With Doubling Patents (Class 19/243)
  • Patent number: 10287714
    Abstract: A process is described wherein pile yarn is woven with cotton weft and warp yarns to produce terry fabrics, such as towels. The fabric is then washed in warm water to dissolve the PVA fibers. The amount of fibers dissolved, depends upon the count of the yarn or yarns used. By dissolving the PVA fibers, a hollow air space is produced throughout the pile yarn, corresponding to an increase in the air space in the pile yarn. By increasing the air space in the pile yarn, the resulting towels are softer and bulkier than standard cotton towels. The present invention further relates to pile yarn in terry woven fabric (warp yarn), or weft yarn, in the case of flat fabrics.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: May 14, 2019
    Assignee: WELSPUN INDIA LIMITED
    Inventor: Rajesh R. Mandawewala
  • Patent number: 9677202
    Abstract: A process is described wherein pile yarn is woven with cotton weft and warp yarns to produce terry fabrics, such as towels. The fabric is then washed in warm water to dissolve the PVA fibers. The amount of fibers dissolved, depends upon the count of the yarn or yarns used. By dissolving the PVA fibers, a hollow air space is produced throughout the pile yarn, corresponding to an increase in the air space in the pile yarn. By increasing the air space in the pile yarn, the resulting towels are softer and bulkier than standard cotton towels. The present invention further relates to pile yarn in terry woven fabric (warp yarn), or weft yarn, in the case of flat fabrics.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: June 13, 2017
    Assignee: WELSPUN INDIA LIMITED
    Inventor: Rajesh R. Mandawewala
  • Patent number: 9677205
    Abstract: A process is described wherein pile yarn is woven with cotton weft and warp yarns to produce terry fabrics, such as towels. The fabric is then washed in warm water to dissolve the PVA fibers. The amount of fibers dissolved, depends upon the count of the yarn or yarns used. By dissolving the PVA fibers, a hollow air space is produced throughout the pile yarn, corresponding to an increase in the air space in the pile yarn. By increasing the air space in the pile yarn, the resulting towels are softer and bulkier than standard cotton towels. The present invention further relates to pile yarn in terry woven fabric (warp yarn), or weft yarn, in the case of flat fabrics.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: June 13, 2017
    Assignee: WELSPUN INDIA LIMITED
    Inventor: Rajesh R. Mandawewala
  • Patent number: 9677201
    Abstract: A process is described wherein pile yarn is woven with cotton weft and warp yarns to produce terry fabrics, such as towels. The fabric is then washed in warm water to dissolve the PVA fiber. The amount of fibers dissolved, depends upon the count of the yarn or yarns used. By dissolving the PVA fibers, a hollow air space is produced throughout the pile yarn, corresponding to an increase in the air space in the pile yarn. By increasing the in space in the pile yarn, the resulting towels are softer and bulkier than standard cotton towels. The present invention further relates to pile yarn in terry woven fabric (warp yarn), or weft yarn, in the case of flat fabrics.
    Type: Grant
    Filed: May 10, 2014
    Date of Patent: June 13, 2017
    Assignee: WELSPUN INDIA LIMITED
    Inventor: Rajesh R. Mandawewala
  • Publication number: 20090094793
    Abstract: A drafting assembly for drafting a fibre web having upper and lower rear apron loops which have first and second support surfaces respectively being arranged to grip the card web fibres between them and transport the card web fibres from a rear entrance to a rear nip point on displacement of the rear aprons. Upper and lower front apron loops have third and fourth support surfaces, respectively, being arranged to grip the card web fibres between them and transport the card web fibres from a front nip point to an exit on displacement of the front aprons. The front and rear nip points are adjacent and arranged such that the front nip point receives card web fibres which exit the rear nip point. Proximate to the nip point, each loop is wedge shaped with the arms of the loop on each side of the nip point converging towards nip point and having an acute angle therebetween.
