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7267539 |
System for agglomerating chopped fiber strand
A new system for making agglomerates of chopped glass fiber strand segments is disclosed and claimed. The agglomerates, made by feeding wet chopped fiber strand segments into a wave chamber having...
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7232300 |
Method and apparatus for forming tow-based absorbent structures with a single casing sheet
An apparatus and method for forming tow-based absorbent structures having a single casing sheet are disclosed. The apparatus has a tow supply mechanism for providing tow material, a particulate...
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7134859 |
Nits separator
A plant which serves to produce a nonwoven web of fibers out of a fibrous material, such a cellulose pulp. The plant comprises a hammer mill for defibrating the fibrous material and a forming head...
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7121818 |
System and method for absorbent core production
A system, method, and apparatus for preparing an absorbent core for use in absorbent garments is disclosed. The apparatus includes a funnel having a first end and a second end, the second end being...
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6758998 |
Method and device for inserting fibers in expanded form into a cavity or depositing them on a surface
A method for filling a receiver with expanded fibers includes the steps of feeding at least one bundle of fibers from at least one roving; introducing the at least one bundle into a portable tool...
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6521151 |
Conversion of fiber cores into molded products
A method and apparatus for converting paper fiber articles into molded parts. The method and apparatus are particularly advantageous in converting paper fiber cores, utilized for winding and...
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6409856 |
Apparatus for smoothing out the surface weight distribution of mats
An apparatus is described for smoothing out the surface weight distribution of one or multilayer mats containing lignocellulose and/or cellulose with a binding agent dispersed therein for...
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6358461 |
Method of manufacture of nonwoven fabric
A method of manufacture of a nonwoven cellulose fabric is disclosed. The fabric is made from fibers formed by extrusion of a solution of cellulose through a spinning jet. The extruded fiber is...
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6247914 |
Casing material and a method and apparatus for its manufacture
The invention relates to a method and to an apparatus for perforating a web of material intended to form an outer casing sheet of absorbent articles. As the web is advanced, the web is first...
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6233787 |
Fiber distributor
An apparatus for uniformly distributing a disintegrated material on a fiber layer forming surface comprising a cylindrical housing having a perforated plane-surfaced bottom wall; an inlet opening...
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6221292 |
Apparatus and method for molding polymeric fibers into products
An apparatus and method are provided for molding clusters of fibers, including at least some thermoplastic fibers, into products at a cost, quality, and performance level acceptable for commercial...
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6217805 |
Fiber choppers for molding processes
This process and apparatus use at least one chopper unit. The fiber choppers may be laser beam choppers or existing standard chopper units. The process and apparatus for producing a...
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6183675 |
Multiple fiber choppers for molding processes
This process and apparatus use at least two chopper units. The fiber choppers may be laser beam choppers or existing standard chopper units. The process and apparatus for producing a...
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6063317 |
Method for molding polymeric fibers into products
An apparatus and method are provided for molding clusters of fibers, including at least some thermoplastic fibers, into products at a cost, quality, and performance level acceptable for commercial...
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6033199 |
Apparatus for forming an intermittent stream of particles for application to a fibrous web
The present invention provides an apparatus for applying discrete particles of absorbent material to a predetermined location on a fibrous web. The apparatus comprises a continuously rotating mask,...
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5972265 |
Method and apparatus for producing composites
A method and system (10) for producing a composite material (108) from particles (102) and binder (104), is described. The system includes a feed zone (12), a unilayering zone (14), a mat reforming...
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5858292 |
Method and apparatus for making stretchable absorbent articles
A method and apparatus for making stretchable absorbent diaper articles. An absorbent material is provided and entangled with a stretchable material to form a stretchable network incorporating the...
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5795517 |
Collection and deposition of chopped fibrous strands for formation into non-woven webs of bonded chopped fibers
An air cannon (100), formed by associating an inlet cone (116), an air amplifier (104) and an outlet cone (124) with one another, receives chopped fibers and forcefully deposits the chopped fibers...
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5762844 |
Side-by-side absorbent pad forming
A distinctive method and apparatus (20) for forming a composite fibrous web (22) includes a web supply (24, 25), which provides at least two appointed fiber layer sections (26, 28) of desired fiber...
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5637326 |
Apparatus for making chopped amorphous fibers with an air transport system
An apparatus for continuously making chopped amorphous fibers that uses an air transport system. The apparatus includes a source of floss, a duct for transporting the floss while it is entrained in...
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5518577 |
Apparatus for manufacturing fiber-reinforced molding compound
A paste supply tube in a molding compound manufacturing apparatus includes first and second paste supply tubes extending parallel or substantially parallel to each other and in a direction...
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5229052 |
Apparatus and method for applying multiple type fibers to a foraminous surface
A method and apparatus for applying fibers to a foraminous mold or surface using strands of binder and glass fibers is disclosed. A strand of binder fiber is chopped and entrained into a chute. The...
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5226991 |
Method of fabricating airlaid articles and apparatus for performing the method
A method and an apparatus is used for forming airlaid articles such as diapers, sanitary napkins and the like. The apparatus includes an anvil drum with die cavities formed therein. The die...
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5188785 |
Apparatus and method of manufacturing synthetic boards including fire-retardant boards
A method and apparatus for producing a synthetic board from cellulosic or lignocellulosic fibers is disclosed wherein a standard isocyanate binder is emulsified and immediately applied to the...
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5093963 |
Ductless webber
A cylinder, for example a lickerin, and feed mechanism create a supply of individual fibers, for example pulp, which follow the rotation of the lickerin. These fibers are deflected from the...
