Radially Slidable Patents (Class 66/107)
  • Patent number: 10513807
    Abstract: A knitting machine capable of changing a pile length includes a low-pile sinker and a high-pile sinker, a low-pile selector jack arranged on the rear end side of the low-pile sinker, a high-pile selector jack arranged on the rear end side of the high-pile sinker, an actuator operable to, when a pile yarn and a ground yarn are drawn in by a knitting needle, selectively perform the first control in which the actuator acts on the low-pile selector jack, the second control in which the actuator acts on the high-pile selector jack, and the third control in which the actuator does not act on any of the low-pile and high-pile selector jacks, and a cam operable to push out the selector jack subjected to the action of the actuator and the sinker which is in contact with the selector jack to an area between the knitting needles.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: December 24, 2019
    Assignee: OKAMOTO CORPORATION
    Inventor: Takao Fukui
  • Patent number: 10426201
    Abstract: An improved waistband for lower body garments, such as pantyhose, tights, leggings, or underwear. The waistband is knitted as a tube on a circular knitting machine with horizontal courses with respect to the length of the tube. The tube is configured into a continuous loop and seamed. The tube is perpendicularly sewn to the top of the panty portion of the garment to create the waistband such that the knit courses in the waistband align vertically with respect to the length of the garment. The vertical alignment of the courses in the waistband provide comfort and support while resisting the roll down effect that occurs in knitted waistbands having horizontally aligned courses.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: October 1, 2019
    Assignee: Wells Hosiery and Apparel
    Inventors: Rodney Jay DeBusk, James Ray Johnson, Salina Jean Davis, Robert Charles Nelson
  • Patent number: 10392732
    Abstract: A circular machine for knitting, hosiery or the like, with sinker actuation device, comprising a needle cylinder; the needle cylinder has, on its lateral surface, a plurality of axial grooves, each of which accommodates a needle that can move on command along the corresponding axial groove in order to pick up at least one yarn dispensed at at least one feed or drop and form knitting; the machine also comprises needle actuation cams, which face the lateral surface of the needle cylinder and define paths that are extended around the axis of the needle cylinder and can be engaged by at least one heel of the needles, which protrudes from the lateral surface of the needle cylinder, in order to actuate the movement of the needles along the corresponding axial groove with respect to the needle cylinder as a consequence of the rotation of the needle cylinder about its own axis with respect to the needle actuation cams and the at least one feed.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: August 27, 2019
    Assignee: LONATI S.P.A.
    Inventors: Ettore Lonati, Fausto Lonati, Francesco Lonati
  • Patent number: 10240267
    Abstract: A needle cylinder of a circular knitting machine includes a cylinder jacket having axial needle channels, knitting needles movable therein and an upper cylinder end for stitch formation having a radial groove between pairs of adjacent needle channels each having an insert forming a stitch formation surface with its insert surface protruding from the groove. Exchangeable, stitch formation surfaces form quickly replaceable inserts. Each insert is a spring lug including a lug foot overlapping the upper cylinder end at the side of the cylinder jacket or the side edge of an outer ring channel in the upper cylinder end and a lug terminal with a terminal part springily engaging behind a counter support projecting at the upper cylinder end at the cylinder's inner side or a side edge of an inner ring channel in the upper cylinder end. A circular knitting machine with the needle cylinder is also provided.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: March 26, 2019
    Assignee: Terrot GmbH
    Inventors: Thomas Mutschler, Hermann Schmodde, Pierangelo Zola
  • Patent number: 10015998
    Abstract: The present disclosure provides a sock comprising a leg portion, and an elastic band portion coupled to the leg portion, wherein the band portion is knitted using only a covering yarn, wherein a bottom of the band portion is coupled in an integrated manner to a top of the leg portion via knitting, wherein the band portion has inner and outer portions, wherein the band and leg portions are knitted with each other such that each of first loops of outer and inner yarns of the leg portion passes through and hooks on both of first and last loops of the band portion, and, thereafter, the covering yarn is cut, and, then, the leg portion is continuously knitted using the outer and inner yarns thereof.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: July 10, 2018
    Inventor: Jaehyung Hong
  • Patent number: 8938995
    Abstract: Sinker cam segments in a circular knitting machine are located with respect to the generally radial direction by a generally radially inwardly facing location surface disposed radially outward of the segments. Each segment's radially outer end defines a contact region that abuts the locating surface. The contact region can be complementary surface contour to that of the locating surface, or a pair of discrete, spaced contact points protruding out from the radially outer end of the segment. The contact region is a reference for positioning the sinker cam segment with respect to the generally radial direction.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 27, 2015