    Type: Application
    Filed: November 10, 2005
    Publication date: April 16, 2009
    Applicant: SUPER SPINNING MILLS LIMITED
    Inventor: Cherian Iype
  • Publication number: 20040074053
    Abstract: The invention is directed a method and system for forming a layer of blended fibers into a continuous web. In one aspect, the apparatus includes blending apparatus for blending first and second fibers. The blended fibers are conveyed to a fiber collection station. A collecting and feeding apparatus at the fiber collection station has a feed chute that receives the blended fibers and an outlet for discharging the fibers. An accumulation chute between the inlet and outlet accumulates a column of the blended fibers. Fibers from the column are fed through the outlet as an initial layer of blended fibers to a forming station. A fiberizing apparatus at the forming station breaks up the initial layer into individual fibers. The individual fibers are deposited on a reforming conveyor as a reformed layer of blended fibers. The layer of blended fibers can be used in making absorbent pads, such as feminine protection pads.
    Type: Application
    Filed: October 16, 2002
    Publication date: April 22, 2004
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: James J. Hlaban, Scott D. Dobslaw, Daniel J. Heuer, Michael K. Lewis, Stephen L. Nunn, Thomas P. Keenan, Richard W. Kubalek, Dale J. Fischer, Moshe Saraf
  • Publication number: 20040074052
    Abstract: The invention is directed to method and apparatus for blending fibers. In one aspect, the apparatus comprises blending apparatus for blending fibers of different materials, at least one of which is absorbent, and for conveying the blended fibers to a fiber collection station. A first weighing apparatus weighs out a first quantity of first fibers at a first weigh station. A second weighing apparatus weighs out a quantity of second fibers at a second weigh station. The first and second quantities of fibers are conveyed to a blend opener having a beater roll rotatable in the blend opener. The beater roll opens and mixes the fibers. The fibers are entrained in an air stream by a pneumatic conveyor system and conveyed to a fine opener. The fine opener has a rotatable clothing roll to further open and mix the fibers. The pneumatic conveyor system is operable to separate fiber fines from longer fibers and to deliver the longer fibers to said fine opener.
    Type: Application
    Filed: October 16, 2002
    Publication date: April 22, 2004
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: James J. Hlaban, Scott D. Dobslaw, Daniel J. Heuer, Michael K. Lewis, Stephen L. Nunn, Thomas P. Keenan, Richard W. Kubalek, Dale J. Fischer, Moshe Saraf
  • Patent number: 6012277
    Abstract: A yarn is spun by dividing a traveling fiber assembly into a plurality of fiber sub-assemblies, causing the sub-assemblies to traverse different paths and then recombining them, wherein the paths are sufficiently proximate for fibers to continuously transfer from one or more of the sub-assemblies and be drawn onto or into another or other sub-assemblies. Also disclosed is a method for forming a yarn comprising twisting a plurality of fiber sub-assemblies together at a convergence point to form a fiber assembly being a yarn, and further including cyclically altering the relative twist propagation in and/or into the sub-assemblies upstream of the convergence point. Still further disclosed are alternative methods involving cyclic variation of paths traversed by the sub-assemblies, and cyclic alteration of the relative positions of the sub-assemblies. Apparatus is described for carrying out each method.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: January 11, 2000
    Assignee: Commonwealth Scientific & Industrial Research Organisation
    Inventors: Martin Willem Prins, Peter Ronald Lamb, Geoffrey Robert Stewart Naylor, Xiaoming Tao
  • Patent number: 5943740
    Abstract: The invention relates to an apparatus for forming a sliver with a first regulated drafting arrangement (10) with several pairs of rollers (11, 12, 14) for the regulated drafting of the fibre mass (8) supplied to the drafting arrangement, with the fibre fleece (28) delivered by the drafting arrangement being joined and supplied to a measuring member (32) from where the measured fibre material is thereafter supplied to a second drafting arrangement (40) and with the autoleveller device (35, 52, 21) of the first drafting arrangement (10) intervening in a regulating manner in the drive of the first drafting arrangement (40) in order to compensate fluctuations in mass on the basis of the signals issued by the measuring member (32) by including a predetermined setpoint value.Various regulating and control devices are known in practice in order to obtain a high-quality sliver.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: August 31, 1999
    Assignee: Rieter Machine Works, Ltd.
