Patents Examined by Ronald Feldbaum
  • Apparatus for laying transverse weft threads for a warp knitting machine
    Patent number: 4677831
    Abstract: A method and an apparatus for laying groups of transverse weft threads for a warp knitting machine, the threads being laid on two longitudinal conveyors running to the needle bed by means of a carriage which is reciprocated between and transversely to the direction of travel of the longitudinal conveyors. The weft threads laid after the forward movement lie parallel to the weft threads laid after the backward movement and with the same spacing from the adjacent weft thread in each case. First groups of weft threads are laid as a first layer and then groups of weft threads are laid as a second layer on the first layer in a direction of their weft threads which forms, with the direction of the weft threads of the first layer, an angle, particularly of at least 20.degree., which opens transversely to the direction of travel of the longitudinal conveyors.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: July 7, 1987
    Assignee: LIBA Maschinenfabrik GmbH
    Inventor: Roland Wunner
  • Liquid aspirator vacuum attachment
    Patent number: 4675936
    Abstract: The use of liquid aspirators which are connected to conventional vacuum cleaners is known. In this invention the body exists of two separate body parts which are held together by a filter cartridge. The said rear body piece is provided with an extended tube in which a hose from a conventional vacuum cleaner inserts. Also said rear body piece holds a cartridge containing a filter and filter support where liquid is filtered through. The front said body piece acts as the liquid reservoir and is provided with a tube connected to the front nozzle of said body part extending along the top of said body part and protruding through the filter cartridge to the back of rear body part. The liquid aspirated by suction of vacuum cleaner is discharged to the rear of assembled unit.
    Type: Grant
    Filed: November 25, 1985
    Date of Patent: June 30, 1987
    Inventor: Mark W. Rawlins
  • Hand held gas engine blower
    Patent number: 4674146
    Abstract: A hand held portable blower/vacuum assembly includes a gasoline engine mounted on a blower housing that is interchangeably operable as a blower or vacuum unit and is symmetrically arranged for right or left hand use. A U-shaped carrying handle is secured to an upper housing enclosing the engine by means of a mounting structure that includes anti vibration elements. For eliminating the effect of both gyroscopic and centrifugal forces, the engine is arranged with the piston and crankshaft in horizontal and vertical orientations respectively, while both exhaust and cooling air are discharged from the front of the unit away from an operator so as to provide a balanced unit operable with either the right or left hand. A multi-position throttle located on the backside of the unit removed from the handle is incrementally settable for operating the unit at preselected fixed speeds.
    Type: Grant
    Filed: December 3, 1985
    Date of Patent: June 23, 1987
    Assignee: Emerson Electric Company
    Inventors: Lloyd H. Tuggle, Michael Baker, Jeffery S. Franke
  • Warp knitting machine
    Patent number: 4674302
    Abstract: An improved warp knitting machine employing compound needles and an interconnected trick-sinker mechanism which maintains a fixed relationship with the knitting needles and tends to hold the knitted fabric in line with the back guide bar to lessen the stress on the knitting needles. Each of the guide bars include a hollow guide tube to guide the warp yarn to a point closely adjacent the top of the knitting needle to reduce the necessary vertical stroke of the knitting needles.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: June 23, 1987
    Assignee: Milliken Research Corporation
    Inventor: Bascum G. Lesley
  • Antistatic cover
    Patent number: 4672825
    Abstract: An antistatic cover is composed of a tubular knitted fabric comprising water-shrinkable or heat-shrinkable ground yarns which are alternately knitted to form a needle loop in a course of a ground fabric so that each sinker loop of the ground fabric has a width longer than that of the needle loop, at least one of the ground yarns comprising charge control fibers or electrically conductive fibers. Pile yarns may be worked into each course of the ground fabric by alternately knitting together with a needle mesh of the ground fabric to form a needle loop. At least one of the ground yarns and pile yarns comprises charge control fibers or conductive fibers.
    Type: Grant
    Filed: December 6, 1985
    Date of Patent: June 16, 1987
    Assignee: Katsura Roller Mfg. Co., Ltd.
    Inventors: Akio Yasukawa, Yoshihiro Misuna
  • Flat bed knitting machines
    Patent number: 4672824
    Abstract: A flat-bed knitting machine has yarn restraining devices (10) disposed adjacent opposite ends of the stroke of its cam box (4) for controlling the supply of yarn (Y) to the needles so that no loops are formed at the edges of the knitted fabric produced on the machine and no tension is applied to the yarn by the devices while the rows of stitches are being knit. Each device (10) comprises a spring arm (12) for engaging with a cooperating flat surface (17) on the top of the cam box (4) during movement thereof over a predetermined end portion of the stroke and for trapping the yarn (Y) between the arm (12) and the surface (17). The arm (12) is adapted to retain the yarn so trapped as the cam box (4) commences a reverse stroke and until the yarn is re-engaged by the cam box with the adjacent working needle, whereupon a pull is exerted on the yarn to release it as the cam box commences a fresh row of stitches.
