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| Number | Title | Issue Date |
| 7691043 | Method and apparatus for making cigarette filters with a centrally located flavored element A filter making apparatus includes a positioning device having a passageway therethrough, with the passageway guiding a continuous flavor element such as a continuous strand of textile material from an inlet of the passageway to an outlet of the passageway. A liquid... | 04/06/2010 |
| 7318797 | Continuous rod machine arrangement for producing nonwoven filters The invention relates to a method for producing a nonwoven fiber composite for the manufacture of filters in the tobacco industry, wherein the method feeds separated fiber materials to a fluidized bed and the separated filter material inside the fluidized bed are tr... | 01/15/2008 |
| 7261681 | Method and apparatus for applying additive to a moving, spread-out filter material web A method and apparatus for supplying an additive to a moving web of filter material of the tobacco-processing industry are provided. An adjustable window defines an opening, and additive is applied through the window opening onto the web. ... | 08/28/2007 |
| 7181817 | Method and apparatus for making an absorbent composite A method and apparatus for making an absorbent composite from continuous tow is disclosed. The method and apparatus includes the steps of or means for spreading a crimped tow; de-registering the crimped tow; shaping the de-registered tow to a substantially rectangul... | 02/27/2007 |
| 7140164 | Method of and apparatus for applying adhesive to running webs of paper and the like A novel and improved method of applying adhesive to one side of a running web of wrapping material for a rod-like filler of filter material for tobacco smoke includes directing toward the one side of the web a stream of adhesive which issues from an open-and-shut or... | 11/28/2006 |
| 7103946 | Method and apparatus for making an absorbent composite A method and apparatus for making an absorbent composite from continuous tow is disclosed. The method and apparatus includes the steps of or means for spreading a crimped tow; de-registering the crimped tow; shaping the de-registered tow to a substantially rectangul... | 09/12/2006 |
| 7076848 | Method and apparatus for making an absorbent composite A method and apparatus for making an absorbent composite from continuous tow is disclosed. The method and apparatus includes the steps of or means for spreading a crimped tow; de-registering the crimped tow; shaping the de-registered tow to a substantially rectangul... | 07/18/2006 |
| 7074170 | Method and apparatus for making cigarette filters with a centrally located flavored element A filter making apparatus includes a positioning device having a passageway therethrough, with the passageway guiding a continuous flavor element such as a continuous strand of textile material from an inlet of the passageway to an outlet of the passageway. A liquid... | 07/11/2006 |
| 7059027 | Method and apparatus for making an absorbent composite A method and apparatus for making an absorbent composite from continuous tow is disclosed. The method and apparatus includes the steps of or means for spreading a crimped tow; de-registering the crimped tow; shaping the de-registered tow to a substantially rectangul... | 06/13/2006 |
| 6908421 | Filter manufacturing machine A filter-manufacturing machine comprises spray nozzles located on both sides of a feeding path of sheet material made of filter fibers, respectively, and the spray nozzles each have a line of spray holes of a liquid binder with high viscosity and a plurality of air ... | 06/21/2005 |
| 6723033 | Method and apparatus for producing particle bearing filter rod A method and apparatus for delivering predetermined amounts of particulate material and/or plasticizer to a location remote from the particulate material, and a cigarette filter and a cigarette made according to the method and apparatus. ... | 04/20/2004 |
| 6263882 | Method of and apparatus for making filter mouthpieces for rod-shaped articles of the tobacco processing industry A tow of filamentary filter material for tobacco smoke which is to be converted into a rod-like filler of a filter rod is conveyed along an elongated path first through a stretching or tensioning zone where the filaments are stretched and the tow is conve... | 07/24/2001 |
| 6059706 | Method of and apparatus for treating a filter tow A tow of fibrous filter material for tobacco smoke is transported lengthwise through a so-called finger which is an elongated channel wherein the cross-sectional area of the tow is gradually reduced to that of the rod-like filler in the wrapper of a filte... | 05/09/2000 |
