gets into the mouth of a smoker. The ventilating air entering the filter rod through the holes 7 is displaced and dilutes the smoke passing through the filter rod from the tobacco rod 5.
    Thus, diluting the smoke with ventilating air both in the filter itself and in the mouth of the smoker reduces the amount of tar in the smoke, which reduces the content of harmful substances.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    A cigarette filter containing a cylindrical porous filter rod enclosed in a wrapper extending along the filter rod from one end to the other and having at least one
    a groove located along the filter at a distance shorter than its length and open at the oral end of the filter and a band of breathable tipping paper for connecting the filter with a tobacco rod, characterized in that in order to reduce the amount of harmful substances contained in the smoke while smoking a cigar -. You, the part of the wrapper located in the grooves, are air-tight, and the rest of the wrapper, which is located on the surface of the filter rod, is air-permeable.
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    类似技术:
    公开号 | 公开日 | 专利标题
    SU1382393A3|1988-03-15|Cigarette filter
    SU1184430A3|1985-10-07|Filter for cigarettes
    SE8106834L|1982-05-29|CIGARETTE FILTER
    EA007110B1|2006-06-30|Ventilated smoking article
    SE8401632D0|1984-03-23|VENTILATED Cigarette filter and smoke distributing nozzle
    SU1213971A3|1986-02-23|Cigarette filter
    DK153280B|1988-07-04|CIGARETTE FILTER
    JP2573529B2|1997-01-22|Cigarette filter
    SE8300824L|1983-08-17|Cigarette filters
    JP2549938Y2|1997-10-08|Cigarette filter
    US4424819A|1984-01-10|Cigarette filter
    RU2044508C1|1995-09-27|Cigarette filter
    CA1192468A|1985-08-27|Smoke filters
    IE53814B1|1989-03-01|Cigarette filter
    同族专利:
    公开号 | 公开日
    FI70367B|1986-03-27|
    ZA83720B|1983-11-30|
    GB2164539B|1986-09-03|
    FI830440A0|1983-02-08|
    FI830440L|1983-08-17|
    FI70367C|1986-09-19|
    TR21601A|1984-11-14|
    PH20476A|1987-01-16|
    ATA35883A|1986-10-15|
    ZW3183A1|1983-04-27|
    DK64983D0|1983-02-15|
    DE3304763A1|1983-08-25|
    DK64983A|1983-08-17|
    HU188426B|1986-04-28|
    SE457687B|1989-01-23|
    IE830133L|1983-08-16|
    EG16133A|1991-12-30|
    ES519839A0|1984-03-01|
    BE895872A|1983-05-30|
    ES8402709A1|1984-03-01|
    IL67833A|1985-08-30|
    BG40475A3|1986-12-15|
    KR840003400A|1984-09-08|
    SE8300823L|1983-08-17|
    CS247161B2|1986-12-18|
    DK158370C|1990-10-08|
    GB2164539A|1986-03-26|
    PL138923B1|1986-11-29|
    FR2521405A1|1983-08-19|
    IE53813B1|1989-03-01|
    NZ203130A|1985-05-31|
    IN155856B|1985-03-16|
    JPS58155071A|1983-09-14|
    PL240609A1|1983-09-26|
    CA1188951A|1985-06-18|
    NL8300504A|1983-09-16|
    YU43151B|1989-04-30|
    LU84637A1|1983-09-08|
    IT1161903B|1987-03-18|
    KR870001749B1|1987-10-06|
    NO155033B|1986-10-27|
    FR2521405B1|1985-11-22|
    YU34483A|1985-10-31|
    MX155853A|1988-05-11|
    SE8300823D0|1983-02-15|
    GB2117219A|1983-10-12|
    RO88319B|1985-12-31|
    BR8300641A|1983-11-08|
    RO88319A|1985-12-30|
    IL67833D0|1983-06-15|
    NO155033C|1987-02-04|
    AU1081683A|1983-08-25|
    JPS6149938B2|1986-10-31|
    DK158370B|1990-05-14|
    AU537829B2|1984-07-12|
    IT8319593D0|1983-02-15|
    CH658775A5|1986-12-15|
    NO830508L|1983-08-17|