    Assignee: Monarch Knitting Machinery Corporation
    Inventor: Bruce Pernick
  • Publication number: 20140260435
    Abstract: Sinker cam segments in a circular knitting machine are located with respect to the generally radial direction by a generally radially inwardly facing location surface disposed radially outward of the segments. Each segment's radially outer end defines a contact region that abuts the locating surface. The contact region can be complementary surface contour to that of the locating surface, or a pair of discrete, spaced contact points protruding out from the radially outer end of the segment. The contact region is a reference for positioning the sinker cam segment with respect to the generally radial direction.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Monarch Knitting Machinery Corporation
    Inventor: Bruce Pernick
  • Publication number: 20130205837
    Abstract: A knitting machine capable of changing a pile length includes a low-pile sinker and a high-pile sinker, a low-pile selector jack arranged on the rear end side of the low-pile sinker, a high-pile selector jack arranged on the rear end side of the high-pile sinker, an actuator operable to, when a pile yarn and a ground yarn are drawn in by a knitting needle, selectively perform the first control in which the actuator acts on the low-pile selector jack, the second control in which the actuator acts on the high-pile selector jack, and the third control in which the actuator does not act on any of the low-pile and high-pile selector jacks, and a cam operable to push out the selector jack subjected to the action of the actuator and the sinker which is in contact with the selector jack to an area between the knitting needles.
    Type: Application
    Filed: February 14, 2013
    Publication date: August 15, 2013
    Applicant: OKAMOTO CORPORATION
    Inventor: Okamoto Corporation
  • Publication number: 20130205836
    Abstract: A circular knitting machine includes sinkers and selector jacks corresponding thereto that are provided as separate components. The selector jacks are arranged radially outside the sinkers, and are provided with selector butts such that the selector butts of circumferentially adjacent selector jacks are arranged at different radial positions. An actuator that acts on the selector butts is arranged radially outside the cylinder. The circular knitting machine prevents a failure of sinker selection, while increasing a rotation speed of a cylinder holding knitting needles.
    Type: Application
    Filed: February 14, 2013
    Publication date: August 15, 2013
    Applicant: OKAMOTO CORPORATION
    Inventor: Okamoto Corporation
  • Patent number: 8484998
    Abstract: A circular knitting machine with a fine gauge includes a circular cylinder and a sinker holder annularly located on an outer side of the circular cylinder. The circular cylinder has a plurality of knitting needles parallel with the axial direction of the circular cylinder to move alternately, and an annular top surface corresponding to the knitting needles. The sinker holder has a plurality of retaining slots to hold a plurality of sinkers. Each sinker has a slide edge, a movement edge extended from the slide edge at the same elevation to the annular top surface and located above the annular top surface, and a loop forming nose located between two neighboring knitting needles. Each retaining slot has a leaning surface in contact with the slide edge to allow the sinker to move towards the annular top surface to proceed a loop forming movement.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: July 16, 2013
    Assignee: Pai Lung Machinery Mill Co., Ltd.
    Inventor: Tieh-Hsiung Pai
  • Patent number: 8371144
    Abstract: A sinker includes a sliding segment with a sliding portion slidably located in a sinker groove, a loop forming and loosening ancillary segment extended upwards from one side of the sliding portion and then extended outwards, a passive segment located above the sliding segment and driven by a cam, and an indented abrasion-reducing space located at a lateral side of the sliding portion and below the loop forming and loosening ancillary segment. Through the abrasion-reducing space, the loop forming and loosening ancillary segment can move directly and horizontally above a needle cylinder. The loop forming and loosening mechanism for circular knitting machines of the invention can simplify fabrication of the needle cylinder, reduce labor and material costs, improve quality and production yield of the needle cylinder, and also reduce abrasion of the sinker, thus can improve performance of the mechanism and enhance lifespan of the sinker.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: February 12, 2013
    Assignee: Pai Lung Machinery Mill Co., Ltd.
    Inventor: Tieh-Hsiung Pai
  • Patent number: 7827828
    Abstract: A sinker cam ring for a circular knitting machine comprises a plurality of sinker cam segments arranged edge-to-edge to form the sinker cam ring, each sinker cam segment defining a portion of a sinker cam track that defines sinker-advancing and sinker-retracting surfaces. Breaks between adjacent sinker cam segments are located in linear portions of at least one of the sinker-advancing surfaces and sinker-retracting surfaces where substantially only frictional forces act on the sinkers, and thus where radial acceleration of the sinkers caused by the cam surfaces is substantially zero. The breaks for a given sinker cam segment can be circumferentially staggered relative to each other.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: November 9, 2010
    Assignee: Monarch Knitting Machinery Corp.
