Patents Assigned to Graf + Cie AG
  • Patent number: 10392735
    Abstract: A clothing carrier (1) for flexible or semi-rigid clothings is formed from a random fiber sheet consolidated by needling. The random fiber sheet is formed from PES or PA fibers (10) and is impregnated with a polymer (11). The random fiber sheet is laminated with a PUR film (12) to structurally compensate at least one surface of the random fiber sheet.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: August 27, 2019
    Assignee: Graf + Cie AG
    Inventors: Peter Artzt, Günter Steinbach, Volker Jehle
  • Patent number: 10301749
    Abstract: A circular comb of a combing machine has a base body oriented parallel to a rotational axis of the circular comb, the base body including an inner support surface and a radially oriented opening. A comb element is disposed on an outer circumference of the base body, and a retaining element having a threaded bore is connected to the comb element. A threaded bolt has a threaded first section that engages into the threaded bore, a middle section that protrudes through the radially oriented opening the in base body, and a second end section supported on the inner support surface of the base body. A diameter of the first end section of the threaded bolt is smaller than a diameter of the middle section. A spring element is provided between the inner support surface of the base body and the second end section of the threaded bolt.
    Type: Grant
    Filed: September 10, 2016
    Date of Patent: May 28, 2019
    Assignee: Graf + Cie AG
    Inventors: Arnold Vetterli, Markus Schilter, Urs Müller, Urs Schiltknecht
  • Patent number: 10196760
    Abstract: A circular comb of a combing machine has a base body oriented parallel to a rotational axis of the circular comb, the base body including an inner support surface and a radially oriented opening. A comb element is disposed on an outer circumference of the base body, and a retaining element having a threaded bore is connected to the comb element. A threaded bolt has a threaded first section that engages into the threaded bore, a middle section that protrudes through the radially oriented opening the in base body, and a second end section supported on the inner support surface of the base body. A spring element is configured with the middle section of the fastening element and includes a first end supported on a support surface of the second end section of the fastening element, and a second end supported on the support surface of the base body.
    Type: Grant
    Filed: September 10, 2016
    Date of Patent: February 5, 2019
    Assignee: Graf + Cie AG
    Inventors: Arnold Vetterli, Markus Schilter, Urs Müller, Urs Schiltknecht
  • Patent number: 10145031
    Abstract: 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: Grant
    Filed: March 24, 2016
    Date of Patent: December 4, 2018
    Assignee: Graf + Cie AG
    Inventor: Willy Grob
  • Publication number: 20170306532
    Abstract: The invention relates to a clothing for processing textile fibers, with a clothing carrier (1) and clothing tips (2), with the clothing tips (2) being formed by wire hooks (4). The wire hooks (4) are pushed through the clothing carrier (1) in a punching process. The clothing carrier (1) is a random, paneled nonwoven formed from continuous fibers or staple fibers (10) that has been consolidated by needling and impregnated with a polymer (11) having a defined specific weight per unit area and a functional layer (12) applied to a side of the clothing carrier (1) facing toward the clothing tips (2). The polymer (1) has a proportion by weight of 20 to 70 percent of the specific weight per unit area of the random nonwoven.
    Type: Application
    Filed: June 8, 2015
    Publication date: October 26, 2017
    Applicant: Graf + Cie AG
    Inventors: Peter Artzt, Günter Steinbach, Volker Jehle
  • Patent number: 9145626
    Abstract: The invention relates to combing element for a circular comb of a combing machine that is connectable to a base body of the circular comb via fastening means. The combing element has a plurality of adjacently situated clothing elements oriented transversely with respect to the longitudinal direction of the combing element and provided with a toothed clothing. The combing element has a mounting bar with a supporting surface on which the clothing elements rest. The ends of the clothing elements protrude beyond the lateral faces of the mounting bar adjoining the supporting surface, and the clothing elements are joined to the mounting bar by means of at least one weld seam applied between the base surfaces of the ends of the clothing elements that protrude beyond the supporting surface of the mounting bar and the mounting bar.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: September 29, 2015
    Assignee: Graf + Cie AG
    Inventor: Urs Müller
  • Patent number: 8943654
    Abstract: The invention relates to a clothing carrier (3) for flexible or semi-rigid clothings (2) for processing fiber material, wherein the clothing carrier (3) has a longitudinal direction (6) and a transverse direction (7). The transverse direction (6) corresponds to a working direction (A) of the clothing (2). The clothing carrier (3) exhibits a maximum tensile force (FL) in the longitudinal direction (6) which is greater than a maximum tensile force (FQ) in the transverse direction (7).
