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1. 发明授权

US3919369A Method of manufacturing a self-contained low pressure drop filter 失效
标题翻译：制造独立低压降滤波器的方法
公开(公告)号：US3919369A
公开(公告)日：1975-11-11
申请号：US30993272
申请日：1972-11-27
申请人： AMERICAN FILTRONA CORP
发明人： HOLDEN HERBERT K
IPC分类号： A61L9/03 , B01D39/20 , B01J20/28 , F24F13/28 , B29D27/00
CPC分类号： B01J20/2803 , A61L9/03 , B01D39/2062 , B01D2239/0478 , B01D2239/086 , B01D2239/1208 , B01D2239/1216 , B01J20/28026 , B01J20/28042 , F24F13/28
摘要： A bonded activated carbon filter and a method for making the same are disclosed. The filter contains activated carbon and a thermosetting or thermoplastic resin binder, and is a selfcontained disposable filter having voids in sufficient amount to provide a pressure drop of about 0 to 0.5 inches of water at a face velocity of up to approximately 450 feet per minute. The method includes mixing the dry ingredients and sufficient water, charging to a mold, applying sufficient pressure, discharging the green mold piece and curing the resulting filter. By the use of granular activated carbon a larger filled face area/void ratio may be provided for certain applications since the granular material provides some permeability through the filled face area while the voids permit control of the pressure drop characteristics of the filter.
摘要翻译：公开了粘结活性炭过滤器及其制造方法。过滤器包含活性炭和热固性或热塑性树脂粘合剂，并且是具有足够量的空隙的自包含的一次性过滤器，以高达约450英尺/分钟的表面速度提供约0至0.5英寸水的压降。该方法包括混合干成分和足够的水，向模具充电，施加足够的压力，排出生坯模具并固化所得的过滤器。通过使用颗粒活性炭，可以为某些应用提供更大的填充面积/空隙率，因为颗粒材料通过填充的面部区域提供一些渗透性，而空隙允许控制过滤器的压降特性。

2. 发明授权

US3811451A Tobacco smoke filter 失效
标题翻译：烟草烟雾过滤器
公开(公告)号：US3811451A
公开(公告)日：1974-05-21
申请号：US28780372
申请日：1972-09-11
申请人： AMERICAN FILTRONA CORP
发明人： BERGER R
IPC分类号： A24D3/02 , A24D1/04
CPC分类号： A24D3/0225
摘要： A method and apparatus for making tobacco smoke filter means having totally enclosed inner cavities surrounded completely by the filtering material. Selected cavities may be filled with a sorbent smoke-modifying additive or the like in order to provide both gas phase filtration and solid phase filtration to the resultant product. Filter rods are manufactured by utilizing a reciprocating mandrel which is timed to the movement of a filtering material, such as a continuous cellulose acetate filamentary tow, through processing stations, particularly a steam-treating bonding station, with an annular wall of smokepermeable bonded fibrous members of the filtering material being formed when the mandrel is in its forward-most position extending at least to the point where the bonding agent contacts the filtering material. At the rearward-most portion of the stroke of the mandrel the filtering material is permitted to extended transversely completely across the bonding zone before being contacted with the steam so as to form a smoke-permeable plug of filtering material before and after the annular wall portions, thereby defining the internal cavities. Selected cavities may be partially or completely filled with an additive passing through the mandrel which can be hollow, as the mandrel is withdrawn during its rearward stroke.
摘要翻译：一种用于制造烟草烟雾过滤器的方法和装置，其具有由过滤材料完全包围的完全封闭的内腔。所选择的空腔可以填充有吸附剂烟气改性添加剂等，以便为所得产物提供气相过滤和固相过滤。过滤杆通过利用往复式心轴来制造，所述往复式心轴与过滤材料（例如连续的醋酸纤维素纤维丝束）一起运动，通过处理站，特别是蒸汽处理粘合站，具有透气粘合的环形壁当心轴处于其最前端位置时至少延伸至粘合剂与过滤材料接触的点时，过滤材料的纤维构件形成。在心轴的行程的最后部分，过滤材料在与蒸汽接触之前允许横向穿过结合区域延伸，以在环形壁部分之前和之后形成过滤材料的透气塞，从而限定内腔。所选择的空腔可以部分地或完全地填充通过心轴的添加剂，该添加剂可以是中空的，因为心轴在其向后冲程期间被抽出。

