Class 19/302 - Stratified or multilayer

Subclass of Class 19 - Textiles: fiber preparation
Definition: Method or apparatus wherein the nonwoven web is formed (a)
No. of patents: 38
Last issue date: 11/25/2008

Number	Title	Issue Date
7454817	Heat and flame shield A heat and fire resistant planar unitary shield formed of heat and flame resistant fibers and voluminous bulking fibers. The shield material has a heat and flame resistant zone with a majority of the heat and flame resistant fibers, and a voluminous bulking zone wit...	11/25/2008
7404921	Method and system for the manufacture of annular fibrous preforms Free fibers (10) are deposited on a rotary support turntable (30) by means of a hollow deposition cone (40) having an outer wall surrounding a chamber and pierced by multiple perforations. The fibers are delivered to the outer surface of the per...	07/29/2008
7278187	Manufacture of a multi-layer fabric A method and an apparatus for manufacturing a multi-layer fabric including at least one fibre layer formed by airlaying combined with at least one further layer which is formed by different technologies, including carding, spunlacing, meitblowing, spunbonding, or ai...	10/09/2007
6460224	Device and method for producing a fiber composite Method for the production of a fiber composite by placing fibers on a support, wherein long fibers are used at least as an essential component for the production of a nonwoven fabric (70). Said fibers are fed to at least one delivery head (A, A1, A2) subs...	10/08/2002
6273978	Process for producing carded and air-laid non-woven composite fabric The present invention provides a process for producing a carded and air-laid non-woven composite fabric. First, a fiber is subjected to carding treatment through a carding machine to form a carded web. Then, a fiber, powder, or particulate material is sub...	08/14/2001
6202259	Method and apparatus for depositing particulate material in a fibrous web A method and apparatus for depositing particulate material (30, 36) in an airlaid fibrous web (94) includes a moving of a forming surface (22) through a forming chamber (24), and a laying of a fibrous material (96) onto the forming surface to form the fib...	03/20/2001
5885623	Arrangement for air-layer fibre bodies on a moving air-permeable conveyor path An arrangement for fibre-laying on a moving air-permeable conveyor path (2) fibre bodies which are comprised of at least two different layers. The arrangement includes for each fibre layer a succession of air-laying units disposed sequentially in the dire...	03/23/1999
5840636	Conveyor belt having a woven fabric backing A conveyor belt is described having a woven fabric backing which includes staple fiber yarn and includes a twill weave with an inclination angle of 10° to 70° relative to the moving direction of the conveyor belt, and in which adjacent yarns have the sa...	11/24/1998
5804007	Methods of manufacturing composite fiber sheet A method of manufacturing a composite fiber sheet comprising: forming the first pile layer on the surface of the first fiber sheet by needling; laminating the second fiber sheet on the back-side of the first fiber sheet; and forming the second pile layer ...	09/08/1998
5728083	Multilayered absorbent structures A multilayered absorbent structure is disclosed. The absorbent structure has a plurality of absorbent planar regions defined by decreasing pore size with increasing depth into the region. Generally, each planar region has an absorbent layer having relativ...	03/17/1998
5537718	Method for production of material for composite article A method for producing a material for a fiber-reinforced composite article is disclosed which comprises preparing an apparatus composed of a belt and at least one fiber-separating and throwing device, setting the belt in motion and the roller in rotation,...	07/23/1996
5514324	Preparation of an absorbent sheet A sheet of an absorbent material which, comprises a blend of a fibrous substance and of a granulated substance in which the granulated substance is non-uniformly distributed in the sheet, there being alternating zones of higher and of lower density of sai...	05/07/1996
5361466	Method of forming a blanket of uniform thickness A synthetic microfiber blanket having a uniform thickness is formed from a nonuniform blanket having thin or feathered lateral edges. The nonuniform blanket is cut transversely into a plurality of discrete pieces of blanket of uniform length. The pluralit...	11/08/1994
5325571	Method and device for producing a shaped non-woven, non-woven obtained and use thereof A method for producing a shaped non-woven comprises the steps of feeding fibers on a carding machine over a limited width, superposing on a receiving system the fibrous web leaving the carding machine and needling the superposed layers. The superposition ...	07/05/1994
5108678	Process of making a fiber-reinforced plastic sheet having a gradient of fiber bundle size within the sheet This invention relates to a fiber reinforced plastic sheet having a gradient layer structure wherein the number of reinforcing fibers continuously varies and a process for producing the same by spreading a mixture of the fibers different in the number of ...	04/28/1992
5065478	Process and device for the reception of mineral fibers The invention relates to the reception of fibers under fibering machines to obtain a mat of mineral wool. It proposes assigning to each fibering machine its own collecting zone, the surfaces of the collecting zones increasing in the direction of the incre...	11/19/1991
4972551	Apparatus for making a non-woven fabric An apparatus for making a non-woven fabric comprises a plurality of tooth-carrying carding drums, which rotate in the same sense and succeed each other in the direction of travel of the preliminary web. Each carding drum which succeeds another in the dire...	11/27/1990
4910830	Process for producing fibrous webs of superposed web layers An apparatus and process for producing fibrous nonwoven fabrics of at least two superposed fibrous web layers of equal or different structure is disclosed by using at least two successively arranged cards (2, 5) in a card set, means for discharging the fi...	03/27/1990
4888231	Absorbent core having a dusting layer Airlaid fibrous webs having a primary layer having discrete particles of absorbent gelling material dispersed through at least a portion of the web airlaid over a dusting layer of essentially hydrophilic fiber material. The dusting layer acts to block the...	12/19/1989