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5093069 |
Process and device for the production of mineral wool nonwoven fabrics especially from rock wool
In the continuous production of mineral wool nonwoven fabrics, fiber/gas/air mixtures (3, 4) produced by several shredding units (14 to 17) are directed onto collecting conveyor units (19, 21) with...
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5076774 |
Apparatus for forming three dimensional composite webs
Apparatus for forming three dimensional shaped webs. The apparatus controls the flow of entraining air for an air laid web by restricting passage of the air through selected zones of a condensing...
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5034175 |
Method and apparatus for manufacturing fiber board sheets
Methods for manufacturing fiber board sheets from defibered lignocellulose-containing material are disclosed, including drying the defibered lignocellulose-containing material with heated gas in a...
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5004579 |
Methods and apparatus for selective placement of fibrous material in formed fibrous articles
Apparatus and methods for forming improved airlaid fibrous articles are disclosed. Airlaying apparatus is provided which permits at least two types of fibrous materials to be defiberized and...
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4976905 |
Method and apparatus for making wood product
A composite lumber product of consolidated comminuted wood and thermosetting resin made by a method which comprises densifying the material into a product-shaped heated metal mold by applying the...
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4971742 |
Method and apparatus for forming a highly isotropic web structure
Apparatus for forming highly isotropic web products includes an elevator that adjustably positions a former head and an associated air and fiber supply with respect to a product condenser for...
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4971540 |
Apparatus for laying a mat of fibrous material
An apparatus for laying a mat of fibrous material which includes an upwardly inclined belt onto which the fibrous material is fed, one or more combing roller located above the belt, a stripping...
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4952128 |
Transverse web forming apparatus
A web or structure is formed by feeding separate supplies of fibrous material into contact with two separate lickerins that are parallel to each other and rotated toward each other. The fibers from...
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4950353 |
Manufacturing apparatus for sheet-shaped molding material including a scattering and scraping roller
An apparatus for continuously manufacturing a sheet of molded compound includes a first conveying unit for continuously conveying a lower film. First and second impregnation rollers are provided...
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4931357 |
Variable transverse webber and stratified webs formed therewith
A web or structure is formed by feeding separate supplies of fibrous material into contact with two separate lickerins that are parallel to each other and rotated toward each other. The fibers from...
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4927685 |
Transverse webber and stratified webs formed therewith
A nonwoven web is formed by feeding separate supplies of fibrous material into contact with two separate lickerins that are parallel to each other and rotated toward each other. The fibers from the...
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4915897 |
Transverse pocket forming machine and method for use thereof
A pad is formed by feeding separate supplies of fibrous material into contact with two separate lickerins that are parallel to each other and rotated toward each other. The fibers from the two...
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4883624 |
Method and apparatus for manufacturing blanks of semi-finished products
A process is provided for manufacturing blanks comprising the production of a batch of fiber-reinforced synthetic resin compound, the production of a piece of fiber mat, depositing the batch of...
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4865798 |
Process and apparatus for producing a fiber web
A process for the production of a fiber web on a movable, gas-permeable surface of a continuous laydown belt which is under vacuum and which forms a distribution chamber. After the fibers are...
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4855179 |
Production of nonwoven fibrous articles
Superabsorbent articles in the form of soft, nonwoven fibrous webs are produced from aqueous fiber-forming polymer solutions by forming the polymer into water soluble filaments, contacting the...
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4795335 |
Multi-headed ductless webber
A lickerin and feed mechanism create a supply of individual fibers which follow the rotation of the lickerin. These fibers are deflected from the lickerin in the form of a stream by means of a...
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4767586 |
Apparatus and method for forming a multicomponent integral laid fibrous web with discrete homogeneous compositional zones, and fibrous web produced thereby
Apparatus and method for forming an integral laid fibrous web from multiple fiberizable components, characterized by generally discrete homogeneous compositional zones therein. The system comprises...
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4732552 |
Fiber processing apparatus having slotted outlets
The throughput of an apparatus for processing fibrous materials is increased by a fiber outlet portion consisting essentially of a plurality of dividers oriented in a direction perpendicular to the...
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4701294 |
Eductor airforming apparatus
The present invention provides an improved apparatus and method for forming a fibrous web. In accordance with the invention, a distributor housing delimits a fiberizing zone, and a delivery...
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4674966 |
Apparatus for forming fibrous pads
An apparatus for defiberizing a web of compressed material into fluff and then forming the fluff into pads, and a method of use of the apparatus. The apparatus includes a hammermill or other...
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4650409 |
Apparatus for uniformly distributing a disintegrated fibrous material on a fiber layer forming surface in plants for the dry forming of paper
The formation head comprises a casing of substantially rectangular configuration in plan view provided with a perforated flat bottom-screen or sieve, and with a top wall having a number of openings...
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4528050 |
Producing filler material, particularly for cigarette filters
Filler material, particularly for cigarette filters, is produced by feeding a first stream of substantially continuous filaments of filler material onto a pin roller which is driven at a speed such...
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4390336 |
Apparatus for air laid fiberglass mat
An improvement in the apparatus for the production of air laid fiberglass mat is provided. Fiberglass strands from bobbins, rovings or other sources are fed into a chopper assembly for chopping...
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4389175 |
Apparatus for distributing dry fibers onto a forming wire
A distributor for receiving an air suspension of fibers and uniformly spreading them over a moving forming wire. Upper and lower parallel rotors in the distributor have parallel axes and rotor...
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4382758 |
Apparatus for manufacturing cellulosic fibrous material which can be pressed into molded parts
An apparatus for manufacturing cellulosic fibrous material suitable for future compressing into a molded article which comprises a prepulverizing apparatus for cutting cellulosic material, a mixing...
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