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Class 57/409 - Plural or variable feed


Subclass of Class 57 - Textiles: spinning, twisting, and twining
Definition: Subject matter wherein the supply of discrete fibers is
No. of patents: 57
Last issue date: 04/02/2002


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NumberTitleIssue Date
6363705METHOD FOR JOINING FIBERS ONTO THE FREE ENDS OF TWO THREADS OF A YARN PRODUCED BY AN INTEGRATED OPEN END SPINNING AND TWISTING PROCESS AND A TWO-FOR-ONE SPINNING AND TWISTING APPARATUS FOR PERFORMING THE METHOD
A method for spinning fibers onto the free ends of the two threads of a yarn that is produced during an integrated spinning and twisting process and a two-for-one spinning and twisting apparatus for performing the method are provided. The method includes ...
04/02/2002
6311468Device for producing a twisted yarn by an integrated spinning and twisting process as well as fiber feed tube
A device for producing a twisted yarn by an integrated or combined spinning and twisting process is provided and comprises a two-for-one twisting spindle with at least two spinning rotors, positioned within the yarn balloon produced by the twisting proces...
11/06/2001
6272829Individual-spindle-drive type multiple twister
In an individual-spindle-drive type multiple twister that directly employs separate motors to drive the spindle shafts of each twisting unit, when a spindle is inserted into the housing during motor assembly, a rotor and a stator may attract each other an...
08/14/2001
6065277Process for producing dyed spun cotton yarns having improved uniformity, physical properties, and luster and yarns thus produced
A process for producing dyed spun cotton yarns having a reduced number of irregularities and increased luster is described. The process involves dyeing at least a portion of the cotton fibers which are to form the yarn, then combing the dyed fibers subseq...
05/23/2000
6052985Device for producing a twisted yarn in a combined spinning and twisting process
A device for producing a twisted yarn in a combined spinning and twisting process has two open end spinning rotors positioned in a stationary protective pot, a hollow spindle axle into which the spun yarns produced by the spinning rotors are introduced, a...
04/25/2000
5964083Method for producing a twisted yarn in a combined spinning and twisting process
A method for manufacturing a twisted yarn by a combined spinning and twisting process includes the steps of producing in at least two spinning devices individual spun yarns and guiding the spun yarns together to a first centering location positioned coaxi...
10/12/1999
5890356Open-end fiber veil spinning apparatus and method
In a process for open-end spinning at least one sliver is opened to single fibers, which form a fiber veil. The single fibers are fed to a rotating collecting surface which is driven transversely to their travel direction, and are withdrawn from the colle...
04/06/1999
5763076Soft node air entangled yarn and method of production
Described are a multifilamentary yarn composed of a plurality of periodically interlaced synthetic polymeric filaments which is characterized by regular node spacing and a yarn harshness of less than about 100 and an apparatus and process for making the s...
06/09/1998
5640838Apparatus and method for effecting yarn piecing on an open-end rotor spinning machine
In preparation of the piecing process in an open-end rotor spinning device, negative pressure is first applied in a housing containing the spinning rotor, and the rotor cover is brought from its operating position into a fiber evacuation position in which...
06/24/1997
5632140Method and device for directly manufacturing a twisted yarn from dissolved fiber material
In a method for manufacturing a twisted yarn a spindle rotor is positioned in a stationary cylinder housing. At least two spinning devices are supported in a receiving chamber of the spindle rotor such that the spinning devices are located adjacent to one...
05/27/1997
5628177Method and device for manufacturing a twisted yarn in an integrated spin-twisting process according to the two-for-one twisting method from dissolved fiber material
In a method for manufacturing a twisted yarn by an integrated spinning-twisting process a vacuum is generated within the spindle rotor. Individual staple fibers are fed by vacuum to at least two rotor spinning devices positioned within the spindle rotor i...
