Patents Assigned to Mesdan S.P.A.
  • Patent number: 10379065
    Abstract: A method for measuring the moisture content, the length and at least one dynamometric characteristic of textile fibers, includes pressing a layer of textile fibers between a pair of plates parallel to one another, withdrawing a line of textile fibers from said layer thus pressed and making the textile fibers of said line substantially coplanar and parallel to one another, bringing said line of textile fibers to a measuring area at which at least to perform one measuring step, moving the textile fibers away from the measuring area after having performed the at least one measuring step and measuring the moisture content of the textile fibers by means of microwave sensors.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: August 13, 2019
    Assignee: MESDAN S.p.A.
    Inventors: Gianpiero Preosti, Marco Musesti
  • Patent number: 10302620
    Abstract: A measuring device for measuring stickiness, imperfections and impurities in textile fibers, such a device includes a housing inside which a pair of rollers are placed, arranged side by side to one another and rotating in opposite senses and between which a web of cotton fibers is made to pass. The rollers are heated, the sticky fractions of the web that adhere to the rollers after the passage of the web between them are detected, and the sticky fractions adhering to the rollers are removed, wherein the heating is controlled by a processing and control unit as a function of the temperature of the rollers detected by a temperature sensor associated with them.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: May 28, 2019
    Assignee: MESDAN S.p.A.
    Inventors: Antonio Righettini, Giuseppe Pace, Marco Musesti
  • Patent number: 10024839
    Abstract: A measuring device for measuring the fineness and maturity of cotton fibers is provided. The measuring device includes a measuring chamber; a supply conduit; a flow regulator arranged along the supply conduit; a first pressure sensor upstream of the flow regulator; a second pressure sensor downstream of the flow regulator; an electronic proportional pressure regulator for regulating the air pressure in the supply conduit; and an electronic processing and control unit programmed to control the electronic proportional pressure regulator as a function of the detections of the first sensor and of the second sensor or of the second sensor alternatively and respectively to keep the difference between the air pressure upstream and downstream of the flow regulator or the air pressure entering the measuring chamber substantially constant and equal to a predeterminable value.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: July 17, 2018
    Assignee: MESDAN S.p.A.
    Inventors: Antonio Righettini, Giuseppe Pace
  • Patent number: 9909965
    Abstract: A preparation device prepares a sample of textile fibers, in particular cotton fibers, applicable to analysis and/or measuring apparatuses respectively for analyzing and/or measuring characteristics of the textile fibers forming the sample. The preparation device includes a comb body that can be coupled in a sliding manner along a rectilinear guide that faces a perforated plate against which to press a mass of textile fibers forming protuberances projecting from the holes of the perforated plate. The comb body is arranged to grip tufts of textile fibers from such protuberances. The preparation device also includes at least one brush that is mounted in a sliding manner along a rectilinear guide facing the perforated plate and that is arranged to brush the textile fibers forming the protuberances before the comb body grips the tufts.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: March 6, 2018
    Assignee: MESDAN S.p.A.
    Inventor: Fabrizio Musesti
  • Patent number: 9869620
    Abstract: A measurement device for measuring dynamometric features of elongated textile samples of the yarns, threads, tapes type and the like, such a device comprises a first clamp and a second clamp that is substantially aligned and relatively movable with respect to the first clamp along a first translation direction, each of the first clamp and the second clamp including a fixed jaw and a movable jaw in relation to the respective fixed jaw along a second translation direction substantially orthogonal to the first translation direction and the movable jaw is movable between a resting position and an operating position.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: January 16, 2018
    Assignee: MESDAN S.p.A.
    Inventors: Paolo Righettini, Andrea Ginammi
  • Patent number: 9841363
    Abstract: Modular equipment for automatically determining features of elongated textile samples is provided. The equipment includes a housing on which a loading module for loading inlet ends of textile samples to be tested is mounted, a measurement module for measuring at least feature of the textile samples, a handling device for handling the textile samples between the loading module and the measurement module, and a central unit of the programmable type for controlling and managing the loading module, the measurement module, and the handling means. The loading module includes gripping members that are arranged aligned to one another along a loading direction, a carriage that is driven in a movable manner in both translation senses along a translation direction parallel to the loading direction, and a motor associated with the carriage for operating the carriage moving along the translation direction.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: December 12, 2017
    Assignee: MESDAN S.p.A.
