Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7674218 | Filter component cutting system A filter component cutting system comprises a supply hopper of elongate filter rods and a cutting drum with spaced apart flutes on an exterior surface of the drum for receiving the elongate filler rods. A transfer mechanism receives the elongate filter rods from the... | 03/09/2010 |
| 7435208 | Degradable slitted cigarette filter A cigarette filter comprises an elongate filter component having a longitudinal axis. A plurality of spaced apart slits generally perpendicular to the longitudinal axis of the filter component partially extend into the component. The slits enable the filter to disin... | 10/14/2008 |
| 7338421 | Method and a device for making filters for tobacco products Filters for tobacco products are manufactured by a device comprising a conveyor drum rotatable about a horizontal axis and furnished with peripheral grooves, each holding a leaf of paper material preassembled with a first filter element. The single groove is flanked... | 03/04/2008 |
| 7300394 | Method and device for producing a filter rod Method and device for producing a filter rod. The method includes melting at least one first type of filter material, pressing the at least one first type of filter material through at least one nozzle, depositing the at least one first type of filter material on a ... | 11/27/2007 |
| 7115085 | Method and apparatus for incorporating objects into cigarette filters Cigarette filter rods having individual objects positioned at predetermined intervals therein are prepared by transferring the individual objects from a rotating horizontal pan to a rotating vertical wheel and then depositing the object into a web of filter tow. Eac... | 10/03/2006 |
| 6932752 | Multiple garniture belt drive system for filter rod machinery A machine for producing an endless filter rod comprises a multi-section garniture and a multiple garniture belt drive system that includes several garniture belts having linear aligned portions for delivering filter paper with filter components thereon through the s... | 08/23/2005 |
| 6783617 | Method of densifying streams of filter material for tobacco smoke A filter rod making machine wherein successive increments of a stream constituting a converted tow of filamentary filter material for tobacco smoke are contacted by a compressing tool which is vibrated at a frequency and/or amplitude sufficient to prevent over-heati... | 08/31/2004 |
| 6701934 | Apparatus for making cigarettes with composite filters Double-filter cigarettes are produced by inserting different filter components between two rods of tobacco. This is attained by inserting filter components of different final lengths, obtained from separate supplies and processed along separate feed paths... | 03/09/2004 |
| 6537186 | Process and apparatus for high-speed filling of composite cigarette filters A process of manufacturing composite filter stock is provided that includes several steps. In a first step, a paper carrier strip feeds along a conveyor. Along one edge of the carrier strip, the paper is folded back against itself. Fibrous filter segments... | 03/25/2003 |
| 6427699 | Method and apparatus for making cigarettes with composite filters Double-filter cigarettes are produced by inserting different filter components between two rods of tobacco. This is attained by inserting filter components of different final lengths, obtained from separate supplies and processed along separate feed paths... | 08/06/2002 |
| 6336896 | Automatic filter tip attaching machine An automatic filter tip attaching machine includes a mechanical structure moved by a computer program to automatically attach three filter tip stages a, b, c to cigarettes, with a chemical powder filled in the filter tip b to absorb nicotine and tar compl... | 01/08/2002 |
| 6062228 | Biodegradable filter material and method for its manufacture There is provided a biodegradable filter tow or filter material from renewable raw materials for the use as a tobacco smoke filter element of cigarettes, cigars or pipes as well as a method for preparing it, wherein fibers, films or foams prepared in an e... | 05/16/2000 |
| 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 |
| 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 |
| 4997415 | Continuous rod-making machine A ledger assembly for a continuous rod cut-off includes a rigid beam (12) carrying ledger tubes (10) and pivotally supported by fibreglass springs (16,22). Vertical springs (22) resist the cutting force of the cut-off knife (30) and allow reciprocal movem... | 03/05/1991 |
| 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 |
| 4928713 | Cigarette making machines A rod cut-off in a cigarette making machine includes a cutting device 32 having a first drive 34, a ledger 10 for supporting the rod during cutting and having a second drive 22, separate from the first drive, a device for synchronizing (prefereably electr... | 05/29/1990 |
| 4926887 | Apparatus for manipulating rod-shaped articles Apparatus for manipulating plain cigarettes between the cutoff of a cigarette making machine and the next-following machine, such as a filter tipping machine, has an elongated guide with a prismatic channel for advancement of successive plain cigarettes a... | 05/22/1990 |
| 4917660 | Apparatus for producing cylindrical filters Tows of fibers are wrapped around a mandrel or a central fiber core to form a cylindrical filter. At least one belt is located in position to make essentially linear contact with the cylindrical filter, and the at least one belt is driven so as to draw th... | 04/17/1990 |
| 4841993 | Method of and machine for making filter cigarettes A mass-producing filter tipping machine wherein two coaxial plain cigarettes of unit length are simultaneously severed to yield pairs of coaxial plain cigarettes of unit length which are moved apart to provide spaces for filter mouthpieces of double unit ... | 06/27/1989 |
