Flats Patents (Class 19/113)
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Patent number: 10988863Abstract: A card wire has consecutive teeth spaced apart in the longitudinal direction by a pitch. The teeth are bounded in the longitudinal direction by a tooth face on a first side and by a tooth back on a second side. Looking downwards in the height direction of the card wire, the tooth face and the tooth back of consecutive teeth merge in a tooth base and, looking upwards in the height direction, form a tooth tip. The tooth depth is defined by the greatest distance, in the height direction of the card wire, from the tooth tip to the tooth base. The ratio of pitch to tooth depth is less than 1.1. An interspace, measured at right angles to a tangent to an inflection point between tooth back and tooth base, between this inflection point and the opposite tooth face is greater than a quarter of the pitch.Type: GrantFiled: October 19, 2018Date of Patent: April 27, 2021Assignee: Groz-Beckert KGInventors: Peter Heißel, Stefan Lohrmann
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Patent number: 10145031Abstract: A card clothing wire (1) for use on drums in cards has a root (2) and a blade (3) having an overall height of the wire (h1) of 1.5 mm to 5 mm. The blade (3) is provided with teeth (4) having a tooth depth (h6) of 0.35 mm to 1.0 mm, and having a tooth pitch (p) of 1.5 mm to 3 mm. The teeth (4) have a tip surface (7), a back surface (8) having a back angle (?), and a tooth face surface. The back angle (?) is 40° to 20° and each tooth (4) has a first tip (5) and a second tip (6) and the tip surface (7) has at least one elevation (9).Type: GrantFiled: March 24, 2016Date of Patent: December 4, 2018Assignee: Graf + Cie AGInventor: Willy Grob
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Patent number: 8516670Abstract: A method and a device for drawing off a clothing strip from a card-flat bar are presented. A clothing strip held on the card-flat bar by fastening means in the form of clips or clamps is released form the card-flat bar with the aid of a device resulting in at least partial opening of the fastening means. The device has a bearing face and a retainer for bearing on the card-flat bar or on the clip and has a spike for the at least partial opening of the clip.Type: GrantFiled: November 28, 2007Date of Patent: August 27, 2013Assignee: Maschinenfabrik Rieter AGInventor: Hans-Peter Schatzmann
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Patent number: 8186020Abstract: A method for fastening a clothing strip to a card-flat bar by a fastening means in the form of clips is presented. In this case, the clips are integrally formed onto the card-flat foot by press rams guided simultaneously from both sides of the card-flat bar and parallel to the plane of the clothing strip. The clip is integrally formed onto the card-flat foot and loops around the latter with a looping angle of less than 90° and more than 30°. A corresponding tool for carrying out the method and also a revolving card flat are likewise proposed.Type: GrantFiled: November 28, 2007Date of Patent: May 29, 2012Assignee: Maschinenfabrik Rieter AGInventor: Hans-Peter Schatzmann
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Patent number: 8127403Abstract: In a card flat bar having a card flat clothing, the card flat clothing is magnetically attached to the card flat bar body and, in use, lies opposite a clothed roller. In order to hold the clothing element against the card flat bar in a structurally simple way in the event of an increase in force on the clothing, especially to prevent the card flat clothing from making contact with the cylinder clothing, and to allow quick replacement of the card flat clothing strip, on the fibre material inlet side of the card flat clothing—seen in the direction of rotation of the roller—there is associated with the card flat bar a counter-bearing, stop or the like with which a base of the clothing co-operates in the direction towards the cylinder.Type: GrantFiled: February 26, 2010Date of Patent: March 6, 2012Assignee: Truetzschler GmbH & Co. KGInventors: Armin Leder, Andreas Ebenhoeh
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Publication number: 20110203086Abstract: A method and a device for drawing off a clothing strip (6) from a card-flat bar (1) are presented. A clothing strip (6) held on the card-flat bar (1) by fastening means (7) in the form of clips or clamps is released from the card-flat bar with the aid of a device as a result of an at least partial opening of a clip (7). The device has a bearing face (19) and a retainer (14) for bearing on the card-flat bar (1) or on the clip (7) and has a spike (10) for the at least partial opening of a clip (7).Type: ApplicationFiled: November 28, 2007Publication date: August 25, 2011Applicant: MASCHINENFABRIK RIETER AGInventor: Hans-Peter Schatzmann