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: February 3, 2015
    Assignee: Graf + Cie AG
    Inventors: Günter Steinbach, Peter Artzt, Volker Jehle
  • Patent number: 8590110
    Abstract: The invention relates to a saw-tooth clothing for rollers of a carding machine or a carder. The saw-tooth clothing has a multiplicity of successively arranged teeth, wherein each tooth has a tooth front and a tooth back and a tooth tip. The tooth backs of the teeth have in each case a certain distance from the tooth front of the in each case following tooth and form a tooth space which extends from a tooth root to the tooth tips. Between the tooth tips and the tooth root, the teeth have in each case on their tooth back and on their tooth front at least one embossment which reduces the distance between the tooth back of the teeth and the tooth front of the in each case following tooth.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: November 26, 2013
    Assignee: Graf + Cie AG
    Inventors: Josef Iten, Felix Hasler, Nikolaos Pavlou
  • Publication number: 20120255143
    Abstract: The invention relates to a saw-tooth clothing for rollers of a carding machine or a carder. The saw-tooth clothing has a multiplicity of successively arranged teeth, wherein each tooth has a tooth front and a tooth back and a tooth tip. The tooth backs of the teeth have in each case a certain distance from the tooth front of the in each case following tooth and form a tooth space which extends from a tooth root to the tooth tips. Between the tooth tips and the tooth root, the teeth have in each case on their tooth back and on their tooth front at least one embossment which reduces the distance between the tooth back of the teeth and the tooth front of the in each case following tooth.
    Type: Application
    Filed: April 9, 2012
    Publication date: October 11, 2012
    Applicant: Graf + Cie AG
    Inventors: Josef Iten, Felix Hasler, Nikolaos Pavlou
  • Patent number: 7743470
    Abstract: In a method for manufacturing sawtooth card clothings and all-steel card clothings for processing textile fibers in a carding process, a sawtooth wire is produced by generating teeth on a wire blank sequentially behind one another in a longitudinal direction of the wire blank, wherein the teeth extend transversely to the longitudinal direction away from a base area. The sawtooth wire is subjected at least in the area of the teeth to a hardening process under exclusion of oxygen in the area of the sawtooth wire. A device for performing the method has a heating chamber having an inlet opening and an outlet opening for the sawtooth wire passing through the heating chamber. An arrangement for generating an inert gas atmosphere in the area of the sawtooth wire passing through the heating chamber is provided.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: June 29, 2010
    Assignee: Graf + Cie AG
    Inventor: Ralph A. Graf
  • Publication number: 20090288273
    Abstract: 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: Application
    Filed: May 19, 2009
    Publication date: November 26, 2009
    Applicant: Graf & Cie AG
    Inventor: Willy GROB
  • Publication number: 20090265892
    Abstract: 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: Application
    Filed: April 8, 2009
    Publication date: October 29, 2009
    Applicant: Graf & Cie AG
    Inventor: Urs Mueller
  • Publication number: 20080040893
    Abstract: Toothed clothing for a comb of a combing machine as well a process for producing same is described. The toothed clothing includes a plurality of adjacently arranged teeth, which form at least one teeth row orientated transversely to the working direction. The teeth of the clothing are formed from the solid and are made in one piece to form a tooth bar. In addition, a top comb and a circular comb for a combing machine having such toothed clothings are also described. The toothed clothings hereby include one or more teeth rows.