    Inventors: Walter Slavik, Gerd Gschliesser, Viktor Pietrini, Thomas Sigrist, Roland Fischer
  • Patent number: 5535488
    Abstract: A system for spinning is provided where a pair of carding machines are arranged side by side. A first drawn sliver is produced by feeding two carded slivers simultaneously into a sliver collector and a drafting system. The drafting system includes a pair of linear density sensors disposed at the inlet and outlet thereof and coupled to a control system for controlling the draft ratio of a first drafting zone to maintain the inlet and outlet linear density at a predetermined value.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: July 16, 1996
    Assignee: China Textile Institute
    Inventors: Shin-Chuan Yao, Hsin-Hsiung Chiou, Ching-Tang Huang, Chin-Jung Hung
  • Patent number: 5400476
    Abstract: The present invention provides a drafting apparatus and method having a plurality of pairs of rollers which pairs are each driven in the same rotational direction and have silver contact points oriented along a common straight line. Sliver is fed to the primary rollers through a trumpet guide connected to a strain gage to determine the size of incoming silver and adjust the draft ratio accordingly to equalize the output silver weight. A silver presence and position detecting device operative on a reflected signal is provided adjacent the output of silver, which sends a signal through a computer to adjust the speed of the silver take up apparatus.
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: March 28, 1995
    Assignee: Myrick-White, Inc.
    Inventor: Homer S. White
  • Patent number: 5161284
    Abstract: A sliver drafting apparatus has a pre-drafting mechanism which simultaneously receives a plurality of running slivers, and includes first and second pairs of drafting rolls between which the slivers pass. The apparatus further has a gathering element disposed downstream of the pre-drafting mechanism for gathering the slivers into a combined sliver and a first delivery roll pair situated downstream of the gathering element for pulling the combined sliver from the gathering element. The apparatus further includes a main drafting mechanism arranged downstream of the first delivery roll pair for receiving the combined sliver therefrom. The main drafting mechanism includes first and second pairs of drafting rolls between which the combined sliver passes. A sliver trumpet is situated downstream of the main drafting mechanism for receiving the combined sliver therefrom; and a second delivery roll pair is situated downstream of the sliver trumpet for pulling the combined sliver from the sliver trumpet.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: November 10, 1992
    Assignee: Trutzschler GmbH & Co. KG
    Inventor: Ferdinand Leifeld
  • Patent number: 5023976
    Abstract: The invention relates to a feed table for feeding slivers by way of a conveyor to a textile processing machine. The slivers are drawn off from associated spinning cans by way of draw-off devices and placed on the conveyor. In the event of a sliver running out or breaking, reserve slivers are fed in automatically by way of draw-off devices specifically devised for this purpose. The conveyor comprises individual conveyor belts associated with each sliver and each reserve sliver and have a draw-off devices, each conveyor belt being drivable by way of a controllable drive, the conveyor belts being a part of the draw-off devices.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: June 18, 1991
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Urs Meyer, Niklaus Gartenmann, Roland Fischer
  • Patent number: 4924556
    Abstract: A machine for stretch-break converting man-made fibers or fiber slivers, h the machine having one or more distortion zones, one of which can be embodied as a heating zone, and one or more breaking zones, whereby the distortion and breaking zones can be disposed in several superimposed levels. The machine also has a tow-drafting mechanism, as well as a delivery mechanism for stretch-break converted fiber slivers. So that tows having a greater overall weight can be processed, the drafting mechanism is spread out such that a plurality of separate tows can be individually guided parallel to and independently of one another next to and/or above one another. The width of the components of the distortion and breaking zones is greater than 270 mm.