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Publication number: 20100306965Abstract: A method for fastening a clothing strip (10) to a card-flat bar (21, 31) by a fastening means in the form of clips (25, 35) is presented. In this case, the clips (5, 25, 35) are integrally formed onto the card-flat foot (23, 33) by press rams (12) guided simultaneously from both sides of the card-flat bar (21, 31) and parallel to the plane of the clothing strip (10). The clip (25, 35) integrally formed onto the card-flat foot (23, 33) loops around the latter with a looping angle (?) of less than 90° and more than 30° (degrees of angle). A corresponding tool for carrying out the method and also a revolving card flat are likewise proposed.Type: ApplicationFiled: November 28, 2007Publication date: December 9, 2010Applicant: MASCHINENFABRIK RIETER AGInventor: Hans-Peter Schatzmann
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Publication number: 20100236025Abstract: In a card flat bar having a card flat clothing, the card flat clothing is magnetically attached to the card flat bar body and, in use, lies opposite a clothed roller. In order to hold the clothing element against the card flat bar in a structurally simple way in the event of an increase in force on the clothing, especially to prevent the card flat clothing from making contact with the cylinder clothing, and to allow quick replacement of the card flat clothing strip, on the fibre material inlet side of the card flat clothing—seen in the direction of rotation of the roller—there is associated with the card flat bar a counter-bearing, stop or the like with which a base of the clothing co-operates in the direction towards the cylinder.Type: ApplicationFiled: February 26, 2010Publication date: September 23, 2010Applicant: Truetzschler Gmbh & Co., KGInventors: Armin Leder, Andreas Ebenhöh
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Patent number: 7665188Abstract: In an apparatus on a carding machine for cotton, synthetic fibers and the like, in which at least one flat bar with a flat clothing is present, in which a clothing strip having a flat clothing, preferably wire hooks, arranged in a strip-form support element, is secured to a support body of the flat bar and lies opposite the clothing of a roller, e.g. the cylinder, the spacing between a surface defined by the tips of the flat clothing and the tip circle of the cylinder clothing decreases in the direction of rotation of the cylinder. In order to be able to alter and adapt the angle (offset) in a simple manner in terms of mechanical engineering, the top face, of the clothing strip and the tip surface of the flat clothing are not aligned parallel with one another.Type: GrantFiled: February 14, 2007Date of Patent: February 23, 2010Assignee: Trützschler GmbH & Co. KGInventor: Thomas Landmesser
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Publication number: 20090288273Abstract: A carding-flat bar for a card includes a base body and is provided with a card clothing and at least one fixing device for the card clothing. The fixing device for the card clothing is formed by a clamping rail, which can be released in a non-destructive manner.Type: ApplicationFiled: May 19, 2009Publication date: November 26, 2009Applicant: Graf & Cie AGInventor: Willy GROB
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Publication number: 20090265892Abstract: A fixing device fixes toothed elements to a component of a textile machine. The component of the textile machine can be either a top comb, a circular comb or a card flat. The fixing device includes a stationary bearing surface for the toothed elements and a flexible spring leg for pressing the toothed elements to the bearing surface by use of a holding force. The fixing device includes a device for neutralizing the holding force of the spring leg.Type: ApplicationFiled: April 8, 2009Publication date: October 29, 2009Applicant: Graf & Cie AGInventor: Urs Mueller
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Patent number: 7587792Abstract: In an apparatus at a flat card for cotton, synthetic fibres and the like, wherein at least one stationary carding element comprising a carrying element with at least one clothing element is associated with a clothed roller, for example a cylinder, the tips of the clothing elements and the tips of the clothing of the roller lie opposite one another with a spacing and the carrying element has a hollow space. In order for the carrying element to be dimensionally stable in operation even when exposed to heat, the cross-sectional shape of the carrying element does not include an enclosed hollow space, and the opening is arranged in a region remote from the tips of the clothing element.Type: GrantFiled: December 14, 2006Date of Patent: September 15, 2009Assignee: Truetzschler GmbH & Co. KGInventor: Thomas Schmitz