    Inventors: Paolo Righettini, Andrea Ginammi
  • Publication number: 20170122924
    Abstract: The present invention refers to a measuring device (600) for measuring the fineness and maturity of cotton fibers, such a measuring device (600) comprises a measuring chamber (CM) into which a sample of cotton fibers can be inserted, the measuring chamber (CM) comprises a first base and a second base that are opposite each other and that can be crossed by an air flow entering the measuring chamber (CM) through the first base and exiting from the measuring chamber (CM) through the second base, a supply conduit (619) having an inlet end associable with an air flow source and an outlet end associated with the first base of the measuring chamber, a flow regulator (611) arranged along the supply conduit (609) between its inlet and outlet ends, a first pressure sensor (612) for detecting the air pressure that is arranged along the supply conduit (609) upstream of the flow regulator (611), a second pressure sensor (613) for detecting the air pressure that is arranged along the supply conduit (609) downstream of the
    Type: Application
    Filed: October 26, 2016
    Publication date: May 4, 2017
    Applicant: MESDAN S.p.A.
    Inventors: Antonio RIGHETTINI, Giuseppe PACE
  • Publication number: 20170122854
    Abstract: The present invention refers to a preparation device (10) for preparing a sample of textile fibers, in particular cotton fibers, applicable to analysis and/or measuring apparatuses respectively for analyzing and/or measuring characteristics of the textile fibers forming said sample, wherein the preparation device (10) comprises a comb body (11) that can be coupled in a sliding manner along a rectilinear guide (12) that faces a perforated plate (13) against which to press a mass (M) of textile fibers forming protuberances projecting from the holes of the perforated plate (13), wherein the comb body (11) is arranged to grip tufts of textile fibers from such protuberances and is characterized in that it comprises at least one brush (14) that is mounted in a sliding manner along a rectilinear guide facing the perforated plate (13) and that is arranged to brush the textile fibers forming the protuberances before the comb body grips said tufts.
    Type: Application
    Filed: October 26, 2016
    Publication date: May 4, 2017
    Applicant: MESDAN S.p.A.
    Inventor: Fabrizio MUSESTI
  • Publication number: 20170122882
    Abstract: The present invention relates to a method for measuring the moisture content, the length and at least one dynamometric characteristic of textile fibers, in particular, cotton fibers, comprising the steps of: pressing a layer of textile fibers between a pair of plates parallel to one another, withdrawing a line of textile fibers from said layer thus pressed and making the textile fibers of said line substantially coplanar and parallel to one another, bringing said line of textile fibers to a measuring area at which at least to perform one measuring step selected from measuring the length and at least one dynamometric characteristic of the textile fibers forming the line, moving the textile fibers of the line of textile fibers away from the measuring area after having performed the at least one measuring step and measuring the moisture content of the textile fibers forming the layer and/or forming the line of textile fibers, by means of microwave sensors for measuring moisture, wherein said step f) of measuring
    Type: Application
    Filed: October 26, 2016
    Publication date: May 4, 2017
    Applicant: MESDAN S.p.A.
    Inventors: Gianpiero PREOSTI, Marco MUSESTI
  • Publication number: 20170122925
    Abstract: The present, invention refer(c) to. a measuring device (200) for measuring stickiness, imperfections and imparities in textile fibers, in particular cotton fibers, such a device comprising a housing inside which. a pair of rollers (203a, 203b) are placed, arranged side by side to one another and rotating in opposite senses and between which a web of cotton fibers is made to pass, heating means for heating the rollers (203a, 203b) , detection means (205a, 205b) for detecting the IS sticky fractions of the web that adhere to the rollers after the passage of the web between them, removal means (206a, 205b) for removing from the rollers (203a, 203b) the sticky fractions adhering thereto, wherein the operation of the heating means is controlled by a processing and control unit as a function of the temperature of the rollers detected by temperature sensor means (207a, 207b) associated with them.
    Type: Application
    Filed: October 26, 2016
    Publication date: May 4, 2017
    Applicant: MESDAN S.p.A.