05/13/1997
5626011Method for joining a thread in a device for manufacturing a twisted yarn by an integrated spinning and twisting process as well as a device for performing the method
In a method for joining a thread a spindle rotor with hollow spindle shaft is rotatably supported on a machine frame. A radially outwardly extending yarn guide channel is connected to the hollow spindle shaft. Two spinning devices with upwardly open spinn...
05/06/1997
5605037Method and device for producing a twisted yarn
A device for producing a twisted yarn has a spindle rotor with a hollow spindle axle connected to a vacuum source and also has a vacuum chamber connected to the hollow spindle axle. A fiber-dissolving device for producing individual staple fibers is provi...
02/25/1997
5535580Process and device for piecing on an open-end spinning device
A process and device for piecing in an open-end spinning device includes switching on a fiber feeding device for a predetermined period of time so that fibers which are undesired for piecing are combed out of the leading end of the fiber sliver which is p...
07/16/1996
5509263Method and device for manufacturing a twisted yarn
In a method and device for manufacturing a twisted yarn a spindle rotor having a hollow spindle axle with inlet and outlet and a yarn guide channel extending radially outwardly from the outlet is provided. The yarn exiting the yarn guide channel forms a y...
04/23/1996
5499496Method and device for manufacturing a twisted yarn
In a method of manufacturing a twisted yarn a rotor is rotatably supported on a machine frame. A yarn guide channel extends radially within the rotor over at least a portion of its diameter. A centering eye for the twisted yarn is positioned on the extens...
03/19/1996
5497610Process and device for pneumatic feeding of fibers to the fiber collection surface of an open-end spinning element
In pneumatic feeding of fibers (20) to the fiber collection surface of an open-end spinning element, the air which circles together with the opener roller (10) and is conveyed past the inlet opening (40) of the fiber feeding channel (4) is fed back to the...
03/12/1996
5479771Method and device for manufacturing a twisted yarn
In a method and apparatus for manufacturing a yarn from fiber material at least two spinning devices arranged adjacent to one another are provided. Fiber material is dissolved and fed to the at least two spinning devices. Each spinning device generates an...
01/02/1996
5423171Method and device for joining yarn in an open-end spinning means
A process for piecing a broken yarn on an open-end spinning device in which the fiber feed to the fiber collection surface, and which has been interrupted during stoppage of the open-end spinning device. The fiber feed is switched back on and is immediate...
06/13/1995
5419952Making slub yarn on open-end machine, and composite fabric
Denim fabric is made from warp yarn which is at least 30% novelty cotton yarn having irregularly spaced effects (e.g. slubs) about one-half inch to two inches in length. The cotton novelty yarn is made by separating cotton sliver into cotton fibers, and a...
05/30/1995
5398492Industrial dust mop
Industrial dust mop having a homogenous yarn composed of high melt staple fibers and low melt staple which has been heated to homogeneously melt the low melt fibers throughout the yarn to form a fused yarn product in the mop....
03/21/1995
5397622Industrial dust mop comprising a blended yarn
Industrial dust mop having a homogenous yarn composed of high melt staple fibers and low melt staple which has been heated to homogeneously melt the low melt fibers throughout the yarn to form a fused yarn product in the mop....
03/14/1995
5396688Making slub yarn on open-end machine
Denim fabric is made from novelty cotton yarn having irregularly spaced irregularities (e.g. slubs) about one-half inch to two inches in length. The cotton novelty yarn is made by separating cotton sliver into cotton fibers, and acting on the cotton fiber...
03/14/1995
5367868Process and device for open-end spinning
During the production of a yarn, and independently of fiber feeding into the spinning element, the air circling together with the opener roller during spinning is removed from the area of the housing which does not convey fibers by an auxiliary air stream...
11/29/1994
5331798Method and device for joining yarn in an open-end spinning means
A process for piecing a broken yarn on an open-end spinning device in which the fiber feed to the fiber collection surface, and which has been interrupted during stoppage of the open-end spinning device. The fiber feed is switched back on and is immediate...
07/26/1994
5222352Process and an arrangement for spinning staple fibers into a yarn
A process and an arrangement for the spinning of staple fibers into a yarn is disclosed in which sliver-shaped fiber material is opened up into individual fibers which are fed to a collecting surface which moves at a speed which corresponds to at least th...