    GB8302959D0|1983-03-09|
    GB2117219B|1986-09-24|
    GB8527367D0|1985-12-11|
    US4406294A|1983-09-27|
    GR81381B|1984-12-11|
    AT383016B|1987-05-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2504309C2|2008-01-23|2014-01-20|Филтрона Интернэшнл Лимитед|Tobacco smoking filter|
    RU2520878C2|2008-12-01|2014-06-27|Бритиш Америкэн ТобэккоЛимитед|Smoking product filter|
    US8955524B2|2007-08-03|2015-02-17|British American TobaccoLimited|Filter and method for making a filter for a cigarette|
    US9066542B2|2008-05-30|2015-06-30|British American TobaccoLimited|Filter for a smoking article|
    RU2573956C2|2010-03-26|2016-01-27|Филип Моррис Продактс С.А.|Cigarette filter with variable ventilation|
    RU2579705C2|2010-05-25|2016-04-10|Филтрона Филтер Продактс Девелопмент Ко. Пти. Лтд.|Tobacco smoke filter|
    RU2588694C2|2008-11-10|2016-07-10|Бритиш Америкэн ТобэккоГмбх|Multi-filter for a smoking product|US3490461A|1967-04-20|1970-01-20|Philip Morris Inc|Cigarette ventilation|
    US3607512A|1969-01-03|1971-09-21|Philip Morris Inc|Extruding tow filled mouthpiece rod having serrated inner surfaces clenching the tow|
    US3596663A|1969-05-29|1971-08-03|Lorillard Co P|Ventilated smoking article|
    US3910288A|1973-02-27|1975-10-07|Brown & Williamson Tobacco|Programmed filter|
    US4022221A|1975-10-31|1977-05-10|American Filtrona Corporation|Tobacco smoke filter|
    GB1508084A|1976-03-17|1978-04-19|British American Tobacco Co|Tobacco-smoke filters|
    DE2734643C2|1976-10-13|1989-04-06|Koerber Ag, 2050 Hamburg, De|
    US4174719A|1977-06-29|1979-11-20|Olin Corporation|Microperforated filter tip cigarette|
    US4256122A|1979-04-11|1981-03-17|Brown & Williamson Tobacco Corporation|Cigarette filter|
    US4498488A|1981-03-12|1985-02-12|Brown & Williamson Tobacco Corporation|Cigarette filter|
    US4343319A|1980-11-28|1982-08-10|Brown & Williamson Tobacco Corporation|Cigarette filter|
    US4338956A|1980-12-05|1982-07-13|Brown & Williamson Tobacco Corporation|Cigarette filter|
    US4342322A|1980-12-22|1982-08-03|Brown & Williamson Tobacco Corporation|Cigarette filter|
    JPS6149938A|1984-08-17|1986-03-12|Matsushita Electric Ind Co Ltd|Automatic grilling appliance|US4515170A|1983-05-09|1985-05-07|Brown & Williamson Tobacco Corporation|Ventilated mouthpiece for a smoking article|
    US4542754A|1983-12-05|1985-09-24|Brown & Williamson Tobacco Corporation|Filtered cigarette|
    GB8415972D0|1984-06-22|1984-07-25|British American Tobacco Co|Smoking article mouthpiece elements|
    US4582072A|1984-06-25|1986-04-15|Brown & Williamson Tobacco Corporation|Cigarette filter|
    US4649943A|1985-02-11|1987-03-17|Brown & Williamson Tobacco Corporation|Cigarette filter and method of making the same|
    US4708150A|1986-08-25|1987-11-24|Brown & Williamson Tobacco Corporation|Cigarette filter|
    US5178166A|1990-09-20|1993-01-12|Philip Morris Incorporated|Filter cigarette|
    AT341234T|2001-12-18|2006-10-15|Bat Cigarettenfab Gmbh|FILTER FOR A SMOKING ARTICLE|
    CN1748591A|2005-11-07|2006-03-22|夏侯晓雷|Filter tip|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/349,103|US4406294A|1982-02-16|1982-02-16|Cigarette filter|LV920091A| LV5030A3|1982-02-16|1992-08-10|Cigarette filter|
    LTRP148A| LT2010B|1982-02-16|1992-08-28|CYCLE FILTER|
    MD94-0012A| MD9C2|1982-02-16|1993-12-14|Cigar filter|
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