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Patent number: 7559122Abstract: A method is proposed for fixing a clothing strip on a base surface of a flat rod by means of at least one clothing clip which comprises a first terminal section for attachment to the flat rod and a second terminal section for attachment to the clothing strip. The method is characterised in that a central section of the at least one clothing provided between the first and the second terminal section is deformed directly before or after the clothing clip has been placed against the flat rod. A corresponding clothing clip and a corresponding pressing tool are furthermore proposed.Type: GrantFiled: October 11, 2005Date of Patent: July 14, 2009Inventors: Hans-Peter Schatzmann, Jürg Ott
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Publication number: 20090151127Abstract: In an apparatus at a carding machine for cotton, synthetic fibres and the like, wherein at least one card flat having a card flat clothing is present, the card flat clothing is attached to the card flat, and the clothing is located opposite a roller, for example the cylinder, and an attaching means is present between the card flat and the card flat clothing. In order to make possible, in simple manner, a dimensionally stable clothed card flat and simpler and faster re-clothing (clothing replacement), at least one hook-and-loop closure is present between the card flat and those regions of the card flat clothing which face the card flat.Type: ApplicationFiled: December 3, 2008Publication date: June 18, 2009Applicant: Truetzschler GmbH & Co. KGInventors: Armin Leder, Hans Rosemann
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Publication number: 20080307611Abstract: A method is proposed for fixing a clothing strip (10) on a base surface of a flat rod (1) by means of at least one clothing clip (20; 120; 120?) which comprises a first terminal section (21; 121; 121?) for attachment to the flat rod (1) and a second terminal section (22; 122; 122?) for attachment to the clothing strip (10). The method is characterised in that a central section (23; 123; 123?) of the at least one clothing clip (20; 120; 120?) provided between the first and the second terminal section (21, 22; 121, 122; 121?, 122?) is deformed directly before or after the clothing clip (20; 120; 120?) has been placed against the flat rod (1). A corresponding clothing clip (20; 120; 120?) and a corresponding pressing tool (30) are furthermore proposed.Type: ApplicationFiled: October 11, 2005Publication date: December 18, 2008Inventors: Hans-Peter Schatzmann, Jurg Ott
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Patent number: 7337500Abstract: A carding machine, includes a carrier element with a clothing support part (card flat heel). Two end head parts are associated with the carrier element. The carrier element and the end head parts form at least three assembled components, and the end head parts comprise at least one sliding-contact region, which is in contact with the slideway, and at least one fixing region, which is fixed to the carrier element and at the same time holds the sliding-contact region. Between the fixing region of the end head part and at least partial regions of the carrier element there is a distance (clearance), and the distance between the lower limit of the sliding contact region and the card flat heel and/or the free tips of the clothing is adjustable and fixable.Type: GrantFiled: October 26, 2004Date of Patent: March 4, 2008Assignee: Truetzschler GmbH & Co. KGInventor: Jürgen Schnitzler
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Patent number: 7076839Abstract: A card top bar for a carding machine, has a carrying member and a releasable clothing portion in which card top bar there are provided two card top heads, each of which slides on a slideway, the card top heads comprise at least one sliding region, which is in contact with the slideway, and at least one fixing region, which is in engagement with the rest of the card top bar and which at the same time holds the sliding region. In order to improve the card top bar, the card top heads are in engagement with the carrier for the clothing.Type: GrantFiled: June 3, 2003Date of Patent: July 18, 2006Assignee: Trützschler GmbH & Co. KGInventors: Michael Schürenkrämer, Armin Leder
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Patent number: 7055221Abstract: A flat end head with a mounting section for the flat rod and at least one sliding surface for progressive movement on a sliding guide of a card is made of a polymer material. The polymer material may be fiber-reinforced. Further, the polymer material may include a solid lubricant. The sliding guide may also be made of a polymer material. An apparatus for replacing a flat end head on a flat rod is also provided.Type: GrantFiled: December 3, 2004Date of Patent: June 6, 2006Assignee: Maschinenfabrik Rieter AGInventor: Peter Gujer