06/29/1993
5056200Apparatus for making novel textured yarn
A novel yarn is a bundle of multifilament continuous supply yarns with two sequentially alternating lengths in a preselected ratio. The first length has alternating sections of entangled filaments and unentangled, crimped filaments alternating in closely,...
10/15/1991
4854118Methof of, and apparatus for, producing a friction spun yarn
The method of, and apparatus for, producing a yarn uses a friction spinning device comprising a perforated first friction spinning drum and a second friction spinning drum which can also be perforated. Two fiber feed passages project to the first friction...
08/08/1989
4845946Method of producing mottled rotor spun yarn
A mottled appearing yarn having a main strand of fibers and wrapper fibers of different color than the main strand. The yarn is produced by feeding longer and coaser fibers with shorter and finer fibers in an open end rotor spinning machine and controllin...
07/11/1989
4838018Process and device to start a new staple fiber sliver automatically
For the starting of slivers at a textile machine, two staple fiber slivers are individually inserted into two guides. The first guide assumes a feeding position and guides the staple fiber sliver being fed into a feeding device. The second guide holds the...
06/13/1989
4773209Method of and apparatus for producing a friction spun yarn
The method of, and apparatus for, producing a yarn uses a friction spinning device comprising a perforated first friction spinning drum and a second friction spinning drum which can also be perforated. Two fiber feed passages project to the first friction...
09/27/1988
4753066Method of and apparatus for producing a yarn
The method of, and apparatus for, producing a yarn using a friction spinning device comprising a perforated first friction spinning drum and a second friction spinning drum which can also be perforated. Two fiber feed passages project to the first frictio...
06/28/1988
4729214Combined carpet yarns by open end rotor spinning
A method of manufacturing a combined yarn which includes feeding staple fibers to the collection groove of an open-end spinning rotor, twisting the staple fibers into a staple fiber yarn, combining the staple fiber yarn with a continuous filament yarn whi...
03/08/1988
4698962Process and device for the production of a fancy yarn on open-end spinning devices
When producing fancy yarn on open-end spinning devices, sliver-like basic fiber material is opened into individual fibers and is fed in an air stream to an open-end spinning element. A fiber sliver of the fancy-effect fiber material is conveyed at constan...
10/13/1987
4672800Process and apparatus for making a yarn
In the making of a yarn, a stream of drawn core fibers (17a) is twisted in a triangular twisting space (4) between two juxtaposed, closely spaced apart twisting drums (1, 2), which are rotated in the same sense, and covering fibers are wound about said st...
06/16/1987
4574572Apparatus for making a yarn
Apparatus for making a yarn comprises a device which succeeds a drawing frame and serves to twist a drawn roving and to wind covering fibers around the drawn roving, and means for supplying the covering fibers. In order to ensure that the covering fibers ...
03/11/1986
4573312Friction spinning apparatus
A friction spinning apparatus, includes oppositely-disposed, rotationally-symmetrical friction elements rotating in the same direction, the friction elements having perforated casings defining a line of closest mutual approach between the casings and two ...
03/04/1986
4570434Fiber feed arrangement for open-end friction spinning
A method and apparatus for open-end friction spinning is disclosed having two adjacently arranged friction rollers, driven in the same rotational direction and forming a wedge-shaped gap therebetween. A suction device effective in the area of the gap as w...
02/18/1986
4569192Apparatus for producing special yarns
An apparatus for producing special yarn made of a fiber strand in which a number of fibers are randomly arranged along the lengthwise direction thereof, in which special yarn at least one of the yarn structural parameters, e.g., yarn count number or numbe...
02/11/1986
4567722Fiber feed arrangement for open-end friction spinning machines
A fiber feed arrangement for an open-end friction spinning machines is disclosed. The fiber distribution zone in the wedge-shaped yarn forming gap formed by the friction rollers is configured in its size and/or its location relative to the friction roller...
02/04/1986
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