Patents by Inventor Francesco Lonati

Francesco Lonati has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5907960
    Abstract: Method for manufacturing a tubular hosiery item with a closed end, with a single-cylinder circular knitting machine having a pivoting semicircular plate having radially sliding hooks, including alternately rotating the needle cylinder for moving the needles of a first half of the needle cylinder and the hooks of the overlying semicircular plate to pass in front of a feed of the machine; the extracted hooks forming a support for a thread dispensed at the feed, actuated needles being actuated so as to take up the thread and be alternated with inactive needles, subsequently swapping the actuated needles with the inactive needle when the motion of the needle cylinder is reversed; a first needle of the needles of a second half of the needle cylinder is also made to pass in front of the feed to take up the thread, in order to allow both end hooks of the hooks of the semicircular plate to engage the thread; retracting the hooks of the semicircular plate so as to retain the engaged thread; forming heel knitting with
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: June 1, 1999
    Assignee: Lonati S.p.A.
    Inventors: Francesco Lonati, Ettore Lonati, Fausto Lonati, Tiberio Lonati
  • Patent number: 5855122
    Abstract: A hook for single-cylinder circular knitting or stocking machines with cylinder and circular or semicircular plate. The hook comprises an elongated and flat hook body which has a claw-shaped longitudinal tip. The hook also comprises an elastic-lamina element which is associated with a lateral face of the hook body and has a claw-shaped tip which faces the claw-shaped tip of the hook body. A passage is formed between the lamina element and the hook body and is suitable to be crossed by a needle of the knitting or stocking machine; the claw-shaped tip of the lamina element can flex elastically towards and away from the hook body, respectively to close the claw-shaped tip of the hook body and to allow the extraction of the needle inserted in the passage towards the claw-shaped tip of the hook body.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: January 5, 1999
    Assignee: Lonati S.p.A.
    Inventors: Francesco Lonati, Ettore Lonati, Fausto Lonati, Tiberio Lonati
  • Patent number: 5823013
    Abstract: A method for producing tubular components, particularly for manufacturing hosiery or other items of clothing with a shaping effect by using circular knitting or hosiery-making machines, and a tubular component obtained with the method. The method consists in forming, during the production of the tubular component, certain portions of rows of knitting, for some rows, with a greater loop length than the preceding rows, the subsequent rows, and the remaining portions of the rows themselves, in order to form at least one lateral pouch along the extension of the tubular component.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: October 20, 1998
    Assignee: Lonati S.p.A
    Inventors: Francesco Lonati, Tiberio Lonati, Ettore Lonati, Fausto Lonati
  • Patent number: 5816075
    Abstract: A single-cylinder circular hosiery-making or knitting machine particularly for manufacturing tubular items closed at one of their axial ends, having a needle cylinder and a circular plate which coaxially faces the needle cylinder in an upward region. The circular plate is composed of two halves, a first half of which is pivoted to a first supporting structure about a diametrical axis which is substantially parallel to the diametrical connecting plane of the two halves of the circular plate. The first half of the circular plate is also provided with radial grooves which accommodate pairs of hooks which can be actuated along the corresponding groove so as to engage or release loops or portions of loops of knitting formed by the needles of the needle cylinder.
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: October 6, 1998
    Assignee: Lonati S.p.A.
    Inventors: Francesco Lonati, Ettore Lonati, Fausto Lonati, Tiberio Lonati
  • Patent number: 5775132
    Abstract: The main object of the invention is to obtain knitwork the density of which is not influenced by the tension of the previously formed loops (15). In the particular case of terry cloth the terries are hence particularly uniform and stable.This is achieved by operationally interposing the terry sinker (2) between two stitch sinkers (3, 21).The method for producing terry knitwork is as follows:the first yarn (12) passes under the stitch hooks (7) while resting on the knocking-over surfaces (8) of the stitch sinkers (3, 21), and then over the terry hook (4) while resting on the terry surface (5) of the terry sinker (2);the second yarn (13) follows the first yarn (12), but instead of passing over the terry hook (4) passes along the working surface (6) of the terry sinker (2).The method for producing wide-mesh knitwork comprises for both yarns (12, 13) a path identical to that of the first yarn (12) of the terry knitwork production method.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: July 7, 1998
    Assignee: Santoni S.r.l.