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Patent number: 6766564Abstract: A device is provided for use in a carding machine having a roller with clothing, the device being for arranging opposite the clothing on the roller. The device has a flat bar, a clothing strip, and a rigid support element connected to the clothing strip and having fastening elements. The fastening elements engage the flat bar and exert pressure on the flat bar.Type: GrantFiled: March 19, 2003Date of Patent: July 27, 2004Assignee: Trützschler GmbH & Co. KGInventor: Gerd Pferdmenges
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Patent number: 6748628Abstract: A drive belt assembly for a revolving flat card includes a flexible belt. At least a pair of connecting elements are integrally formed with the belt. The connecting elements include a cross-beam with an inclined surface. A locking element is disposed between the pair of connecting elements in order to prevent the connecting elements from approaching one another. The locking element is removable from the pair of connecting elements to allow for the approaching of the connecting elements to one another.Type: GrantFiled: June 20, 2002Date of Patent: June 15, 2004Assignee: Maschinenfabrik Rieter AGInventors: Christian Sauter, Paul Cahannes, Peter Weber
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Patent number: 6745438Abstract: A flat bar is provided for use in a carding machine having a roller with clothing. The flat bar is for arranging opposite the clothing on the roller. The flat bar has a flat bar support body having a recess, a clothing support having a first side, the first side being positioned in the recess, flat bar clothing attached to a second side of the clothing support, the second side being opposite the first side, and at least one fastening element that secures the first side of the clothing support in the recess.Type: GrantFiled: November 13, 2002Date of Patent: June 8, 2004Assignee: Trützschler GmbH & Co. KGInventor: Gerd Pferdmenges
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Patent number: 6704970Abstract: A flat bar assembly is provided for use with a carding machine having a carding cylinder, the carding cylinder having clothing. The assembly has a flat bar, flat bar clothing attached to the flat bar, and an equalizing layer between the flat bar and the flat bar clothing. The flat bar clothing is for positioning opposite the carding cylinder clothing, and the equalizing layer fills a space between the flat bar and the flat bar clothing to compensate for distance differences between the flat bar clothing and the flat bar and to locate the flat bar clothing at a predetermined position relative to the flat bar.Type: GrantFiled: August 15, 2002Date of Patent: March 16, 2004Assignee: Trützschler GmbH & Co. KGInventors: Andreas Ebenhoh, Gerd Pferdmenges, Armin Leder
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Patent number: 6687958Abstract: An arrangement for a carding machine for parallel arrangement of fibers, includes a carding track; a plurality of flat bars arranged for being guided along the carding track; clothing positioned respectively on each flat bar, the clothing including clothing structure that engages in the fibers; and a mechanism for releaseably fastening the clothing to each flat bar.Type: GrantFiled: April 29, 2002Date of Patent: February 10, 2004Assignee: Hollingsworth GmbHInventor: Gerhard Wurst
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Publication number: 20030070261Abstract: A flat bar is provided for use in a carding machine having a roller with clothing. The flat bar is for arranging opposite the clothing on the roller. The flat bar has a flat bar support body having a recess, a clothing support having a first side, the first side being positioned in the recess, flat bar clothing attached to a second side of the clothing support, the second side being opposite the first side, and at least one fastening element that secures the first side of the clothing support in the recess.Type: ApplicationFiled: November 13, 2002Publication date: April 17, 2003Inventor: Gerd Pferdmenges
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Publication number: 20020088093Abstract: A method and an apparatus for adjusting the working gap between the points of the flat clothings and the points of the cylinder clothings of a carding machine, with the flat rods provided with clothings being guided over a partial zone of the cylinder circumference on either side of the carding machine on respective convexly arched sliding guides, and the flat rods are provided with flat heads comprising sliding surfaces, which flat heads slide along the sliding guides, is characterized in that the adjustment of the working gap is performed by changing the radial height of the sliding surfaces of the flat heads with respect to the points of the respective flat clothing.Type: ApplicationFiled: September 20, 2001Publication date: July 11, 2002Applicant: MASCHINENFABRIK RIETER AGInventors: Olivier Wust, Rene Schmid, Christoph Staheli, Gotz Theodor Gresser, Christian Sauter, Jurg Faas