    Inventor: Bruce Pernick
  • Patent number: 7726156
    Abstract: Proposed is a sinker (2) provided with a region (23) of reduced thickness on its working part (9). As a result, a clearance space is created on at least one side of the sinker (2). This clearance space makes it possible to reduce the distance between the sinker (2) and the latch needle (3) or to reduce the wear between these two elements. The clearance space furthermore does not change the distance between the sinker and the latch needle on the other side of the sinker. The sinker (2) according to the invention preferably has a clearance space on both sides, so that this sinker can be used in circular knitting machines which are designed for both rotational directions.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: June 1, 2010
    Assignee: Groz-Beckert KG
    Inventors: Bob Hagens, Uwe Stingel
  • Patent number: 7607322
    Abstract: A sinker cam ring for a circular knitting machine comprises a plurality of sinker cam segments arranged edge-to-edge to form the sinker cam ring, each sinker cam segment defining a portion of a sinker cam track that defines sinker-advancing and sinker-retracting surfaces. Breaks between adjacent sinker cam segments are located in linear portions of at least one of the sinker-advancing surfaces and sinker-retracting surfaces where substantially only frictional forces act on the sinkers, and thus where radial acceleration of the sinkers caused by the cam surfaces is substantially zero. The breaks for a given sinker cam segment can be circumferentially staggered relative to each other.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: October 27, 2009
    Assignee: Monarch Knitting Machinery Corp.
    Inventor: Bruce Pernick
  • Publication number: 20090139272
    Abstract: A magnetic actuator, particularly for selection devices in hosiery knitting machines or the like, comprising a main magnet, which has at least two poles arranged side by side and separated by a discontinuity, and a selection electromagnet, which is provided with at least one pole arranged in alignment with the discontinuity and spaced laterally with respect to it. The selection electromagnet can be actuated to generate or eliminate or reduce a magnetic attraction force at the pole of the selection electromagnet.
    Type: Application
    Filed: November 18, 2005
    Publication date: June 4, 2009
    Inventors: Tiberio Lonati, Fausto Lonati, Ettore Lonati
  • Patent number: 7281396
    Abstract: A medium- or large-diameter single-cylinder circular knitting machine with a radially compact sinker ring, comprising a needle cylinder that has a vertical axis and a sinker ring that is connected coaxially to the needle cylinder proximate to the upper end of the needle cylinder. The sinker ring has a plurality of radial slots, each of which accommodates at least one sinker, the sinker ring being arranged inside the radial dimensions of the needle cylinder and the sinkers being shaped so that their beak is directed toward the axis of the needle cylinder.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: October 16, 2007
    Assignee: Santoni S.p.A.
    Inventors: Ettore Lonati, Fausto Lonati, Tiberio Lonati
  • Patent number: 7152436
    Abstract: A circular knitting machine provides sinkers that are moved in an inclined manner in the sinker troughs to position yarn laps and prevent the sinkers from hitting yarn feeding plates. The sinker has a nose section to hold the yarn laps at a horizontal high point to prevent the yarn laps from slipping, and has a throat section which has a horizontal first end surface and a belly section with an inclined second end surface in order to keep the knitting needles and sinkers moving smoothly during a knitting operation. The yarn feeding plate has a dodging edge on a distal end, the dodging edge being formed in a shape corresponding to the movement track of the sinker and having a slanted surface at the front end thereof, so as to avoid hitting the sinker when the sinker is moved in the sinker trough in an inclined manner.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: December 26, 2006
    Assignee: Pai Lung Machinery Mill Co., Ltd.
    Inventor: Ping-Shih Wang
  • Patent number: 7065989
    Abstract: A sinker selection device in a circular knitting machine, comprising for each radial slot of the sinker ring in which sinkers are accommodated, a selector facing the end of the corresponding radial slot directed away from the axis of the sinker ring, the selector being oscillatable on a radial plane with respect to the sinker ring to pass from active to inactive positions, and connected to the corresponding sinker, arranged in the corresponding radial slot, to induce different actuation of the corresponding sinker along the corresponding radial slot, depending on whether the selector is in the inactive position or in the active position. A selection actuator is provided which laterally faces the sinker ring and can engage on command the selector for transfer from inactive to active positions.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: June 27, 2006
    Assignee: Lonati S.p.A.