    Type: Grant
    Filed: April 22, 1988
    Date of Patent: May 15, 1990
    Assignee: Seydel Vermogensverwaltungsgesellschaft mit beschrankter Haftung
    Inventor: Konrad Gilhaus
  • Patent number: 4700538
    Abstract: Textile slivers tend to loose their cohesion when travelling over long distances from one piece of storage or processing equipment to another such piece of equipment. This problem is overcome by subjecting the sliver to a false twisting process during its travel, desirably by a pneumatic false twister located immediately adjacent to the sliver-receiving equipment.
    Type: Grant
    Filed: August 15, 1985
    Date of Patent: October 20, 1987
    Assignee: Carding Specialists Ltd
    Inventors: Andre Varga, Henry Cripps
  • Patent number: 4678136
    Abstract: A relatively heavy sliver creel frame is suspended from an overhead support by relatively stiff wires whose angle to the creel in combination with the weight of the creel minimize horizontal creel sway. A pair of additional stabilizing links connect the creel to and cantilever it from a support structure spaced from the floor region over which the creel is suspended.
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: July 7, 1987
    Assignee: Coronet Industries, Inc.
    Inventor: Donald A. Cook
  • Patent number: 4662164
    Abstract: A novel roving, and spun yarn produced from the roving, have a core and a sheath arrangement with substantially 100 percent of a first type of fiber in the sheath, and for a second type of fiber having distinctly different properties than the first fiber, about 75-90 percent in the core and about 25-10 percent in the sheath. Yarns having a cheaper fiber in the center (e.g. polyester) and a more expensive fiber on the outside (e.g. wool), or one having a higher strength core fiber and a more luxurious sheath fiber, can be produced. A sliver of first fibers and a distinct sliver of second fibers are fed in generally parallel paths. The slivers are continuously drafted to produce two distinct drafted slivers, and the path of at least one of the drafted slivers is changed so that the two slivers proceed in intersecting paths, and at substantially the same speed. The first fibers are continuously caused to wrap around the second fibers, with an angle of intersection between the two paths in the range of 60.degree.
    Type: Grant
    Filed: December 26, 1985
    Date of Patent: May 5, 1987
    Assignee: Burlington Industries, Inc.
    Inventor: Elbert F. Morrison
  • Patent number: 4630337
    Abstract: A ribbon lap unit contains support shafts for receiving and supporting a lap, a web transport means in the form of a web drafting mechanism, a web diverter, a diverter plate arrangement and a web collecting element. A web unrolled from the lap is fed through the web drafting mechanism and around the web diverter onto the diverter plate arrangement and thereafter onto the web collecting element. By means of the web diverter it is possible to arrange the diverter plate arrangement beneath the drafting mechanism. This, in turn, enables constructing a very compact machine.
    Type: Grant
    Filed: October 1, 1984
    Date of Patent: December 23, 1986
    Assignee: Rieter Machine Works Limited
    Inventors: Giuseppe Verzilli, Rene Schmid
  • Patent number: 4577372
    Abstract: Each drawing frame of a double drawing frame is provided with a diverting surface so that the transport direction of the infeed slivers removed from the cans to be emptied is arranged substantially at a right angle to the feed direction of these slivers on the sliver infeed of the drawing assembly.The first drawing passage is so close to and parallel to a second drawing passage that the emptied sliver cans are transported on the shortest path into the readiness position of the empty cans of the adjacent drawing passage. The cans filled by the drawing frames can be brought along the shortest path into a reserve row which is located immediately in front and parallel to the row with the cans to be emptied in the next drawing passage.
    Type: Grant
    Filed: June 20, 1984
    Date of Patent: March 25, 1986
    Assignee: Rieter Machine Works, Ltd.
    Inventor: Kurt Roder
  • Patent number: 4470253
    Abstract: A spinning frame of the type having a main drafting zone through which two fiber bands move in spaced parallel relation for subsequent twisting into a single yarn is provided with a first pair of rollers located at the entrance to the main drafting zone, a second pair of rollers located at the exit of the main drafting zone, a pair of endless leather tapes extending about a roller in each of the first and second pair of rollers, and a third pair of rollers for delivering two fiber bands from the main drafting zone to a suitable twisting device.