3. 发明授权

US3611678A Activated carbon filter 失效
标题翻译：活性碳过滤器
公开(公告)号：US3611678A
公开(公告)日：1971-10-12
申请号：US3611678D
申请日：1968-10-03
申请人： AMERICAN FILTRONA CORP
发明人： HOLDEN HERBERT K
IPC分类号： B01D39/20 , C01B32/384 , B01D53/04
CPC分类号： B01D39/2062 , B01D2239/0407 , B01D2239/086 , B01D2239/1208 , B01D2239/1241 , C01B32/384
摘要： A BONDED CHARCOAL FILTER AND A METHOD FOR MAKING THE SAME ARE DISCLOSED. THE FILTER CONTAINS FINE POWDERED ACTIVATED CHARCOAL AND A THERMOSETTING OR THERMOPLASTIC RESIN BINDER, AND IS A SELF-CONTAINED DISPOSABLE FILTER HAVING VOIDS IN SUFFICIENT AMOUNT TO PROVIDE A PRESSURE DROP OF ABOUT 0 TO ABOUT 0.5 INCH OF WATER AT A FACE VELOCITY OF UP TO APPROXIMATELY 450 FEET PER MINUTE. THE METHOD INCLUDES MIXING THE DRY INGREDIENTS AND SUFFICIENT WATER,

CHARGING TO A MOLD, APPLYING SUFFICIENT PRESSURE, AND CURING THE RESULTING FILTER.

4. 发明授权

US3318317A Activated carbon smoke filter 失效
标题翻译：活性炭烟过滤器
公开(公告)号：US3318317A
公开(公告)日：1967-05-09
申请号：US36923664
申请日：1964-05-21
申请人： AMERICAN FILTRONA CORP
发明人： SPROULL REAVIS C , BERGER RICHARD M
IPC分类号： A24D3/16
CPC分类号： A24D3/163

5. 发明授权

US3752166A Tobacco smoke filter 失效
标题翻译：烟草烟雾过滤器
公开(公告)号：US3752166A
公开(公告)日：1973-08-14
申请号：US3752166D
申请日：1970-12-24
申请人： AMERICAN FILTRONA CORP
发明人： LYON H , MATHEWSON H , WILLIAMSON J , BYRNE S
IPC分类号： A24C5/14 , A24D3/02 , A24D1/04 , A24F7/04
CPC分类号： A24D3/0283
摘要： A tobacco smoke filter, particularly for use with cigarettes, has a high filtration efficiency and novel construction, at least one end of the filter having an appearance similar to conventional filters comprising cylinders packed with crimped filaments or creped paper. The filter comprises a tube within which is a rod having an outer wall of filtering material and an inner part of supporting material. At one end the rod has the same cross sectional shape as the tube and is in engagement with the tube around its periphery, at the other end or between the ends, its cross sectional shape changes so that opposed surfaces of the filtering material engage each other, so that tobacco smoke drawn through the filter is constrained to pass through the wall of filtering material. The filter has a high efficiency at an acceptable pressure drop.
摘要翻译：特别是用于香烟的烟草烟雾过滤器具有高过滤效率和新颖的结构，过滤器的至少一端的外观与常规过滤器的外观相似，包括装有卷曲丝或褶皱纸的滚筒。过滤器包括管，其中具有过滤材料的外壁和支撑材料的内部的杆。杆的一端具有与管相同的横截面形状，并且与管周围，在另一端或两端之间与管接合，其截面形状发生变化，使得过滤材料的相对表面彼此接合，使得通过过滤器抽出的烟草烟雾被限制穿过过滤材料的壁。过滤器在可接受的压降下具有高效率。

6. 发明授权

US3648711A Tobacco smoke filter 失效
标题翻译：烟草烟雾过滤器
公开(公告)号：US3648711A
公开(公告)日：1972-03-14
申请号：US3648711D
申请日：1970-08-11
申请人： AMERICAN FILTRONA CORP
发明人： BERGER RICHARD M , BROOKS ELWIN W
IPC分类号： A24D3/02
CPC分类号： A24D3/0283
摘要： Filter means of a type which is constructed to provide elongated, high surface area, cavities defined on opposite sides of a relatively thin wall formed of filtering material with only the ends of the filter means contacting an overwrapped outer tube thereby presenting maximum available surface area of the material from which the products are formed to the smoke for filtration. The filter comprises an outer elongated member in which an inner crimped filter is disposed. The latter has major portions of the outer surface spaced from the inner surface of the outer member to define a cavity means therebetween. A further cavity means is defined interiorly of the inner member, the smoke being compelled to pass through both cavity means, with at least one of the cavities being filled with a sorbent filtering material. Bonded activated carbon is disclosed as the preferred sorbent material.
摘要翻译：一种类型的过滤装置，其被构造成在由过滤材料形成的相对薄的壁的相对侧上提供细长的高表面积的空腔，只有过滤装置的端部与外包裹的外管接触，从而呈现出最大的可用表面积将产品从其形成的材料与烟雾进行过滤。过滤器包括外部细长构件，其中设置内部压接过滤器。后者具有与外部构件的内表面间隔开的外表面的主要部分，以在它们之间限定空腔装置。另外的空腔装置被限定在内部构件的内部，烟被迫使其通过两个空腔装置，其中至少一个空腔填充有吸附剂过滤材料。公开了粘结的活性炭作为优选的吸附剂材料。