    Inventors: Ettore Lonati, Tiberio Lonati, Fausto Lonati
  • Patent number: 6840065
    Abstract: A sinker of circular knitting machines for pile fabrics, which is used in the circular knitting machine assembly has an aslant contact surface between a sinker cylinder and a cam. By the aslant surface disposed on a nose section of the sinker, the bottom yarn can fall accordingly and constitutes a perfect plating loop effect with the binding yarn. Further a first end surface of a throat section and the second end surface of an abdominal section are designed with different inclined angles to cope with the movement of a sinker cylinder of a circular knitting machine having an aslant surface. Therefore, the knitting needle and the sinker on the circular knitting machine can maintain a smooth knitting movement.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: January 11, 2005
    Assignee: Pai Lung Machinery Mill Co., Ltd.
    Inventor: Ping-Shih Wang
  • Patent number: 6799444
    Abstract: An improved circular knitting machine aims to provide an improved structure and installation for cams. It includes a saddle plate forming an angle to the horizontal surface with the cams mounting thereon in an inclined manner, and a sinker drum surrounded by the saddle plate. The sinker drum has an inclined surface formed in a continuous circular ring in the shape of a conical shallow tray so that the sinker drum has a concave surface. The sinker drum has sinker troughs formed thereon for housing sinkers in an inclined manner. The cam has one end fastened to the saddle plate in an inclined manner and the other end forming a convex surface to be in contact with the concave surface. The cam has a driving path formed on the bottom side thereof to allow the sinkers to be movable therein. The sinker drum may be rotated to drive the sinkers to move smoothly in the cam.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: October 5, 2004
    Assignee: Pai Lung Machinery Mill Co., Ltd.
    Inventor: Ping-Shih Wang
  • Patent number: 6715325
    Abstract: The invention concerns a method of producing a knit fabric which is patterned and at least partially plated, on a circular machine equipped with a cylinder with needles (12) and sinkers (14), comprising the use of a first strand and a second strand (A, B) which are different at least in colour and which are fed to the needles through the sinkers, and the positioning of the strands through selection and a programmed longitudinal movement of the sinkers in such a way as to arrange alternately, one or other of the two strands on the reverse side and face side of the resulting knit fabric, without cutting the strands, creating patterns which are different in colour at least, in the fabric areas in which there is, on the face side or in view, one or other of the strands. This method can be used both for the production of smooth plated fabric and for the production of fabric which is part terry and part plated.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: April 6, 2004
    Assignee: Sangiacomo S.p.A.
    Inventor: Fulvio Sangiacomo
  • Patent number: 6705129
    Abstract: The invention relates to a circular knitting machine for multicolored plush. A plush sinker (113) is provided with at least two planes (90, 91) for kinking loop threads of different loop length. The knocking-over sinker (112) has a bill comprising at least two webs (96, 97) for restretching pile loops of different loop length. Plush knitted goods having plush loops of different heights and different colors can be produced by means of said circular knitting machine. Knitted goods being combined of epinglé and velour can thus be produced by shearing the longer plush loops.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: March 16, 2004
    Assignee: Milliken & Company
    Inventor: Mark Pot d'Or
  • Patent number: 6321575
    Abstract: A system of cams and a sinker for terry cloth knitting using the needles on circular knitting machines and stocking knitting machines. Cam means (20, 21, 22) are provided for selectively interacting with a control bottom part (18) and with a shoulder (19) for the inlet and outlet differential longitudinal movements of each sinker in relation to the needles for a selective plain stitch formation at a horizontal plane (14), a terry cloth stitch at a top mouth (15) and a mixed stitch at an intermediate notch (17) on the head of the sinker proper.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: November 27, 2001
    Assignee: Sangiacomo S.p.A.
    Inventor: Fulvio Sangiacomo
  • Patent number: 6286343
    Abstract: A device for the selection of the sinkers for the manufacture of designed terry cloth knitwear on circular knitting machines and stocking knitting machines. Each sinker (13) is capable of oscillations in a vertical plane between a canceled, resting position, in which its tail end (21) is not intercepted by a return cam (24), and an operating position, in which its tail end interacts with the return cam for the longitudinal movements of the sinker. The sinker also has a bottom part that interacts with inlet and outlet cams, and the sinker can be moved from the canceled, resting position to the operating position by a selection device acting on an oscillating selector associated with the shaft of the sinker.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: September 11, 2001
    Assignee: Sangiacomo S.p.A.