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Patent number: 6408488Abstract: A fiber processing machine includes a roll having a circumferential surface provided with a first clothing having clothing points; a counter member having a surface provided with a second clothing cooperating with the first clothing and having clothing points; and a device for setting a clearance between the clothing points of the first and second clothings. The device includes an arrangement for approaching the roll and the counter member to one another until the clothing points of the first and second clothings contact and for moving away the roll and the counter member from one another until the clothing points of the first and second clothings assume a desired clearance. The device further has an arrangement for emitting a signal when the clothing points of the first and second clothings contact one another.Type: GrantFiled: October 25, 2001Date of Patent: June 25, 2002Assignee: Trützschler GmbH & Co. KGInventors: Armin Leder, Jürgen März
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Publication number: 20020050027Abstract: A fiber processing machine includes a roll having a circumferential surface provided with a first clothing having clothing points; a counter member having a surface provided with a second clothing cooperating with the first clothing and having clothing points; and a device for setting a clearance between the clothing points of the first and second clothings. The device includes an arrangement for approaching the roll and the counter member to one another until the clothing points of the first and second clothings contact and for moving away the roll and the counter member from one another until the clothing points of the first and second clothings assume a desired clearance. The device further has an arrangement for emitting a signal when the clothing points of the first and second clothings contact one another.Type: ApplicationFiled: October 25, 2001Publication date: May 2, 2002Inventors: Armin Leder, Jurgen Marz
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Publication number: 20010018781Abstract: An arrangement for a carding machine for parallel arrangement of fibers, includes a carding track; a plurality of flat bars arranged for being guided along the carding track; clothing positioned respectively on each flat bar, the clothing including clothing structure that engages in the fibers; and a mechanism for releaseably fastening the clothing to each flat bar.Type: ApplicationFiled: February 20, 2001Publication date: September 6, 2001Inventor: Gerhard Wurst
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Patent number: 6269522Abstract: A method and apparatus for operating a carding machine having a drum with a drum fitting and a plurality of card flats wherein each card flat is provided with a card flat fitting. A predetermined distance between the drum fitting and the card flat fittings is adjusted by conditioning the running surfaces of the card flats.Type: GrantFiled: November 18, 1999Date of Patent: August 7, 2001Assignee: Graf & Cie AGInventors: Ralph A. Graf, Stefan Geisser
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Patent number: 6219885Abstract: The main drum diameter (D) of a card for short staple carding is reduced. The working width preferentially is enlarged. The main drum (50) can be made from fiber reinforced synthetic material. Notwithstanding its smaller diameter, the new main drum is operated at the same or a somewhat higher circumferential speed (in comparison to a conventional card).Type: GrantFiled: November 12, 1999Date of Patent: April 24, 2001Assignee: Maschinenfabrik Rieter AGInventors: Jürg Faas, Beat Näf, Olivier Wüst, Christian Sauter, Theodor Gresser Götz
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Patent number: 6205620Abstract: A method of producing apparatus for use in fiber processing, and in particular blades for pre-carding flats in a cotton card. The method comprises the steps of providing a body (32) defining a multiplicity of bores (34) extending between rear and front faces thereof, providing a multiplicity of pointed pins (44) of corresponding diameter to the bores, locating the pins (44) in the bores (34) from the rear of the body such that the points extend from the front of the body, and fixing the pins in the body.Type: GrantFiled: February 19, 1999Date of Patent: March 27, 2001Assignee: WM R Stewart & Sons, LTDInventor: Brian David Hogan
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Patent number: 6189184Abstract: A carding machine includes a machine frame; a fiber processing roll carrying a roll clothing and having a rotary axis; and a stationary carding segment including a carrier mounted on the machine frame; and two carding elements affixed to the carrier and arranged serially as viewed circumferentially of the roll. Each carding element has an element clothing for cooperating with the roll clothing. The carding segment further has a mechanism for turning the carding elements as a unit about a turning axis extending parallel to the rotary axis of the roll for adjusting a distance of the element clothings from the roll clothing.Type: GrantFiled: March 5, 1999Date of Patent: February 20, 2001Assignee: Trützschler GmbH & Co. KGInventors: Gerd Pferdmenges, Armin Leder
