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6481259 |
Method for precision bending of a sheet of material and slit sheet therefor
A method for precision bending of a sheet of material ( 31,41,61,91,231 ) along a bend line ( 35,45,62-66,96,235 ) and the resulting sheet are disclosed. A method includes a step of forming and...
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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...
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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...
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4936920 |
High void volume/enhanced firmness tobacco rod and method of processing tobacco
A tobacco product characterized by improved void volume and firmness characteristics and a method of making a tobacco product by applying binder material to tobacco filler, treating the filler to...
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4924887 |
Tobacco rods and filters
Tobacco containing cigarette filter plugs comprise strands of tobacco material which are bound with an activated binding agent. The filter plugs exhibit good firmnless and integrity, and provide...
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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...
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4911684 |
Smoking article mouthpieces
A method of making a ventilated cigarette filter plug in which a bore is thermally formed, by a laser beam for example, in a rod comprising a duct extending coaxially of the rod and matrix material...
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4883449 |
Device for making grooves in cigarette filters
An apparatus for sequentially forming a plurality of generally longitudinally extending grooves in the peripheral surface of a filter rod includes a hollow rotatable drum having a plurality of...
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4869274 |
Cooling apparatus for use in the manufacture of tobacco filters
Apparatus for use in cooling heated filter rods particularly in the manufacture of cigarette filters is in the form a conduit through which the heated filter rod material is passed axially while...
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4795411 |
Apparatus for forming annular grooves or slits in rod-shaped articles
An apparatus is disclosed for forming annular grooves or slits in rod-shaped articles such as cigarette filter plugs. The apparatus comprises a first endless belt or similar device and, spaced...
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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...
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4677996 |
Smoking article mouthpieces
A cigarette filter element comprising at least one duct extending from one end to the other of the element, which element is operated on by a heated former moving relatively to it in a rotary...
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4655736 |
Method of manufacturing a tobacco smoke filter
A method of manufacturing tobacco smoke filter of filamentous material with at least one end thereof having a preselected fused area embedded in and over at least a portion of the cross-sectional...
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4636183 |
Apparatus for making grooves in cigarette filters
An apparatus for, in one advantageous embodiment, concurrently forming a plurality of generally longitudinally extending grooves in a filter rod, and in another advantageous embodiment, for making...
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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...
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4620557 |
Cigarette having a mouthpiece and method of making same
A cigarette has a cylindrical impermeable mouthpiece located in coaxial abutment to one end of a tobacco column of the cigarette. The mouthpiece includes an annular groove in its peripheral surface...
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4601686 |
Production of tobacco-smoke filters
The subject invention pertains to a device for operating upon a filter-rod lengths comprising a first conveyor for transferring the filter lengths from a supply outlet to a plurality of further...
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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...
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4533427 |
Device for making grooves in cigarette filters
An apparatus for forming grooves in the peripheral surface of a filter rod includes an endless conveyor device having a generally horizontal top conveyor flight which intermittently moves the...
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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...
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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...
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4492238 |
Method and apparatus for production of smoke filter components
A method is disclosed according to which a cylindrical object, such as a rod of smoke filter material, is pressed against a heated former element to form a permanent impression in one portion of...
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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...
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4357188 |
Method for manufacturing cigarette filters
A method for manufacturing cigarette filters which have a well-stabilized shape in which acetate fibrous tows impregnated with carboxylic acid ester of polyol are formed into a predetermined shape,...
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4355995 |
Tobacco smoke filter providing tobacco flavor enrichment, and method for producing same
A tobacco smoke filter is disclosed, which provides tobacco flavor enrichment of smoke passing therethrough. The filter comprises a reconstituted tobacco member formed from a coherent sheet of...
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4354889 |
Ink reservoir element for use in a marking instrument, and method and apparatus for producing same
An ink reservoir element for use in a marking instrument is disclosed, which combines good ink holding capacity and good ink release properties with a wide variety of inks. The ink reservoir...
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4331166 |
Cigarette
The sensory effect of cigarette smoke is improved by using a disc (24) to shape the flow of smoke (32) leaving smoking article (10) into a divergent pattern, thus increasing the perceived flavor of...
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4312698 |
Fibrous rod forming device
A ridge remover for smoothing and shaping rod surfaces where jointure marks occur in fibrous rod manufacture when made using a porous belt garniture device.
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4285677 |
Method and apparatus for the manufacture of cigarette filters containing particulate material
Method and apparatus for the manufacture of cigarette filters containing particulate material. Filter material composed of cellulose acetate tow is fed in the axial direction through a gap defined...
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4261373 |
Tobacco filters and method for forming same
Molding tobacco filters having a variety of cross-sections which are practically useful in providing various preferable effects such as improvement in pressure drop, balanced adsorption of smoke...
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4164438 |
Method of making transverse flow of cigarette filters
A method of making a filtering member of cellulose acetate for cigarette filters of the transverse flow type in which a rod formed by a bunch of cellulose acetate fibres coated with plasticizing...
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4085663 |
Crimper assembly
An improved crimper assembly for use in making crimped filter materials is disclosed. The improved features of the assembly include an insulated central heater block which incorporates a steam...
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4075936 |
Method and apparatus for making tobacco smoke filter
Tobacco smoke filters and methods and means for making same wherein the products have both internal and external cavities, with the external cavities being of a limited nature so as to provide a...
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4024001 |
Smoke filter process and apparatus
The invention provides a process for the continuous production of an elongate smoke filtering member comprising a heat-activatable bonding material and having air-permeable deformations at...
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3941036 |
Continuous filter rod making machines
A filler for a continuous cigarette filter rod is formed by feeding a wide band of filaments of filter material on to a slower moving surface, to which suction is applied so that the band is...
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3826177 |
APPARATUS FOR MAKING FILTER MEANS
An apparatus for making 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...
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3805682 |
METHOD OF MAKING TOBACCO SMOKE FILTERS
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...
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3693313 |
CIGARETTE PAPER TUBE MANUFACTURE
In the manufacture of spills of cigarette paper for use in the manual making of filter cigarettes, apparatus is provided for initially forming a web of cigarette paper into a hollow tube. The...
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3646855 |
METHOD AND APPARATUS FOR PRODUCING A TOBACCO FILTER ROD OR CORD FROM A WEB OF FIBROUS MATERIAL
Apparatus and process for treating paper strip material to render it particularly adapted to be gathered and enclosed in a wrapper to make a filter cord subdividable into efficient cigarette...
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3637447 |
METHOD OF MAKING FILTER MEANS BY CRIMPING AND OVERWRAPPING A TUBULAR ELEMENT
A method and apparatus for making 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...
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3595137 |
FILTER TIPS FOR CIGARETTES
The manufacture of cigarette filters containing a particulate filtering material in a compartment in which beads of polystyrene are expanded within the compartment to take up excess space in it and...
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3527234 |
APPARATUS FOR CONVOLUTING UNITING BANDS AROUND ROD-SHAPED ARTICLES
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3518921 |
METHOD AND APPARATUS FOR PRODUCING A TOBACCO FILTER ROD OR CORD FROM A WEB OF FIBROUS MATERIAL
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3400032 |
Filter rod making machine
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3383449 |
Method for producing an endless filter string
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3371000 |
Method and apparatus for making integral multiple tobacco smoke filters
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3370514 |
Manufacture of cigarette filters
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3366521 |
Method for the production of cellulose acetate cigarette filter tips
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3179024 |
Method of and arrangement for producing crimped flat material
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3106501 |
Process for manufacturing filters
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