    Inventor: Fulvio Sangiacomo
  • Patent number: 6269665
    Abstract: A jack and upper needle dial for circular knitting machine for fabricating double-knitting plush fabric includes an outer and inner curl sinker plate, an upper needle dial for holding the outer and inner curl sinker plate and a jack, and a sinker ring. The sinker ring may drive the outer and inner curl sinker plate to couple with a knitting needle to perform tucking and sinking loop operation for generating loop effect at both sides of the plush fabric. The outer and inner curl sinker plate may be moved smoothly in the jack without hitting the sinker ring and may prevent the sinker ring and outer and inner curl sinker plate from damaging.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: August 7, 2001
    Assignee: Pai Lung Machinery Mill Co., Ltd.
    Inventor: Ping-Shin Wang
  • Patent number: 6223564
    Abstract: A method for producing tubular items, such as hosiery items and the like, which are closed at an axial end, using a single-cylinder circular knitting machine provided with a half-dial which faces, in an upward region, a first half of the needle cylinder and has hooks which can move in a radial direction with respect to the axis of the needle cylinder, each hook being arranged between two contiguous needles of the half of the needle cylinder that it faces. The half-dial can turn over about a diametrical axis of the needle cylinder so that its hooks face the needles of the second half of the needle cylinder. The hooks can move in a radial direction with respect to the axis of the needle cylinder in order to engage portions of loops of knitting formed by the needles of the first half of the needle cylinder before the half-dial turns over and in order to release the portions of loops of knitting to the needles of the second half of the needle cylinder after the half-dial has turned over.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: May 1, 2001
    Assignee: Lonati S.p.A.
    Inventors: Francesco Lonati, Ettore Lonati, Tiberio Lonati, Fausto Lonati
  • Patent number: 6176107
    Abstract: A readily replaceable restricting member is within an annular receiving channel that is defined by a cylindrical portion of a circular knitting machine, and the restricting member is operative to restrict at least upward or downward movement of the sinkers of the circular knitting machine. The sinkers are operative for reciprocating radially relative to the cylindrical portion and the restricting member such that sliding contact is defined between the sinkers and the biased restricting member. In accordance with several of the embodiments of the present invention, each of the sinkers comprises an upper nib and a lower nib, a radially extending slot is defined between the upper nib and the lower nib, and the slot is open at the leading edge of the sinker.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: January 23, 2001
    Assignee: Monarch Knitting Machinery Corp.
    Inventors: Bruce M. Pernick, Philip Renda, Alan Gutschmit
  • Patent number: 6119488
    Abstract: An elongate support body includes each of a plurality of pistons longitudinally translatable to urge movement of a corresponding sinker in a straight bar knitting machine. A piston chamber is disposed within or attached to the support body and includes a translatable piston head disposed therewithin. Each of a plurality of piston cylinders housing the respective ones of the plurality of pistons is in fluid communication with the piston chamber. Upon introduction of a fluid under pressure into the piston chamber on one side of the piston head, fluid pressure will be introduced serially into each piston cylinder to actuate each piston as the piston head translates along the piston chamber.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: September 19, 2000
    Assignee: The RHD Company Limited
    Inventor: Terry Dawn
  • Patent number: 6089047
    Abstract: A double-loop towel may be knitted in either a pile loop or non-pile pattern by a circular knitting machine having an inner pile jacquard mechanism which includes a selector and a selection jack for controlling the knitting operation.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: July 18, 2000
    Assignee: Pai Lung Machinery Mill Co., Ltd.
    Inventor: Ping-Shin Wang
  • Patent number: 5862681
    Abstract: The present invention relates to improved pile fabrics containing courses in which at least two pile forming yarns are meshed across a complete course together cooperatively in various fabric constructions, and respectively into a ground fabric, and forming pile loops one another alternatively in succeeding wales or areas. The fabric is manufactured according to a process in which needles are moved into a feeding position in which they remain, meanwhile in at least two succeeding sections, alternatively, pile elements are selected and raised and after the feeding of a pile yarn are retracted to an intermediate position. The pile yarns are controlled separately from one another and are unaffected in their movement to the loop-forming and meshing action.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: January 26, 1999
    Assignee: TMG Stefalex Handels AG
    Inventor: Walter R. Schmidt
  • Patent number: 5501085
    Abstract: A fabric holding-down sinker for a double knit machine to stop the knitted fabric from being lifted during the raising stitch of the cylinder needles. A series of such presser sinkers are reciprocated radially relative to the cylinder needles, each presser sinker having a projecting sinker head horizontally disposed at a front end. The projecting sinker head is moved to a front limit position spaced above a topmost edge of a fabric formation surface of the knitting machine at a distance equal to the thickness of the fabric being knitted during the raising stitch of the respective cylinder needle, preventing the knitted fabric from being lifted by the cylinder needles.