| 5725467 | Method of and apparatus for making a tow of filter material for tobacco smoke The treatment of a tow of filamentary filter material for tobacco smoke prior to draping of the resulting filler into a web of wrapping material is followed by advancement of the filler in a plane and single or multiple deflection of successive increments... | 03/10/1998 |
| 5496253 | Method and apparatus for forming bookbinding strips Apparatus and method are disclosed for preparing a preprinted book cover for application to a book block in a perfect binding system A double-walled tubular attachment strip is adhesively attached to the cover spine portion of successive covers in a conti... | 03/05/1996 |
| 5387285 | Apparatus for injecting a fluid into filter tow A fluid injection device and method of injecting and distributing a fluid, such as a gas, liquid or combination thereof, to a continuous, multifilament filter tow used in the manufacture of filters for smokable tobacco products. The injection device inclu... | 02/07/1995 |
| 5331976 | Transport jet adapter Apparatus and method are provided for supplying cellulose acetate tow for the manufacture of cigarette filters from the transport jet of a tow opener to a cigarette filter rodmaking garniture. The apparatus is a frustoconical member having a multiplicity ... | 07/26/1994 |
| 5322495 | High speed vacuum assisted free flowing material inserter in filter rod manufacture This invention relates to a method for delivering free-flowing material into discrete receiving spaces separating filter plugs in partially constructed cigarette filter assemblies. The method entails rapidly feeding a free flowing material such as charcoa... | 06/21/1994 |
| 5282779 | Air jet for producing filter plug for cigarette An air jet for producing a filter plug for cigarette comprising an imparting portion for propelling force to a tow-like fiber bundle and a beak portion, wherein said imparting portion is constructed by a trumpet (21) having a converged tip end region, a t... | 02/01/1994 |
| 5221247 | High speed vacuum assisted free flowing material inserter in filter rod manfacture This invention relates to a device for delivering free-flowing material into discrete receiving spaces separating filter plugs in partially constructed cigarette filter assemblies. The device has a metering drum for dispensing free-flowing material onto a... | 06/22/1993 |
| 5203757 | Method and apparatus for producing tobacco smoke filter rods Filter tow comprising crimped spun fibers and/or filaments is prepared in a preparation zone and fed to a processing zone where it is gathered, in an intake zone, then wrapped and cut into tobacco smoke filter rods. In the region of the intake zone, a gas... | 04/20/1993 |
| 5195543 | Balanced flow tobacco smoke filter A cigarette filter having a core of synthetic fibrous filter material and an outer plug wrap is provided with a group of longitudinal bores and a group of peripheral channels in the core to improve the filtration efficiency and to balance the distribution... | 03/23/1993 |
| 5163452 | Rod making apparatus for use in the manufacture of smoking articles Rods for use in the manufacture of smoking products are provided using a rod-making apparatus. The apparatus includes (a) an unwind unit for continuously supplying a material having a continuous integrity; (b) a rod-forming unit for forming a rod-like com... | 11/17/1992 |
| 5106357 | Method and apparatus for producing tobacco smoke filter rods Filter tow comprising crimped spun fibers and/or filaments is prepared in a preparation zone and fed to a processing zone where it is gathered, in an intake zone, then wrapped and cut into tobacco smoke filter rods. In the region of the intake zone, a gas... | 04/21/1992 |
| 4946338 | Tube holding or guiding apparatus A tube is held or guided parallel to its length by providing a channel-like structure aligned with the tube and having sides which are spaced apart by a distance less than the diameter of the tube. Circumferentially spaced longitudinal portions of the out... | 08/07/1990 |
| 4943272 | Apparatus for manufacturing cigarette filter A filter-manufacturing apparatus comprises a cutting drum, which has transporting grooves and adapted to receive filter rods having a prescribed length. An annular slit is formed in the circumference of the cutting drum. A circular cutting blade extends i... | 07/24/1990 |