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Patent number: 6170124Abstract: A card clothing for flats of a card with a carrier element and a plurality of card wires received with at least one received section in the carrier element, wherein each card wire has at least one processing section arranged exposed outside of the carrier element. At least in one of the card wires the received section received in the carrier element has at least the same length as the processing section which is exposed outside of the carrier.Type: GrantFiled: January 12, 2000Date of Patent: January 9, 2001Assignee: Graf + Cie AGInventor: Ralph A. Graf
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Patent number: 6145166Abstract: In a fiber processing machine with a separating edge in which fibers as well as air are guided in a substantially predetermined transporting direction past the edge, trash particles are selectively removed from the fiber/air stream with the help of the edge. The adjustment of a separating element, in particular, the setting of the angular position of a separating surface and/or the penetration depth upstream from the separating surface is linked with an adaptation of the width of the eliminating gap. Also, at least one measure can be taken for eliminating, as far as possible, a pressure drop and/or air turbulences downstream (in the transporting direction) from the edge. Downstream from the edge, a flow pattern as laminar as possible is generated or maintained, respectively.Type: GrantFiled: July 30, 1998Date of Patent: November 14, 2000Assignee: Maschinenfabrik Rieter AGInventors: Rene Waeber, Walter Schlepfer, Beat Naf, Christian Sauter, Jurg Faas
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Patent number: 6138326Abstract: A mote knife for use with a cleaning system including a rotating cylinder which creates a binary air flow while which entrains a fiber web formed of fibers of various fiber lengths about a circular path. A waste removal duct is arranged adjacent the periphery of the cylinder. A mote knife, which includes a contact surface positioned adjacent the periphery of the cylinder, a front edge located a first distance from the periphery of the cylinder, an intermediate edge located a second distance from the periphery of the cylinder and a rear edge located and a third distance from the periphery of the cylinder. A first channel is formed between the periphery and the front and intermediate edges which converges toward the intermediate edge. A second channel is formed between the periphery and the intermediate and rear edges which diverges toward the rear edge. Rotation of the cylinder creates a venturi effect at the intermediate edge which brings the flow of binary air to its greatest velocity.Type: GrantFiled: November 16, 1999Date of Patent: October 31, 2000Inventor: Akiva Pinto
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Patent number: 6101680Abstract: A flat of a revolving flat card is provided with a clothing the points of which are subdivided into groups. The flat preferentially presents an area provided with clothing of a length of more than 1000 mm. The groups each may present a "heel", or a clothing plane each respectively, facing the main drum. The groups can be formed by respective clothing strips (flexible clothing) fastened on a support member to extend in the longitudinal direction thereof, or by saw tooth wire strips (metallic card clothing) arranged side by side and extending in transverse direction of the flat.Type: GrantFiled: August 31, 1998Date of Patent: August 15, 2000Assignee: Maschinenfabrik Rieter AGInventors: Beat Naf, Theodore Gresser Gotz, Jurg Faas
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Patent number: 6101681Abstract: Fixed adjustable carding element for textile fibre carding and opening machines consisting of a support structure which contains and guides in the radial direction a movable element which supports the carding clothing.Type: GrantFiled: March 24, 1999Date of Patent: August 15, 2000Assignee: Marzoli S.p.A.Inventors: Silvano Patelli, Marco Facchinetti, Giovanni Battista Pasini
