Separate Cam Paths Patents (Class 66/38)
  • Publication number: 20100095711
    Abstract: A method and apparatus are provided for forming a tubular-shaped knitted covering for a paint roller, or the like, having a pile extending from an outer surface of the covering, through use of a dial needle knitting arrangement. A cylinder needle knitting arrangement may be utilized in conjunction with the dial needle knitting arrangement for forming a tubular-shaped knitted covering for a paint roller having a pile formed from a combination of sliver and yarn fibers in successive courses of the tubular-shaped knitted covering.
    Type: Application
    Filed: December 21, 2009
    Publication date: April 22, 2010
    Applicant: SEAMLESS TECHNOLOGIES, LLC
    Inventors: John Cecil Knight, SR., Daniel L. Sinykin
  • Publication number: 20100011816
    Abstract: A circular knitting machine for hosiery or the like, comprising a needle cylinder with vertical axis and multiple axial surface slots, each of which accommodates a needle and an actuation element for the needle. The actuation element comprises at least one connecting element. The connecting element is provided with a radially extractable movable heel, that engages connecting element actuation cams facing the lateral surface of the needle cylinder. The cams comprise at least one extraction cam or one retraction cam, which has a portion whose profile is inclined with respect to an ideal plane perpendicular to the axis of the needle cylinder. The machine comprises extraction means causing extraction of the movable heel and keeping thereof in extracted position over the entire extension of the portion having an inclined profile of the extraction cam or of the retraction cam.
    Type: Application
    Filed: March 27, 2007
    Publication date: January 21, 2010
    Applicant: LONATI S.P.A.
    Inventors: Ettore Lonati, Tiberio Lonati, Fausto Lonati, Jan Ando
  • Patent number: 7207196
    Abstract: A circular knitting machine, comprising a footing with a vertically rotatable needle cylinder with a diameter comprised between 7 and 24 inches, and multiple axial needle accommodation slots; an actuation for actuating the needles, during rotation of the needle cylinder to form knitting with at least one yarn dispensed to the needles at least one drop or feed of the machine. The needle cylinder is rotatable about the axis in both directions of rotation and the needle actuator allows the needles to form knitting in both directions of rotation of the needle cylinder at least one drop or feed of the machine.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: April 24, 2007
    Assignee: Santoni S.p.A.
    Inventors: Ettore Lonati, Fausto Lonati, Tiberio Lonati
  • Patent number: 6205821
    Abstract: A circular stocking knitting machine, in which, in addition to the knitting cams, two ascent and descent cams alternating depending on the direction of rotation are provided for the knitting operations with reciprocating motion. Two selection units, which select the needles during a same forward stroke of the cylinder, are additionally provided.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: March 27, 2001
    Assignee: Sangiacomo S.p.A.
    Inventor: Fulvio Sangiacomo
  • Patent number: 5682770
    Abstract: A jacquard mechanism mounted in a circular knitting machine for knitting a jacquard fabric, including a fixed selector cam for guiding a knitting needle in a fixed track, a needle selector controlled to raise the knitting needle into a tucking track for a jacquard knitting operation, a movable selector cam moved in a sliding slot in the fixed selector cam to open/close the tucking track, and a driving mechanism controlled to move the movable selector cam in the sliding slot of the fixed selector cam.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: November 4, 1997
    Inventor: Ping-Shin Wang
  • Patent number: 5526655
    Abstract: A cam mechanism and method in a circular knitting machine having at least two types of knitting needles each having a master butt and at least two selector butts and including a stitch cam for engaging the master butts and retracting the needles from the knitting and tucking positions to the stitch-forming level, and knitting, tucking and welt-guarding cams movable between extended operative positions and retracted inoperative positions, and a selection device for individually selecting and moving the knitting, tucking and welt-guarding cams between the operative and inoperative positions.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: June 18, 1996
    Assignee: Precision Fukuhara Works, Ltd.
    Inventor: Yukiari Iida
  • Patent number: 5426957
    Abstract: A method of knitting single knit fabrics on a circular knitting machine such that the fabric has improved elasticity, soft hand and drapeability and including controlling two types of needles arranged alternately in the cylinder and sinkers arranged in the sinker dial through four processes in which alternate needles are raised to the knitting level in the first process and intervening needles are raised to the tucking level and an old loop has cleared the latch on each needle and a previously fed yarn is held in the hook of each intervening needle, a first ground yarn is fed to the alternate and intervening needles and the needles are lowered to a high welt level for the alternate needles so that the old loop is not knocked over and a low welt level for the intervening needles so that the old loop is knocked over and a new double yarn stitch loop is formed. The levels to which the alternate and intervening needles are raised are reversed in the third process.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: June 27, 1995
    Assignee: Precision Fukuhara Works, Ltd.