    Type: Grant
    Filed: October 18, 1994
    Date of Patent: March 26, 1996
    Assignee: Pai Lung Machinery Mill Co., Ltd.
    Inventor: Wan-Yih Chen
  • Patent number: 5477707
    Abstract: A sinker having a sinker body and a butt for engaging a sinker cam. Upper and lower nibs protrude from the sinker body. A first throat is defined between the upper and lower nibs for receiving a yarn. First, second and third knitting platforms are defined by the sinker body beneath the lower nib. A second throat is defined by the lower nib and the second and third knitting platforms for controlling a yarn loop. The second platform may be closer to the first throat than the first platform, and the third platform may be closer to the first throat than the second platform. This progressive displacement of the second and third knitting platforms provides for quick rolling over of a needle latch due to the resultant elevated position of the yarn loop on the needle shaft at desired prints in the knitting operation. This advantage reduces dropped stitches, enables use of a shorter needle latch length while maintaining a desired stitch length at the tie-in, and facilitates higher machine operating speeds.
    Type: Grant
    Filed: December 8, 1994
    Date of Patent: December 26, 1995
    Assignee: Monarch Knitting Machinery Corp.
    Inventors: Philip Renda, James A. Renda
  • 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: 5048313
    Abstract: The invention relates to an improved knitting machine, either with latch needles or with compound needles, in which for each feeding station a thread guide is provided which is placed at a certain distance above the rising zone of the needles and is fitted with a horizontal supporting cam preventing the thread from fluttering while it is fed. The sinkers of the machine are fitted with an additional bearing surface designed to support the thread as it is fed by the thread guide till it is picked up by the needles on their down path immediately after their upward motion.
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: September 17, 1991
    Assignee: Vignoni S.r.l.
    Inventor: Cesare Vignoni
  • Patent number: 5010744
    Abstract: A method of constructing a plated pile knit fabric and sinker therefor is disclosed. The sinker is adapted for low pile formation in the construction of the plating pile knit fabric. Each sinker is obliquely movable from an advanced, lower position to a receded, upper position. A pile position control ledge extends horizontally with respect to the incline of the sinker. The distance between the sinker nose and sinker pile position control ledge is more extended than in a conventional sinker, and as a result, the sinker nose can be positioned lower than that in a conventional sinker so as to form low piles.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: April 30, 1991
    Assignee: Precision Fukuhara Works, Ltd.
    Inventors: Shinji Kawase, Shyozo Yorisue
  • Patent number: 4989421
    Abstract: A method and apparatus for forming pile fabric where the pile loops are controlled during the knock-over action of the needles. The sinker ring mounted sinkers include separate pile and loop forming ledges. The base thread is fed into the throat of the sinker, and with the sinker positioned with their loop forming ledges between adjacent needle stems, the alternate raising different sets of needles to feeding positions and the subsequent retraction to a tuck on the latch position and the subsequent clearing of the pile threads from the loop forming ledges assures that in the knock-over action of the needles the pile loops remain under the control of the pile forming ledges.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: February 5, 1991
    Inventor: Walter R. Schmidt
  • Patent number: 4926660
    Abstract: The methods of knitting the pile jacquard fabric are carried out on a circular knitting machine including needles and sinkers, and a plurality of adjacent yarn feeders. The fabric includes successive courses of plain jersey stitch wales knit of a ground yarn with each successive course also including a first pile loop yarn knit with the ground yarn in selected groups of adjacent wales and forming an individual pile loop in each intervening sinker wale, and a second pile loop yarn knit with the ground yarn in other groups of adjacent needle wales and forming an individual pile loop in each intervening sinker wale. Both the individual pile loops of the first and second pile loop yarns are positioned in side-by-side relationship in adjacent groups in each successive continuous ground yarn course so that the density of the pile loops corresponds with the density of the ground yarn stitch loops.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: May 22, 1990
    Assignee: Precision Fukuhara Works, Ltd.