    Inventors: Antonio RIGHETTINI, Giuseppe PACE, Marco MUSESTI
  • Publication number: 20170108417
    Abstract: Modular equipment (100) for automatically determining features of elongated textile samples of the yarns, threads, tapes type and the like, the equipment (100) comprises a housing (101) on which at least one loading module (102) for loading the inlet ends of a plurality of textile samples to be tested is mounted, each textile sample being fed from a corresponding package supported by support means that are associable with the equipment, at least one measurement module (103, 104, 106) for measuring at least one structural or physical-mechanical feature of the textile samples, handling means (105) for handling the textile samples between the loading module (102) and the at least one measurement module (103, 104, 106), and a central unit of the programmable type for controlling and managing the loading module (102), the at least one measurement module (103, 104, 106) and the handling means (105), the equipment (100) being characterized in that the loading module (102) comprises a plurality of gripping members (2
    Type: Application
    Filed: October 17, 2016
    Publication date: April 20, 2017
    Applicant: MESDAN S.p.A.
    Inventors: Paolo RIGHETTINI, Andrea GINAMMI
  • Publication number: 20170108416
    Abstract: A measurement device (10) for measuring dynamometric features of elongated textile samples of the yarns, threads, tapes type and the like, such a device (10) comprises a first clamp (12), a second clamp (13) that is substantially aligned and relatively movable with respect to the first clamp (12) along a first translation direction (A), wherein each of the first clamp (12) and the second clamp (13) comprises a fixed jaw (14, 16) and a movable jaw (15, 17) in relation to the respective fixed jaw along a second translation direction (B) substantially orthogonal to the first translation direction (A) and wherein the movable jaw (15, 17) is movable between a resting position, in which it is spaced apart with respect to the respective fixed jaw (14, 16), and an operating position, in which it is near to the respective fixed jaw (14, 16) in order to clamp a respective portion of an elongated textile sample against it, first force detection means (47) that are coupled with the first clamp (12) for detecting the tens
    Type: Application
    Filed: October 17, 2016
    Publication date: April 20, 2017
    Applicant: MESDAN S.p.A.
    Inventors: Paolo RIGHETTINI, Andrea GINAMMI
  • Patent number: 6868660
    Abstract: A process for the pneumatic splicing of threads or yarns containing an elastomer or with a high torque comprises at least the following phases: introduction into a splicing chamber (11, 110) of a splicer (10, 100) of threads (12, 15) to be joined to each other; withholding by friction of the thread-ends (12, 15) by means of friction elements or devices (27, 20, 21) close to or inside the splicing chamber (11, 110); cutting of the thread-ends (12, 15); opening of the thread-ends (12, 15) cut by means of preparation units (22, 23); pulling of the cut and opened thread-ends (12, 15) in the direction of the junction chamber (11, 110); expulsion of the threads and contemporaneous entry of one or more jets of compressed air into the chamber (11, 110) to effect the splicing of the thread-ends (12, 15) and releasing of the spliced thread with the return of all the units of the splicing device (10, 100) to their initial position. The invention also relates to a device for the embodiment of said process.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: March 22, 2005
    Assignee: Mesdan S.p.A.
    Inventor: Mauro Premi
  • Patent number: 6571545
    Abstract: A device for the pneumatic splicing of threads or yarns which includes a splice box (11), equipped with lateral outlet edges (12, 13) and an upper lengthwise slot (30) through which the thread ends (14, 15) are introduced into the splice box (11) and into which it is possible to blow in pressurized air. The device includes means to open and close, at least partially, the lateral outlet edges (12, 13) so as to be able to carry out an initial introduction of at least one blast of compressed air into the splice box (11) when the lateral outlet edges (12, 13) are mostly closed, and a second introduction of at least one blast of compressed air into the splice box (11) when the lateral outlet edges (12, 13) are mostly or completely open. Besides, the present invention has, as its aim, a process for the pneumatic splicing of threads or yarns.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: June 3, 2003
    Assignee: Mesdan S.p.A.