    Inventor: Takashi Yamaoka
  • Patent number: 5417086
    Abstract: A lock arrangement for a knitting machine, which comprises knitting implements (3, 3a) mounted to slide in a longitudinal direction (w), with working and control butts (6, 6a; 7, 7a). The lock arrangement (8) includes a take-down lock part (61) associated with the control butts (7, 7a), slidable in the longitudinal direction (w) and each adjustable into an advanced and a retracted position, these lock parts being provided with raising cams (43, 46) running obliquely to the longitudinal direction (w), arranged one after the other and raising the knitting implements (3, 3a) into a tuck position or a knit position, as well as with hold-down cams (42, 45) running transverse to the longitudinal direction (w). In accordance with the invention the slidable lock parts (10, 10a; 11, 11a) are so constructed and arranged that selected raising cams act in their retracted position on the control butts (7, 7a) and selected hold-down cams (42, 45) act in their advanced position on the control butts (7, 7a ). (FIG. 8).
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: May 23, 1995
    Assignee: SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH
    Inventor: Ernst-Dieter Plath
  • Patent number: 4920767
    Abstract: A circular knitting machine has at least one needle carrier, and a plurality of slide needles having a head portion with a head and a slide portion with a tip. Sinkers cooperate with the slide needles, a plurality of knitting systems are arranged along the needle carrier, and a control is provided at the knitting systems for causing relative movements of the needle portions, the slide portions, and the sinkers for performing knitting, tacking and running-through operations. The control includes at each of the knitting systems a sinker cam curve for controlling the sinkers, a slide portion cam curve for controlling the slide portions, and a head portion cam curve for controlling the head portions. The slide portion cam curves have portions for raising and lowering the slide portions in a same manner irrespective of performance of knitting, tucking, or non-knitting operation of the systems.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: May 1, 1990
    Assignee: Sipra Patententwicklungs-und Beteiligungsges. dmbH
    Inventors: Ernst-Dieter Plath, Kurt Juenthner
  • Patent number: 4706474
    Abstract: A plain or patterned high-pile or sliver-knit fabric is manufactured on a circular knitting machine which has a cylinder carrying latch needles, horizontally movable sinkers and a carding cloth to comb-in pile fibers to the latch needle hooks during knitting of a base fabric before the base threads are fed to the needles. The needles receiving the combed-in pile fibers are raised at the start of combing-in to a level at which the tips of the latches of the raised needles are positioned below the knock-over or knitting edges of the sinkers and the stitches of a previously knitted course of the fabric remain on the latches. The pile fibers are combed-in at this level.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: November 17, 1987
    Assignee: Karl Eybl Gesellschaft m.b.H.
    Inventor: Walter R. Schmidt
  • Patent number: 4019348
    Abstract: A circular knitting machine and method of knitting in which the machine has a knitting cam track, an idle track and means for transferring selected needles from one track to the other, the machine having at least one set of needles movable through a knitting cycle by the cams in said knitting cam track and movable rearwardly to an inactive position in said idle track.
    Type: Grant
    Filed: May 14, 1975
    Date of Patent: April 26, 1977
    Inventor: Morris Philip
  • Patent number: 3996769
    Abstract: An improvement in multi-feed circular knitting machines wherein the knitting needles are adapted to assume knitting and non-knitting conditions and whereas the jacks are suspended in the knitting needles in an articulated manner. The cam clyinder is provided with a needle lowering cam at each cam system. Each jack has at least one butt adapted to be engaged by the needle lowering cam when the corresponding jack has been swivelled on to the cam cylinder. The improvement comprises the construction and the manner of interaction of the butts and the needle lowering cam. The butts are arranged on the swivellable jacks and are selectively adapted to be pivoted away from the cam cylinder by means of a special pivoting device in each system when the corresponding needle is to misknit, that is in advance of the needle lowering cam of the system and are adapted to be swivelled back to their original position by special means immediately after having passed the needle lowering cam.
    Type: Grant
    Filed: December 19, 1974
    Date of Patent: December 14, 1976
    Assignee: C. Terrot Soehne
    Inventors: Alfred Schindele, Gerhard Mueller
  • Patent number: 3967468
    Abstract: A cylinder and dial type circular knitting machine not operable in interlock gating because of interference between cylinder and dial needles is provided with needles and needle controlling camming enabling the machine to produce interlock fabric in interlock gating.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: July 6, 1976
    Assignee: The Singer Company
    Inventor: John Christopoulos