| 4889139 | Method of and machine for making a rod-like filler of fibrous material A stream which advances along the underside of the elongated lower reach of an endless air-permeable belt conveyor carries a surplus of fibrous material and is relieved of the surplus by a trimming device which is mounted downstream of one or more nozzles... | 12/26/1989 |
| 4798570 | Process for preparing filter rods An improved process for preparing fiber rods useful as cigarette filter tips comprises feeding a synthetic fiber tow through an air jet bulker directly into the garniture of a conventional cigarette filter making apparatus. The process allows production o... | 01/17/1989 |
| 4784632 | Tobacco smoke filter and method and apparatus for making same A method and means for making an improved tobacco smoke filter is characterized by the production of longitudinally continuous grooves running from end-to-end in the peripheral surface of a smoke-impervious filter plug wrap with the grooves having a trans... | 11/15/1988 |
| 4747814 | Fiber separator Apparatus is disclosed for use in the manufacture of rod like elements, for example cigarette filters formed of filamentary tow, for dissipating conveying gas from a conduit through which the tow is conveyed pneumatically through a series of processing st... | 05/31/1988 |
| 4676769 | Method and apparatus for regulating the resistance of filter rod sections to the flow of gases therethrough The pressure of compressed air in one or more nozzles which convert successive increments of a running tow of filamentary filter material into a rodlike filler in a filter rod making machine is regulated in response to variations in the speed of the fille... | 06/30/1987 |
| 4661090 | Filter rod manufacture In the production of cigarette filter rod from filter tow the conveyance of tow into a tow shaping unit (12, 32, 56, 76) is aided by controlling tow tension so that excessive stretch (and hence possible loss of crimp) is avoided. The tension is controlled... | 04/28/1987 |
| 4636182 | Filter manufacturing method for the production of pre-filters to remove harmful substances in cigarette smoke by use of pine needles A process of manufacturing a pre-filter for the filteration of harmful substances in cigarettes by using pine needles which have been steamed to eliminate the odor of the pine resin. The steamed pine needles then are dried in a shaded lot and formed into ... | 01/13/1987 |
| 4594162 | Pleated filter and method and apparatus for fabricating same A filter for separating constituent components of fluids includes a plural-layer sheet-like member which is multiply pleated to provide layers of the same or different porosity or to provide structural support layers for pleating a soft or membrane-like f... | 06/10/1986 |
| 4549875 | Manufacture of tobacco smoke filters Apparatus and method are described for manufacturing a filter rod from a continuous multifilament filter tow which is treated with a smoke-modifying agent during the filter rod manufacturing process.... | 10/29/1985 |
| 4541825 | Low air pressure method and apparatus for forming filter rods The present invention relates to high speed process and apparatus suitable for the preparation of cigarette filter rods having high tow utilization in terms of pressure drop per unit rod weight without producing substantial tow density variations. In acco... | 09/17/1985 |
| 4537583 | Method and apparatus for conveying filter tow Apparatus is disclosed for withdrawing a bloomed, continuous multifilament filter tow from a jet device and conveying the filter tow to filter rod-forming means in such a way that compaction or compression of the filter tow prior to its entry into the rod... | 08/27/1985 |
| 4522616 | Method and apparatus for forming cigarette filter rods The present invention relates to high speed processes and apparatus for the manufacture of cigarette filter rods. In accordance with this invention it has been discovered that in a process of manufacturing filter elements from opened and deregistered crim... | 06/11/1985 |
| 4507107 | Filter manufacturing technique Method and apparatus for producing axially elongated, self-sustaining, dimensionally stable smoke rods or the like from filamentary tow by feeding the tow into a confined zone having a non-porous section and a porous section, simultaneously feeding gas un... | 03/26/1985 |
| 4472224 | Opening of cigarette filter tow and jet therefore An improved jet device for treating a continuous, multifilament filter tow is disclosed wherein discharge means affixed to the exit end of the jet tube of the device are modified to present a smooth streamlined surface to the moving filter tow and to prev... | 09/18/1984 |