| 4791943 | Cigarette filter unit and method for the production thereof In order, when a cigarette is being smoked, to reduce, or even reverse, the tendency of the condensate-content to increase, a cigarette filter unit is proposed in which at least one partition having at least two areas of different porosities and made of a... | 12/20/1988 |
| 4578053 | Tobacco-smoke filters For the manufacture of filter rod, filtration material and plugwrap being a thermally mouldable paperlike material, are fed, continuously to a rod maker, said plugwrap and rod being brought into contact with a heated moulding means to produce an impressio... | 03/25/1986 |
| 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 |
| 4525161 | Method for producing tobacco smoke filters A method is disclosed for producing tobacco smoke filters wherein a continuous tube of smoke filtration material is ensheathed in a smoke-pervious layer of fibrous material. The ensheathed tube is cut into discrete lengths and in each of the lengths a cro... | 06/25/1985 |
| 4508525 | Method and apparatus for producing tobacco smoke filter having improved tar/carbon monoxide ratio A method and apparatus for producing tobacco smoke filter having an improved tar/carbon monoxide ratio is disclosed. The filter is obtained by sealing off the center portion of the filter with an inner member which is impermeable to the passage of smoke, ... | 04/02/1985 |
| 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 |
| 4501579 | Cigarette filter units The invention concerns a method for producing a cigarette filter unit, in which filter elements are disposed on a porous or perforated covering strip and at least partially wrapped thereby and adhesively joined. The adhesive substance is applied to the co... | 02/26/1985 |
| 4486186 | Method and machine for making filter rod sections for cigarettes or the like The trailing end of a running tow of filamentary filter material in a filter rod making machine is spliced to the leader of a fresh tow, and the splice is held at a preselected location ahead of the first tow treating station in the machine. An optoelectr... | 12/04/1984 |
| 4436517 | Apparatus for making transverse flow cigarette filters In apparatus for making transverse-flow cigarette filters, a rod of cellulose acetate impregnated with a plasticizing agent and having a porous covering is cut into sections each having a length of several filters. From the cutting station, the rod sectio... | 03/13/1984 |
| 4425106 | Production of cigarette filter units The invention concerns a method for producing a cigarette filter unit, in which filter elements are disposed on a porous or perforated covering strip and at least partially wrapped thereby and adhesively joined. The adhesive substance is applied to the co... | 01/10/1984 |
| 4411640 | Apparatus for the production of cigarette filter tips having multi-sectional construction The apparatus is provided with a cutter having pairs or rotary knives for cutting a filter rod into plural filter plugs and a pin wheel for positively ejecting the filter plugs in spaced array onto a conveyor. The apparatus also has a rotary feed means fo... | 10/25/1983 |
| 4385536 | Apparatus for forming an aeration groove in a filter An apparatus for forming an aeration groove in a filter which is composed of a body of entrainment-type fiberous filter material and a layer of plug wrap paper circumferentially about the body. The apparatus is comprised of a rotatable filter drum for con... | 05/31/1983 |
| 4321050 | Apparatus for severing and shifting plugs for cigarettes or the like Filter plugs of double unit length are fed sideways into successive flutes of a rotating drum which moves successive plugs past a rotary knife so that each plug yields two coaxial sections of unit length. Each flute contains two spaced apart mechanical st... | 03/23/1982 |
| 4281591 | Production of cigarette filter units The invention concerns a method for producing a cigarette filter unit, in which filter elements are disposed on a porous or perforated covering strip and at least partially wrapped thereby and adhesively joined. The adhesive substance is applied to the co... | 08/04/1981 |
| 4274428 | Material web for the manufacture of filter rods for tobacco products and apparatus and process for producing such web The invention relates to a longitudinally creped paper web for use in the manufacture of filter rods. In order to improve the filtering capacity and resistance to flow therethrough without weakening filter plugs formed from the web in respect of resistanc... | 06/23/1981 |
| 4259130 | Production of rod-shape elements A continuous strand consisting of loose filamentary and/or fibrous material is brought into engagement with a conveying and forming belt in at least approximately tension-free condition by means of at least one continuously moving conveying element which ... | 03/31/1981 |
| 4252527 | Glue transfer apparatus for cigarette filters A filter is formed by placing increments of glue in spaced apart relation on a moving stream of plug wrap paper and thereafter depositing alternating fibrous filter sections on the glue increments. Particulate material is then deposited between the fibrou... | 02/24/1981 |
| 4238993 | Apparatus for monitoring filter rod sections in filter tipping machines A filter tipping machine wherein pairs of coaxial plain cigarettes are united with filter plugs of double unit length by adhesive-coated bands. When a filter plug is missing, a mechanical or a photosensitive filter plug detector transmits a signal to a va... | 12/16/1980 |
| 4238994 | Method and apparatus for monitoring and controlling the production of composite filter mouthpieces for cigarettes or the like A continuous filter rod wherein dissimilar filter rod sections alternate with each other is monitored by a photosensitive detector which detects changes in the degree to which different sections absorb and/or reflect radiation. A pulse generator transmits... | 12/16/1980 |