7. 发明授权

US3552400A Filter plug of staple fiber filter elements and the like 失效
标题翻译：过滤器插头的纤维过滤器元件和类似物
公开(公告)号：US3552400A
公开(公告)日：1971-01-05
申请号：US64461467
申请日：1967-06-08
申请人： AMERICAN FILTRONA CORP
发明人： BERGER RICHARD M , SPROULL REAVIS C
IPC分类号： A24D3/02 , D01D10/04 , D01G1/00
CPC分类号： D01G1/00 , A24D3/0208 , D01D10/049
摘要： The production of a filter plug comprising staple fiber smoke filter elements and the like directly from a continuous filamentary tow. The plug comprises filamentary staple fibers and has an AFC hardness in excess of 180 and a density of less than 0.120 grams per cubic centimeter. The filter plugs have functional and physical characteristics comparable to prior art filter elements, but require 20-30 percent less material. The filter elements can be supplemented by various additive materials.

8. 发明授权

US3313665A Method for making fibrous bodies 失效
标题翻译：制造纤维体的方法
公开(公告)号：US3313665A
公开(公告)日：1967-04-11
申请号：US56128866
申请日：1966-06-28
申请人： AMERICAN FILTRONA CORP
发明人： BERGER RICHARD M
IPC分类号： A24D3/02 , D04H1/54 , D04H3/14 , D04H3/16
CPC分类号： D04H1/54 , A24D3/022 , D04H3/14 , D04H3/16

9. 发明授权

US3217715A Smoke filter and smoking devices formed therewith 失效
标题翻译：烟雾过滤器和与之形成的吸烟装置
公开(公告)号：US3217715A
公开(公告)日：1965-11-16
申请号：US45805065
申请日：1965-05-24
申请人： AMERICAN FILTRONA CORP
发明人： BERGER RICHARD M , SPROULL REAVIS C
IPC分类号： A24D3/08 , A24D3/16
CPC分类号： A24D3/163 , A24D3/08

10. 发明授权

US3847064A Tobacco smoke filter 失效
标题翻译：烟草烟雾过滤器
公开(公告)号：US3847064A
公开(公告)日：1974-11-12
申请号：US43422374
申请日：1974-01-17
申请人： AMERICAN FILTRONA CORP
发明人： BERGER R
IPC分类号： A24D3/02 , A24C5/50
CPC分类号： A24D3/0225
摘要： A method and apparatus for making tobacco smoke filter means having totally enclosed inner cavities surrounded completely by the filtering material. Selected cavities may be filled with a sorbent smoke-modifying additive or the like in order to provide both gas phase filtration and solid phase filtration to the resultant product. Filter rods are manufactured by utilizing a reciprocating mandrel which is timed to the movement of a filtering material, such as a continuous cellulose acetate filamentary tow, through processing stations, particularly a steam-treating bonding station, with an annular wall of smokepermeable bonded fibrous members of the filtering material being formed when the mandrel is in its forward-most position extending at least to the point where the bonding agent contacts the filtering material. At the rearward-most portion of the stroke of the mandrel the filtering material is permitted to extend transversely completely across the bonding zone before being contacted with the steam so as to form a smoke-permeable plug of filtering material before and after the annular wall portions, thereby defining the internal cavities. Selected cavities may be partially or completely filled with an additive passing through the mandrel which can be hollow, as the mandrel is withdrawn during its rearward stroke.
摘要翻译：一种用于制造烟草烟雾过滤器的方法和装置，其具有由过滤材料完全包围的完全封闭的内腔。所选择的空腔可以填充有吸附剂烟气改性添加剂等，以便为所得产物提供气相过滤和固相过滤。过滤杆通过利用往复式心轴来制造，所述往复式心轴与过滤材料（例如连续的醋酸纤维素纤维丝束）一起运动，通过处理站，特别是蒸汽处理粘合站，具有透气粘合的环形壁当心轴处于其最前端位置时至少延伸至粘合剂与过滤材料接触的点时，过滤材料的纤维构件形成。在心轴的行程的最后部分，允许过滤材料在与蒸汽接触之前横向穿过结合区域延伸，以在环形壁部分之前和之后形成过滤材料的透气塞，从而限定内腔。所选择的空腔可以部分地或完全地填充通过心轴的添加剂，该添加剂可以是中空的，因为心轴在其向后冲程期间被抽出。

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