    Inventor: Yamaoko Takashi
  • Patent number: 4831847
    Abstract: The wear life of knitting machine instrumentalities, such as knitting needles, sinkers, or the like, is increased by providing a reinforcing wear-resistant plate member on the operating butt portion thereof to effectively increase the thickness of the operating butt portion. The wear-resistant plate member includes a cam engaging edge extending along the cam engaging edge of the operating butt portion with the cam engaging edge being inclined at an angle corresponding to the inclined angle of the operating cams of the knitting machine which it is adapted to engage. A beveled edge extends along the junction of the cam engaging edge and the face of the adjacent operating butt portion to form a groove defining an oil retaining sump between the plate member and the operating butt portion for temporarily retaining lubricant therein and for providing lubrication between the operating butt portion and the operating cams.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: May 23, 1989
    Assignee: Precision Fukuhara Works, Ltd.
    Inventors: Shinji Kawase, Toshiro Izumi
  • Patent number: 4763492
    Abstract: Methods for circular weft knitting of variegated articles and selectively programmable circular weft knitting machine apparatus for carrying out such methods including means for effecting selective, controlled two dimensional displacement of compound needle member components and associated sinker elements so as to provide each such needle member with the selectable capability of performing a knit, tuck or float operation at each yarn feed location independent of the direction of knitting needle approach thereto.
    Type: Grant
    Filed: August 28, 1986
    Date of Patent: August 16, 1988
    Inventor: E. C. Tibbals, Jr.
  • Patent number: 4665718
    Abstract: A circular knitting machine for the production of plush goods by means of needles and cooperating sinkers created to form plush and plain loops. The invention improves fabric quality especially when using cotton thread to form plush loops by providing beside the sinker to form plush and plain loops, an auxiliary sinker with a nib to tighten the ready plush loops and with a notch to hold and to pull-down the plush loops from the sinker to form plush and plain loops.
    Type: Grant
    Filed: June 25, 1985
    Date of Patent: May 19, 1987
    Assignee: ELITEX, koncern textilniho strojirenstvi
    Inventors: Jan Jelinek, Bohumir Matousek
  • Patent number: 4612784
    Abstract: A multi-system circular knitting machine for producing jacquard-patterned one-face plush webs of one main thread and at least one plush thread has a needle cylinder provided with a plurality of needles, a plate ring provided with pairs of controllable loop-sinking plates and knockover plates, and needle and plate controlling cams each system of the machine is subdivided into a series of system portions. The main thread is inserted in a needle and processed exclusively in the first system portion. The controlling cams are formed such that only the knockover plates are withdrawn from the first system portion, while in the last system portion, both the knockover plates and the loop sinking plates are withdrawn from the working zone.
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: September 23, 1986
    Assignee: Sipra Patententiwcklungs-und Beteiligungs-Gesellschaft
    Inventor: Ernst-Dieter Plath
  • Patent number: 4519221
    Abstract: A circular knitting machine includes a cylinder spacedly provided with vertical slits on its overall circumference, and sinkers and knitting needles alternately mounted in every other slit of the cylinder. Each one of the sinkers is formed on its bottom side with a cutout so that a sinker selection jack moving up and down within the slit pushes the slant front edge of the cutout to move the sinker horizontally, or towards the center of the cylinder. With the structure, the movements of the sinker can be individually controlled to form a pile patterning and reversed patterning.
    Type: Grant
    Filed: September 8, 1983
    Date of Patent: May 28, 1985
    Assignee: Okamoto & Co., Ltd.
    Inventor: Hideo Hirano
  • Patent number: 4346572
    Abstract: A process for knitting a single-faced pile fabric is disclosed, based on the raising and lowering of conventional needles and the movement of throated sinkers, each sinker having the throat extended and provided with a sloping shoulder in the lower edge thereof, a re-entrant bevel on the upper leading edge, a downwardly extending surface and a notch on the upper edge.
    Type: Grant
    Filed: June 29, 1979
    Date of Patent: August 31, 1982
    Assignee: Jumberca, S.A.
    Inventor: Jose M. D. Guell
  • Patent number: 4314461
    Abstract: A knitting machine includes latchless needles, and selector elements located in positions corresponding therewith. Each selector element comprises a hook-like extension directed towards the needle point and arranged to penetrate into a longitudinal slot in the needle. The selector elements are subjected to sliding movements approximately perpendicular to the needles, together with lifting and lowering movements so that they penetrate into the needle slot, and are lifted in order to take-up the stitch engaged by the needle and to remove it therefrom. Alternatively the selector element can abandon the stitch by lowering its hook-like extension below the plane of formation of the fabric.