4805269	Apparatus for producinhg fibrous webs of superposed web layers An apparatus for producing fibrous nonwoven fabrics of at least two superposed fibrous web layers of equal or different structure is disclosed by using at least two successively arranged cards (2, 5) in a card set, means for discharging the fibrous webs f...	02/21/1989
4747188	Web-laying A control system for a web-laying machine having reciprocating carriage means laying a web in folds on travelling conveyor means comprises variable speed drive means driving one of said carriage and conveyor means, conveyor measuring means measuring the t...	05/31/1988
4741941	Nonwoven web with projections Nonwoven web and method of making including interbonded thermoplastic fibers in an array of hollow projections extending outwardly from at least one surface of said web. The projections are separated by land areas of interbonded fibers, and the fiber orie...	05/03/1988
4706338	Apparatus for forming fibre webs An apparatus for forming fibre webs including a first component and a second component in the form of two textile fibres differentiated by their average fibre length or a textile fibre and wood pulp, said apparatus including a card means having a discharg...	11/17/1987
4598441	Apparatus for the manufacture of absorption pads for absorbing body fluid There is provided an apparatus for the manufacture of absorption pads for sorbing body fluid which is composed of two substantially identical so-called flake applicators each including a vacuum cylinder having shaped recesses which are so-called flake whe...	07/08/1986
4583267	Apparatus for making a fibrous web Apparatus for making a fibrous web comprises a plurality of carding drums (3, 4, 5, 6), which closely succeed each other in the direction of travel of the feed web and rotate in the same sense. An air-permeable collecting surface is provided, on which the...	04/22/1986
4568581	Molded three dimensional fibrous surfaced article and method of producing same Three dimensional molded articles suitable for use as fibrous surfaced panels for automobile trunk compartments and the like are produced by molding a heated non-woven web formed of a blend of relatively high melting fibers and relatively low melting ther...	02/04/1986
4540454	Method of forming a superthin absorbent product A superthin absorbent disposable product is provided having an absorbing layer containing superabsorbent and a wicking layer. The product is suitable for use in disposable diapers, sanitary napkins, incontinent pads, wipes and the like....	09/10/1985
4534086	Apparatus for making fibrous webs A fibrous feed web is delivered by a feeder to tooth-carrying carding drums, which rotate at a surface velocity which causes the fibers to flow off under centrifugal force to fly onto a continuously moving, air-permeable collecting surface, which is subje...	08/13/1985
4483668	Apparatus for forming multi-layer plate of lignocellulose-containing particles provided with at least one binder An arrangement for making a multi-layer particle board having several layers of a pressed fleece with two outer cover layers of lignocellulose-containing slender oriented particles mixed with binder material. The particles are strewn to form a lower layer...	11/20/1984
4481694	Fleece layering apparatus Fleece layering apparatus for forming a fibrous fabric web consisting of several layers of fleece with delivery means layering the infed fleece in a zig-zag manner, with which the infed fleece is moved by air-permeable delivery means against the surface o...	11/13/1984
4436564	Reinforcement product for use in cement boards and a method of manufacturing said product and boards The present invention discloses a reinforcement product for use in cement boards and a method of manufacturing said product and of manufacturing cement boards using this product. The reinforcement product of the present invention comprises cross-layered w...	03/13/1984
4425109	Method of piling and a transport storage pile formed of ribbon A method of piling plastics or rubber mixture ribbons on a support (1) for transport and storage wherein the ribbon (2) is folded in superimposed layers (3,4). The ribbon is folded in each layer partly to overlap not more than 2/3 of the width of the ribb...	01/10/1984
4178652	Apparatus for cleaning roller surfaces A method and apparatus for automatically cleaning the surface of a roller, such as a laminating roller, is disclosed herein. The method consists of rotating the roller at a predetermined fixed speed about its axis and simultaneously moving a nozzle which ...	12/18/1979
3976412	Apparatus for making fibrous sheet material Apparatus for dry forming one or more fibrous layers on a forming surface to provide eventually fiberboard or paper in which the fibers are fed by carrier air to a distributor immediately above the forming surface. The rate of flow of the carrier air and ...	08/24/1976
3963392	Apparatus for preparing air-laid nonwoven webs from combined streams A process and apparatus for forming a wide variety of air-laid nonwoven webs, with the apparatus including plural pairs of spaced parallel oppositely rotating lickerins, each pair having a movable divider plate therebetween. The lickerins individualize fi...	06/15/1976
3943605	Fluff article and method and apparatus for forming same A fluff pad for an absorbent product such as a diaper, sanitary napkin or the like is formed by superposing two layers of fluff top-to-top. The layers are formed separately but simultaneously on conveyor wires. The non-wire side of a layer is the "top". E...	03/16/1976
3940216	Apparatus for forming a nonwoven fibrous web This invention relates to an apparatus for forming a nonwoven fibrous web from multiple laps of staple fibers. The apparatus includes lap forming means for forming the laps of staple fibers and for generating air currents. A lap-confining channel is defin...	02/24/1976
3940302	Non-woven materials and a method of making them A non-woven web contains bicomponent filaments having a core of polypropylene and a sheath of specified copolyamides, together with polypropylene homofilaments, in which is embedded parallel yarns extending in its lengthwise direction. The yarns are compo...	02/24/1976

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Class 19/302 - Stratified or multilayer