    Type: Grant
    Filed: January 12, 1982
    Date of Patent: September 11, 1984
    Assignee: Firma Zinser Textilmaschinen GmbH
    Inventors: Gunter Schulz, Friedrich Dinkelmann, Konrad Klein, Roland Emberger
  • Patent number: 4369622
    Abstract: A method is disclosed for drawing and blending textile fiber and conductive metal filaments. The method is characterized by feeding at least one bundle of a first textile material through draw rollers of a drawing frame, unwinding at least one roll of a bundle of second material in the form of conductive fibers adjacent the first pair of rollers of the drawing frame, feeding the conductive fiber bundle into the back rollers of the drawing frame simultaneously with the textile material fiber bundle, and guiding the textile material fiber bundle and the conductive fiber bundle relative to each other such that the latter continuously cushions the textile material fiber bundle with respect to the draw rollers when passing therethrough.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: January 25, 1983
    Assignee: Riegel Textile Corporation
    Inventors: Richard K. Teed, Arther M. Pressley
  • Patent number: 4112548
    Abstract: A machine for blending, matting, shortening or sizing natural or artificial fibers, in which the work is performed by groups or trains of three rollers. A first working stage has a single head delivering two slivers and in which the twin bearing rollers are of large size, the two slivers emerging from the single head being fed axially or perpendicularly by directional and juxtaposing members towards a second working stage in a single lap, the width of which is at least 50% less than the width of an individual sliver. The second working stage has a reducing head which comprises a plurality of trains with twin lower retaining and traction rollers, respectively, mounted overhung on frames, adjustably spaced from one another.
    Type: Grant
    Filed: September 22, 1976
    Date of Patent: September 12, 1978
    Inventor: Joseph Sauvage
  • Patent number: 4016629
    Abstract: This invention relates to an apparatus and method for improving the homogeneity of textile fibers which are blended together in a textile drawing machine. Vertical posts are critically aligned with corresponding angled rods which are spaced between a pair of drafting rolls thus substantially forming a guide mechanism which allows for alternating silver of cotton and synthetic fibers to be placed one on the top of the other and drafted together thereby achieving a more uniform and homogeneous blend.
    Type: Grant
    Filed: May 22, 1975
    Date of Patent: April 12, 1977
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Roger S. Brown, Charles L. Shepard, Laurey J. Richard
  • Patent number: 3994046
    Abstract: Prearranged ribbons of fiber leaving the front drafting roll are superimposed into layers by a composite sliver forming assembly before entering a trumpet. The composite sliver forming assembly consists of tubular guides extending at an angle from the front drafting roller to the trumpet entrance. The tubes are designed with a flat bottom to support the sliver, allowing for overlapping at the tube exit, and to achieve an exact ribbon exit 90.degree. downward into the trumpet entrance where the layered ribbons are combined into a composite sliver.
    Type: Grant
    Filed: August 14, 1975
    Date of Patent: November 30, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Roger S. Brown, Charles L. Shepard, Laurey J. Richard
  • Patent number: 3952372
    Abstract: An unpredictable random distribution of segments of supplemental strands of fiber are produced in a base strand by pulling segments from the supplemental strands and adding them to the base strand. The segments are pulled from free extents of the supplemental strands that have a free length longer than the length of the fibers of the supplemental strands, and the supplemental strands advance slower than the base strand, with the result that the size and occurrence of the pulled segments in the base strand are unpredictably random. Preferably, a draw frame is used, to which is added a feed unit having a pair of rotating feed rolls for feeding the supplemental strands to the next-to-last pair of drafting rolls that have a surface speed greater than the feed rolls and are spaced therefrom a distance greater than the length of fibers in the supplemental strands.
    Type: Grant
    Filed: June 3, 1974
    Date of Patent: April 27, 1976
    Assignees: Holt Williamson Mfg. Co., Davant Yarns, Inc.
    Inventor: Robert Lewis Howell, Jr.