    Type: Grant
    Filed: December 14, 1979
    Date of Patent: February 9, 1982
    Inventor: Gianni Conti
  • Patent number: 4245487
    Abstract: A sliver loop knit fabric comprising a base fabric formed of knitted courses and wales and anchoring a plurality of tufts of sliver fibers, the free ends of which are incorporated into at least two courses and two wales of the fabric to provide a generally loop pile fabric. The fabric is knit on a circular jersey fabric knitter equipped with a plurality of fiber feeding cards. The knitter also is equipped with pneumatic means for directing jets of compressed air generally radially outward of the needles of the knitting machine. The jets of compressed air blow the free ends of the tufts of sliver fibers on the needles outwardly of the needle circle, and onto the tops of the sinkers, preparatory to incorporating the ends of the tufts into the fabric during knitting. The bulk of the free ends are incorporated into the fabric in the form of knitted stitches.
    Type: Grant
    Filed: June 6, 1979
    Date of Patent: January 20, 1981
    Inventors: Rudolph S. Schaab, John C. Harralson
  • Patent number: 4194374
    Abstract: A process for knitting a single-faced pile fabric is disclosed, based on the raising and lowering of conventional needles and the movement of throated sinkers, each sinker having the throat extended and provided with a sloping shoulder in the lower edge thereof, a re-entrant bevel on the upper leading edge and a notch on the upper edge.
    Type: Grant
    Filed: May 11, 1978
    Date of Patent: March 25, 1980
    Assignee: Jumberca, S.A.
    Inventor: Jose M. D. Guell
  • Patent number: 4180993
    Abstract: A method and apparatus for drawing and knitting yarn on a circular knitting machine which includes a needle cylinder, a sinker ring fixedly mounted on the cylinder and having a plurality of equally spaced, radially extending sinker grooves. Each groove contains a sinker having a step on its bottom surface adjacent the cylinder end of the sinker. The ring includes a well adjacent the needle cylinder and a shelf between the well and the sinker grooves. A cam occurs on the ring for sequentially moving the sinkers, one after the other, radially toward and radially away from the cylinder so that the bottom surfaces and steps on the sinkers engage the bottom surface and shelf of the sinker groove when the sinkers are moved radially inward to lower the needle cylinder end of each sinker and to raise the needle cylinder end of the sinker when the sinkers are moved radially outward. A guide is on the cam for engaging the sinker and guiding the sinker downwardly to engage the sinker step in the sinker ring well.
    Type: Grant
    Filed: October 12, 1978
    Date of Patent: January 1, 1980
    Inventor: Morris Philip
  • Patent number: 4103518
    Abstract: The invention comprises an improved knitting apparatus for producing knit fabrics on which terry loops are provided at least on the technical front face thereof. The terry loops are interconnected or knitted jointly with the ground yarn into the base fabric so that they are securely held therein. Novel sinker elements are used to control the positioning of the fabric as it is knit with the sinker elements serving to initially support the fabric at a level high enough to allow loops to be formed in the front face, with the sinker element thereafter forcing the fabric and just formed loops down into the sinker throat away from any possible scissoring action between the needle cheeks and the cooperating latch.
    Type: Grant
    Filed: May 13, 1977
    Date of Patent: August 1, 1978
    Assignee: Jumberca S.A.
    Inventors: Victor J. Lombardi, Jose M.sup.a Dalmau
  • Patent number: 4040276
    Abstract: Sinker cam segment having its ends beveled at a compound angle, so that the end surfaces are in a plane having no elements which are either radial or axial with reference to the center line of the cam ring on which the segment is used.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: August 9, 1977
    Assignee: Bunker Ramo Corporation
    Inventor: Ralph A. Koegel
  • Patent number: 4038838
    Abstract: The invention comprises an improved apparatus and method for producing knit fabrics having terry loops on both the technical front and technical back sides of a ground fabric in which the terry loops are interconnected or knitted jointly with the ground yarn into the base fabric and are thus securely held therein. Novel needle latch arresting elements and improved sinker designs eliminate severing of previously formed loops incorporated in the ground fabric.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: August 2, 1977
    Assignee: Jumberca, S.A.
    Inventors: Victor J. Lombardi, Jose M.sup.a Dalmau