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Patent number: 6085390Abstract: A fiber processing machine includes a fiber processing roll carrying a roll clothing on a circumferential surface thereof; an operationally substantially stationary carding segment carrying a segment clothing for cooperating with the roll clothing along a circumferential length portion thereof; a strip-supporting component fixedly held on a machine frame and having a supporting surface; and a segment-supporting strip extending circumferentially along the roll and being held on the supporting surface of the strip-supporting component. The segment-supporting strip has an upper surface supporting the carding segment at opposite end portions thereof and a lower surface opposite the upper surface. A radial distance between the clothing points of the segment clothing and the clothing points of the roll clothing is determined and is changeable by the shape and/or the position of the segment-supporting strip.Type: GrantFiled: July 12, 1999Date of Patent: July 11, 2000Assignee: Trutzschler GmbH & Co. KGInventor: Ferdinand Leifeld
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Patent number: 6006511Abstract: For a separating roll, which finds application on an open end spinning machine, the proposal is made that a spiral trim wire be preformed and precoated before the trim wire is installed upon the circumference of the roll. In this way, separating rolls of the most varying materials may be employed since the rolls themselves need not undergo the coating process. Further, the trim wire may be preformed into a spiral before fitting on the separating roll. Moreover, a process for the production of the trim wire is presented. During the process of coating, the preformed spiral windings are held at an axial distance from one another.Type: GrantFiled: February 26, 1998Date of Patent: December 28, 1999Assignee: Rieter Ingolstadt Spinnereimaschinenbau AGInventors: Eberhard Hofmann, Klaus Schoberth, Christian Gobel
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Patent number: 5930869Abstract: The carding distance (KA) between clothings (14, 15) is scanned using an optical device (22, 26) e.g. using a laser beam (24) from the side of the working area. The measuring value thus obtained can be compared to a pre-set target value in such a manner that the distance mentioned can be adjusted. Card with a controllable actuator system (32, 34) for setting the carding gap between the clothing on the main drum and the clothing on the flats, and with a programmable control system (12) which can influence the actuator system. A sensor system (26, 28) measures the carding gap in order to render regulation of the gap possible. The control system obtains, and processes respectively, data connected with the state of the clothing. The control system (12) is programmed in such a manner that regulation is effected as long as the measuring values supplied by the sensor system appear to be "plausible".Type: GrantFiled: March 26, 1997Date of Patent: August 3, 1999Assignee: Machinenfabrik Rieter AGInventors: Jurg Faas, Christian Sauter
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Patent number: 5749126Abstract: A carding flat and a system for guiding and driving it in a card with moving flats driven by toothed belts, in which coupling between the flats and belts is achieved by a form fit between cavities and projections without fixed retention means, so enabling these elements to freely rotate about the coupling axis.Type: GrantFiled: March 3, 1997Date of Patent: May 12, 1998Assignee: F.LLI Marzoli & C. S.p.A.Inventors: Silvano Patelli, Antonio Cossandi, Giovanni Battista Pasini
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Patent number: 5745955Abstract: A sliding flat formed from section bars for a card with moving flats driven by toothed drive belts, with upper return guides for the flats. The flats are provided in their ends with pins for cylindrical coupling with the toothed belts, said coupling pins projecting from the toothed belt such that it is they which rest on the return guides instead of the teeth of the toothed belt.Type: GrantFiled: March 3, 1997Date of Patent: May 5, 1998Assignee: F.LLI Marzoli & C. S.p.A.Inventors: Silvano Patelli, Antonio Cossandi, Giovanni Battista Pasini
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Patent number: 5685047Abstract: An apparatus for precisely orienting working elements, such as carding elements, to a rotating fiber-opening roller, such as a licker-in, with regard to both distancing and centering without necessitating complex adjustment mechanisms. The working element is precisely positioned by virtue of respective abutting engagement surfaces of the axle boxes or roller retainers and the carrier of the working elements.Type: GrantFiled: October 5, 1995Date of Patent: November 11, 1997Assignee: Maschinenfabrik Rieter AGInventors: Robert Demuth, Beat Naef, Werner Hirschle, Lars Weisigk