    Inventors: Tiberio Lonati, Fausto Lonati, Ettore Lonati, Francesco Lonati
  • Patent number: 5761931
    Abstract: A single-cylinder circular knitting machine, including a needle cylinder and a circular plate that is arranged above the needle cylinder and coaxially thereto. The circular plate is constituted by two portions, one of which can rotate with respect to the other about a diametrical axis of the circular plate. An actuation device is also provided which acts on command on the portion of the circular plate that can rotate with respect to the other one, in order to move it from a first position, in which it is co-planar with respect to the other portion, to a second position, in which it is arranged so as to face the other portion from below, or vice versa.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: June 9, 1998
    Assignee: Matec S.r.l.
    Inventors: Francesco Lonati, Tiberio Lonati, Ettore Lonati, Fausto Lonati
  • Patent number: 5727400
    Abstract: In a first step of the method for manufacturing socks with a single-cylinder circular knitting machine a needle cylinder is oscillated about its own axis with an oscillation angle of about 180.degree. to move half of the needle cylinder that faces a half-platen such that it passes in front of a feed of the machine. During these oscillations, engagement elements are extracted radially from the half-platen towards the needles of the machine, at least one thread dispensed at the feed, and lifting to the knitting position, at each oscillation, 1/n uniformly spaced needles of the mentioned half of the needle cylinder, varying the needles that are moved into the knitting position in the subsequent oscillation or oscillations, and lowering the needles after engaging the thread or threads, which rests on the engagement elements. A second step is then performed, during which the engagement elements are retracted towards the half-platen, retaining the thread or threads that rest thereon.
    Type: Grant
    Filed: July 8, 1996
    Date of Patent: March 17, 1998
    Assignee: Matec S.r.l.
    Inventors: Francesco Lonati, Ettore Lonati, Fausto Lonati, Tiberio Lonati
  • Patent number: 5718128
    Abstract: Double-cylinder circular knitting machine for hosiery or the like. The machine comprises a lower needle cylinder having a substantially vertical axis and an upper needle cylinder that is arranged above and coaxially with respect to the lower needle cylinder. A plurality of axial grooves is formed in the skirt of the needle cylinders and each groove accommodates a double-beak needle that can move axially along the corresponding groove. In each one of the grooves there is a lower pusher, which is arranged below the needle and faces the lower head of the needle with its upper end, and an upper pusher, which is arranged above the needle and faces the upper head of the needle with its lower end.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: February 17, 1998
    Assignee: Matec S.r.l.
    Inventors: Francesco Lonati, Tiberio Lonati, Ettore Lonati, Fausto Lonati
  • Patent number: 5335518
    Abstract: The machine is provided with casting-off sinkers having two casting-off surfaces which are mutually spaced in a direction which is parallel to the axis of the needle cylinder to form toweling stitches. The machine has auxiliary jacks which are accommodated in axial grooves of a needle cylinder and can move, when actuated, along these grooves parallel to the axis of the needle cylinder so as to act, with their upper end, on the casting-off sinkers to move them in a direction which is radial to the needle cylinder from a rearward position, in which they receive two threads engaged by the contiguous needles on a same one of the two casting-off surfaces, forming two loops of knitting of equal length, to an advanced position in the direction of the axis of the needle cylinder, in which they receive the two threads engaged by the contiguous needles respectively on one of the casting-off surfaces and on the other casting-off surface so as to form two loops having mutually different lengths, i.e. toweling stitches.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: August 9, 1994
    Assignee: Santoni S.r.l.
    Inventors: Francesco Lonati, Ettore Lonati, Fausto Lonati, Tiberio Lonati
  • Patent number: 5285662
    Abstract: The single-cylinder circular knitting machine has a vertically arranged needle cylinder with a skirt defining a plurality of axial grooves. Each groove slidingly accommodates a needle. A platen is arranged coaxially above the needle cylinder, and a plurality of radial grooves is defined therein. Each one of the radial grooves accommodates a hook which is movable by the action of actuation cams which can be engaged, during rotation of the platen about its axis, with a heel of the hooks, from a position in which the hooks are retracted in the platen to an extraction position, and vice versa. The machine is provided with a hook locking device which is arranged proximate to the platen and is controllably engageable with the hooks to keep them in the retracted position in the platen.