    Inventor: Mauro Premi
  • Patent number: 6434921
    Abstract: A method for the pneumatic splicing of threads or yarns containing an elastomer comprises, in sequence, at least the following phases: introduction in a splicing chamber (11), belonging to a splicing device (10, 10a, 10b, 10c), of the ends of the threads (12, 15) to be spliced together; a first input of one or more jets of compressed air into the splicing chamber (11) to perform a first interlacing of the threads (12, 15); cutting of the ends of the threads (12, 15), with scissors (18, 19), after the first input of air; a second input of one or more jets of compressed air into the splicing chamber (11) to complete the splicing of the cut ends of the threads (12, 15) and release of the spliced thread with the return of all the parts of the splicing device (10, 10a, 10b, 10c) to their original position.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: August 20, 2002
    Assignee: Mesdan S.p.A.
    Inventor: Mauro Premi
  • Patent number: 6412262
    Abstract: A device (10, 10′) for the splicing of textile threads using compressed air and liquid, which includes a casing on which is assembled a splicing head in which is made a mixing chamber (11), at least one feed duct of air with added liquid which leads into the chamber (11), a valve which is controlled by the immission of compressed air and means to add the liquid to the compressed air before its immission into the chamber (11). The splicing head, with its chamber, is set in an isolated tank from which extends at least one channel for the discharge to the outside of the compressed air with added liquid device. The device (10, 10′) has means for creating suction in the water discharge channel or channels (15, 16, 22, 23). In addition, the object of the present invention is a process for the splicing of textile threads using compressed air and liquid.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: July 2, 2002
    Assignee: Mesdan S.p.A.
    Inventors: Fabrizio Ragnoli, Valentino Crescini
  • Patent number: 6199360
    Abstract: A device for pneumatic knotless splicing of ends of thread or yarn. There is provided a cylindrical cavity, which is connected to a source of compressed air. In the cylindrical cavity, a piston rod is displaceable in both directions. A piston rod is actuated by an actuation lever, from a cam track of a drum. The track is divided at one section into two parallel branches. A first branch is used during rotation of the drum in a forward direction to displacement of the rod in one direction. A second branch is used during rotation of the drum in a return direction to displacement of the rod in the opposite direction.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: March 13, 2001
    Assignee: Mesdan S.p.A.
    Inventor: Mauro Premi
  • Patent number: 6170247
    Abstract: A device for preparing a thread end for splicing with an apparatus for the knotless pneumatic splicing of textile threads and yarns comprises a small tube for treating the thread end which is open at its opposite ends and suitable for receiving the end of the thread to be treated in correspondence with a peripheral point of its inlet end, and, at a distance from and opposite the said inlet end of the small tube, a circular nozzle for blowing a jet of pressurized fluid which is aligned with the said small tube and may be connected to a source of compressed fluid, the said nozzle having the end from which the jet of fluid emerges cut obliquely with respect to its axis so as to form an elliptical aperture and being mounted in rotatably adjustable manner about its axis with the elliptical outlet aperture of the jet of fluid facing towards the peripheral point of the inlet end of the small tube in correspondence with which the latter receives the thread end to be treated.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: January 9, 2001
    Assignee: Mesdan S.P.A.
    Inventors: Fabrizio Ragnoli, Ruggero Veronese
  • Patent number: 5680751
    Abstract: A pneumatic thread or yarn knotless joining apparatus for installation on the winding positions of an automatic bobbin winding machine is provided with its own reversible electric stepping motor to cause stepwise rotation of the group of controlling drum cams firstly in an outward direction starting from a starting position and then in the return direction for controlling the synchronized movements of the various movable members.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: October 28, 1997
    Assignee: Mesdan S.p.A.
    Inventor: Mauro Premi
  • Patent number: 5319914
    Abstract: In a device for the knotless joining of threads and yarns using compressed air, a chamber is provided including central region of substantially U or V cross-section, possibly with a flat base, and two lateral regions of substantially circular cross-section. The slits of the three regions, through which the yarns to be joined are inserted, form a continuous common gap which is closable frontally by a cover. A nozzle opens into the base of the central region in a direction perpendicular to the frontal opening of the slit of said central region, and a nozzle opens into the base of each lateral region opposite the frontal opening of the relative slit in a direction substantially tangential to the circular cross-section, these latter two nozzles being in opposing positions and feedable with compressed air via a duct which is separate from the feed duct for the nozzle opening into the central region.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: June 14, 1994
    Assignee: Mesdan S.p.A.
    Inventor: Mauro Premi