    Type: Application
    Filed: June 21, 2007
    Publication date: February 21, 2008
    Applicant: Graf + Cie AG
    Inventor: Werner Strasser
  • Patent number: 6920671
    Abstract: A sawtooth wire for producing all-steel sawtooth clothing for the doffer and/or doffing cylinder of a carding machine with a plurality of teeth successively arranged in the longitudinal direction of the wire. Each tooth has a tooth breast beginning at the tooth bottom and extending in the direction toward the tooth tip and a tooth back that is connected with the tooth breast by two tooth flanks extending parallel to the longitudinal direction of the wire and that extends from the tooth tip in the direction of the following tooth bottom. At least one tooth flank has at least one profile segment that is located between the tooth tip and the tooth bottom and is provided with profiling.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: July 26, 2005
    Assignee: Graf + Cie AG
    Inventor: Ralph A. Graf
  • Patent number: 6863591
    Abstract: A device for dressing a card clothing, especially an all-steel sawtooth clothing, drawn over a preferably cylindrical drum, with a dressing system that can be moved along a path predetermined by a guide element, so that at least one element of the dressing system can be advanced in a direction that runs transversely, especially perpendicularly, to the predetermined path. The device has a remote-controlled advancing mechanism for advancing the one or more elements of the dressing system.
    Type: Grant
    Filed: December 13, 2003
    Date of Patent: March 8, 2005
    Assignee: Graf + Cie AG
    Inventor: Ralph A. Graf
  • Patent number: 6289588
    Abstract: The process serves to manufacture textile-processing devices such as card cylinders of ring-shaped configuration that comprise an all-steel wire clothing, or circular combs that are fitted with outward-facing saw-toothed wire sections. The wires (3) or the wire sections (13) are pre-bent to conform to the curvature of the ring (1) or circular comb mounting support (12), then surface-hardened through the application of a diamond/Ni layer, and finally anchored on the ring or circular comb mounting support.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: September 18, 2001
    Assignee: Graf & Cie AG
    Inventor: Ralph Armin Graf
  • Publication number: 20010015323
    Abstract: A method and an apparatus for manufacturing a wire, particularly a sawtooth wire for all-steel sawtooth wire card clothings, wherein the surface of a wire-shaped intermediate product, such as a wire already provided with sawteeth, is smoothened in an electropolishing process in an electrolyte bath containing an electrolyte. A relative movement is produced between the electrolyte and the intermediate product during the electropolishing process. The apparatus includes a device for producing a relative movement between the electrolyte and the intermediate product contained in the electrolyte bath.
    Type: Application
    Filed: February 14, 2001
    Publication date: August 23, 2001
    Applicant: Graf + Cie AG
    Inventor: Ralph A. Graf
  • Patent number: 6269522
    Abstract: 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: Grant
    Filed: November 18, 1999
    Date of Patent: August 7, 2001
    Assignee: Graf & Cie AG
    Inventors: Ralph A. Graf, Stefan Geisser
  • Patent number: 6195843
    Abstract: To improve the properties of all-steel card clothings, a saw-toothed wire is proposed with a foot portion and a plurality of teeth arranged consecutively in the lengthwise direction of the wire, the teeth issuing from the foot portion and each tooth ending in a single point, and where the interval between the points of two consecutive teeth is different from the interval between the points of other consecutive teeth.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: March 6, 2001
    Assignee: Graf & Cie AG
    Inventor: Ralph A. Graf
  • Patent number: 6070302
    Abstract: A card clothing for cards and/or carding machines includes several coating material layers which are composed of cotton and are connected through a binding agent with each other and with an elastomer cover layer provided on one of the outer sides to form a coating material unit. The coating material layers are equipped with hooks which extend transversely of the coating material layers and extend through the coating layers in the direction toward the elastomer cover layer and protrude with their tips. For reducing the harmful influences on the carding process resulting from electrostatic charges of the coating material unit due to accumulations of fibers and/or dust in the clothing area, inhibitors which at least reduce the generation of the electrostatic charges are added in the clothing area. Embedded at least in the cover layer is an electrically conductive material which serves for discharging the frictional electricity.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: June 6, 2000
    Assignee: Graf + Cie AG
    Inventor: Ralph A. Graf