    Type: Grant
    Filed: December 2, 1992
    Date of Patent: February 15, 1994
    Assignee: S.F.I.M. S.r.l.
    Inventors: Francesco Lonati, Tiberio Lonati, Ettore Lonati, Fausto Lonati
  • Patent number: 5284033
    Abstract: A single-cylinder circular knitting machine with anti-twist device includes a needle cylinder in which there is a cavity which is open upward and can be connected, through a perforated region which extends around the needle cylinder axis, to a suction device so as to retain the product during its forming against the walls of the cavity. An inner tubular body is arranged inside the cavity and can be connected to a suction device for drawing the finished product through the inner tubular body. The inner tubular body is controllably movable along an axial direction from a first position, in which its upper end is proximate to the upper end of the needle cylinder, to a second position, in which its upper end is proximate to the bottom of the cavity.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: February 8, 1994
    Assignee: Lonati S.r.l.
    Inventors: Francesco Lonati, Tiberio Lonati, Ettore Lonati, Fausto Lonati
  • Patent number: 5251463
    Abstract: The thread guide structure for double-cylinder circular knitting machines comprises a thread guide body which has an elongated configuration and has, proximate to one of its longitudinal ends, a thread dispensing passage. The thread guide body has a first part and a second part which are mutually articulated proximate to an intermediate region of the thread guide body. The first part, which is provided with the thread dispensing passage, is oscillatable with respect to the second part about an oscillation axis which is arranged transversely to the longitudinal extension of the thread guide body.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: October 12, 1993
    Assignee: Lonati S.r.l.
    Inventors: Francesco Lonati, Ettore Lonati, Fausto Lonati, Tiberio Lonati
  • Patent number: 5237841
    Abstract: The thread feed unit has a supporting block which can be associated with a knitting machine laterally to the needle cylinder or cylinders and is provided with at least one thread guide which has a body provided with an elongated configuration associated with a supporting element and slidable along a direction substantially parallel to its longitudinal extension. The supporting element is associated with the supporting block for oscillation about an oscillation axis transverse to the sliding direction of the thread guide body. A first thread guide actuator is provided and controllably acts on the supporting element to oscillate the thread guide about the oscillation axis, and a second actuator controlling the thread guide body to slide it longitudinally with respect to the supporting element. The first actuator and the second actuator are associated with the supporting block and can be actuated independently of one another.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: August 24, 1993
    Assignee: Lonati S.r.l.
    Inventors: Francesco Lonati, Ettore Lonati, Fausto Lonati, Tiberio Lonati
  • Patent number: 5231856
    Abstract: The twin-cylinder circular knitting machine with knitted fabric tensioning device having members for retaining the fabric proximate to a knitting forming region. A first fluid-activated piston is accommodated in the upper needle cylinder and is provided with a hollow stem which is open at its ends. The lower end of the stem is engageable, by means of the sliding of the piston parallel to the axis of the needle cylinders, with the knitted fabric being formed in order to apply tension thereto. The retention members have dimensions for allowing the stem to slide outside of the retention members. The tensioning device also has an auxiliary actuation piston which acts on the piston to achieve its descent at a controlled rate at least until the lower end of the stem of the piston makes contact with the fabric in the region comprised between the retention members and the knitting forming region.
    Type: Grant
    Filed: May 20, 1992
    Date of Patent: August 3, 1993
    Assignee: Lonati S.r.l.
    Inventors: Francesco Lonati, Ettore Lonati, Fausto Lonati, Tiberio Lonati
  • Patent number: 5222380
    Abstract: The circular knitting machine has a pneumatic service circuit with pneumatically actuated service devices arranged around the needle cylinder. An annular body surrounds the needle cylinder, and a main duct is defined in the annular body. The main duct is supplied with pressurized air and is connected to the supply ducts of pneumatic actuators which actuate the service devices. Valve for operating the actuators are arranged between the actuator supply ducts and the main duct.