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Patent number: 5581848Abstract: The invention is directed to saw tooth fittings for preparatory textile machines including combing machines for wool or cotton wool and carding machines. The saw tooth fittings can be strips or saw tooth elements having a tooth or a plurality teeth including a first tip at a free end of either the tooth or each of the plurality of teeth. The tooth or each of the plurality of teeth have a forwarding combing edge which is concavely curved at least from a foot portion to a second tip of either the tooth or each of the plurality of teeth. The second tip is located between the first tip and the foot portion. The second tip extends forwardly from the combing front edge in the direction of combing thereby improving the combing effect.Type: GrantFiled: September 19, 1995Date of Patent: December 10, 1996Assignee: Staedtler & UhlInventor: Josef Egerer
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Patent number: 5542154Abstract: Improved connection between a revolving flat card and a drive belt. A connection between a flat rod of a revolving flat card and a flexible drive belt for the flat rods, having a flexible connecting element formed integrally with the drive belt and the connecting element being received directly in a part of the flat rod, for forming a snap-on connection, with the drive belt being arranged on a side opposite of the flat rod and including a flexible projection, with the projection being adapted for a frictional engagement, in a clampable manner, with a respective receiving element located at the ends of the flat rod.Type: GrantFiled: June 2, 1994Date of Patent: August 6, 1996Assignee: Maschinenfabrik Rieter AGInventors: Robert Demuth, Jurg Faas, Paul Cahannes
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Patent number: 5473795Abstract: A flat bar for a travelling flats assembly of a carding machine includes a carrier body having opposite end faces spaced from one another parallel to a longitudinal axis of the carrier body; and a flat bar end adjoining each end face of the carrier body. Each flat bar end includes an element which has a gliding portion having a part arranged for being in a gliding contact with a slideway of the travelling flats assembly; and a securing portion supporting the gliding portion and being attached to the carrier body.Type: GrantFiled: April 30, 1993Date of Patent: December 12, 1995Assignee: Trutzschler GmbH & Co. KGInventors: Guido Spix, Andreas Ebenhoh, Hermann Trutzschler
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Patent number: 5471710Abstract: An apparatus for attaching working elements, such as carding elements, to a rotating fiber-opening roller, such as a licker-in, wherein the working element is attached on the axle boxes or retainers of the roller by means of an end cap at least partially encompassing the axle boxes or axle retainers.Type: GrantFiled: March 29, 1994Date of Patent: December 5, 1995Assignee: Maschinenfabrik Rieter AGInventors: Robert Demuth, Beat Naef, Werner Hirschle, Lars Weisigk
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Patent number: 5467505Abstract: A card clothing has an array of parallel elongated strips each having an inwardly directed and longitudinally extending foot part, a multiplicity of hooks extending outward from the foot part, and a pair of ends. A pair of longitudinally spaced support elements wholly out of direct contact with each other is provided, one end of each of the strips being seated in one of the support elements and the other end of each of the strips being seated in the other support element. The support elements are formed to fit with support structure of the carding machine.Type: GrantFiled: August 4, 1994Date of Patent: November 21, 1995Assignee: Graf + Cie AG Kratzen- Und MaschinenfabrikInventor: Ralph Graf
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Patent number: 5453146Abstract: A needle bar is made from a support member and a carrier. The needle bar can be made with a plurality of needle grooves. The bar is made by adhering the support member to the carrier. Then the support member is divided into a plurality of individual segments of predetermined length, after the support member is adhered to the carrier. Adjacent ones of the individual segments (a) can be spaced to form a gap narrower in width than the needle grooves, and (b) can have opposing edges shaped to form a concavity having a width equivalent to the needle grooves.Type: GrantFiled: January 31, 1994Date of Patent: September 26, 1995Assignee: Karl Mayer Textilmaschinenfabrik GmbHInventor: Rainer Kemper
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Patent number: 5448800Abstract: The separation of impurities through an opening in the casing of a rotating roller or drum is increased by guide grooves or guide gaps in the casing. The guide grooves or guide gaps extend in the direction of movement of the conveyed fibers and open out into the separating opening. The guide grooves may be formed directly in the casing in the surface facing the rotating roller or drum or may be formed by separate elements which are mounted on the casing and extend into the separating opening.Type: GrantFiled: December 29, 1993Date of Patent: September 12, 1995Assignee: Rieter Machine WorksInventors: Jurg Faas, Robert Demuth