    Type: Grant
    Filed: May 20, 1992
    Date of Patent: June 29, 1993
    Assignee: Lonati S.r.L.
    Inventors: Francesco Lonati, Ettore Lonati, Fausto Lonati, Tiberio Lonati
  • Patent number: 5203184
    Abstract: The single-cylinder circular machine comprises a substantially vertical needle cylinder which is rotatable about an axis and supports a plurality of needles which are arranged in axial grooves of the outer skirt of the needle cylinder and can move individually along directions which are parallel to the needle cylinder axis. A platen is arranged coaxially above the needle cylinder and is supported, so as to be rotatable about the needle cylinder axis, by the supporting structure of the machine. The machine comprises first connecting members which can be controllably activated or deactivated in order to rigidly associate the platen, in its rotation about the axis, with the needle cylinder, and second connecting members arranged on a wing of the platen which extends inside the needle cylinder and on a portion of the inner surface of the needle cylinder which faces the wing.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: April 20, 1993
    Assignee: S.F.I.M. S.r.L.
    Inventors: Francesco Lonati, Ettore Lonati, Fausto Lonati, Tiberio Lonati
  • Patent number: 5170645
    Abstract: The direct drive circular knitting machine has a main structure rotatably supporting a needle cylinder having a needle cylinder axis. An electric motor is provided for rotating the needle cylinder with respect to the main structure about the needle cylinder axis. The electric motor has a rotor rigidly and coaxially connected to the needle cylinder, and a stator located adjacent to the rotor and supported by the main structure.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: December 15, 1992
    Assignee: S.F.I.M. S.r.l.
    Inventors: Francesco Lonati, Ettore Lonati, Fausto Lonati, Tiberio Lonati
  • Patent number: 5170649
    Abstract: The circular knitting machine for socks, stockings or the like, in particular for producing knitting with towelling stitches, comprises, at the set of knitting-forming cams which actuate the motion of the needles during the engagement of the thread or threads at one feed of the machine, an additional cam. The additional cam is arranged above the central cam and defines a descending portion which is engageable with the heel of the needles, excluded from knitting at that feed and raised with respect to the needles which knit at that feed. The controlled lowering of the needles which do not knit at the feed facilitates the positioning of the thread or threads fed at the feed and the correct forming of the loops by the needles which knit at that feed.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: December 15, 1992
    Assignee: Lonati S.r.l.
    Inventor: Francesco Lonati
  • Patent number: 5152157
    Abstract: The machine has a rotatable needle cylinder and a casting-off sinker actuation device including a coaxial sinker ring supporting a cam and an external countercam. The needle cylinder supports a plurality of casting-off sinkers each having a heel which follows a path, extending around the needle cylinder axis, which is partially defined by the cam and the countercam. A pin is connected to the countercam and is engaged by an actuation element associated with the sinker ring and bilaterally engaging the pin. The actuation element is controllably activatable for bilaterally moving the countercam with respect to the needle cylinder along a direction having a radial component, toward or away from the axis of the needle cylinder.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: October 6, 1992
    Assignee: Lonati S.r.l.
    Inventor: Francesco Lonati
  • Patent number: 5142886
    Abstract: The present machine has a device for repeating the selection of the needles at least at one thread feed, which includes a memory element arranged proximate to the lower end of the selectors, which can oscillate in a plane radial to the needle cylinder by virtue of the action of selection levers arranged upstream of a thread feed of the machine, according to the direction of the rotation imparted to the needle cylinder about its own axis. The selectors can individually oscillate in a radial plane with respect to the needle cylinder from an extraction position, whereat they protrude from the needle cylinder with a main heel so as to engage actuation cams arranged about the needle cylinder, to a sunk position, whereat they do not engage the cams.
    Type: Grant
    Filed: October 19, 1990
    Date of Patent: September 1, 1992
    Assignee: Lonati S.p.A.
    Inventor: Francesco Lonati