    Type: Grant
    Filed: August 1, 1986
    Date of Patent: June 16, 1987
    Inventor: Roger F. N. Curry
  • Looper apparatus for equalizing the legs of cut pile tufts
    Patent number: 4671194
    Abstract: A looper apparatus for a multiple needle tufting machine in which the bill of each cut pile hook is shaped to have a rear straight cutting portion and a free end portion transversely offset from the cutting portion to seize a loop from a corresponding needle and guide the loop along a path offset from the normal longitudinal row of stitching in order to extend the side of the loop on the cutting side of the hook so that, when the loop is cut, the legs of the cut pile tuft will be substantially equal.
    Type: Grant
    Filed: July 11, 1986
    Date of Patent: June 9, 1987
    Assignee: Tuftco Corporation
    Inventors: Stephen L. Frost, Charles W. Watkins
  • Drive for a tufting machine
    Patent number: 4669403
    Abstract: A tufting machine has a needle bar drive mechanism including a first shaft on which drive eccentrics are mounted for driving connecting rod means which reciprocate the needle bar push rods and thus the needle bar. A second shaft is mounted adjacent the first shaft and gears mounted on the respective shafts are in meshing engagement with each other so that upon rotation of one shaft the other shaft rotates in the opposite direction. Counterbalancing weights on the needle bar driving shaft are disposed 180.degree. out of phase with the reciprocation of the needle bar, and counterbalancing weights on the other shafts counterbalance the rotational forces of the needle bar driving shaft. The other shaft is drivingly rotated by the tufting machine motor and also carries the hook and knife drive eccentrics. The construction is such that the reciprocating and rotating forces are counterbalanced by the two shafts.
    Type: Grant
    Filed: July 18, 1986
    Date of Patent: June 2, 1987
    Assignee: Spencer Wright Industries, Inc.
    Inventor: Arthur Bagnall
  • Apparatus and method for manufacturing embroidered carpets
    Patent number: 4669406
    Abstract: The present invention provides an apparatus for manufacturing an embroidered carpet. This apparatus is such that pile yarn is dipped into a substrate cloth with a hook device to form a surface of the carpet which comprises means for driving said hook device along a memorized pattern so as to efficiently manufacture an embroidered carpet with a varigated design which has heretofore been manufactured only manually.
    Type: Grant
    Filed: July 30, 1986
    Date of Patent: June 2, 1987
    Assignee: Sun Carpet Company, Ltd.
    Inventor: Takashi Muroya
  • Camholder for a flat-bed knitting machine and knitting machine equipped with such a cam holder
    Patent number: 4669280
    Abstract: The camholder possesses at least one section having an axis of symmetry (A) passing through the center of a first sinker selection cam (14) and through the center of a needle transfer cam (25). The transfer cam (25) is retractable by means of a control device. Arranged on either side of the axis of symmetry (A) are sinker selection cams (15, 16), taker-up cams (17, 18), loom-style cams (19, 20) and transfer and receiving cams (21, 22). All these cams, arranged between the selection cams, are automatically retractable. The camholder has a single type of drop, and it makes it possible in one and the same drop to carry out both knitting and stitch transfer forwards or backwards and in both directions of movement of the carriage.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: June 2, 1987
    Assignee: Atelier de Construction Steiger S.A.
    Inventors: Marcello Baseggio, Gerard Steiger, Louis P. Frund
  • Dust extraction equipment for flat bed knitting machines
    Patent number: 4667489
    Abstract: In the present invention, the entire equipment, a suction blower with drive motor, suction nozzles (1) directed towards the needle beds (2) and at least one due collecting chamber (5) for the dust extraction device for flat bed knitting machines, is arranged on the machine carriage (14/15).For this, a dust collecting chamber (5) is designed within the inner space of a hollow carriage bracket (14,15) and the collected fibre dust or lint can be compacted and discharged by means of a conveyor screw (45).
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: May 26, 1987
    Assignee: H. Stoll GmbH. & Co.
    Inventors: Herbert Seitz, Eugen Frosch
  • Device for the selection of the sinker and needle assemblies of an automatic flat knitting machine
    Patent number: 4667488
    Abstract: A device made in a carriage of an automatic flat knitting machine, consists of a plurality of identical consecutive units 100, each of which is located between a plane of symmetry of two groups of movable cams and a plane of symmetry of two first fixed cams designed to select sinkers arranged in the bottom middle section of as many slots made in a needle beds; in each slot there is a needle above the sinker.Each unit is made up of fixed and movable cams which operate in combination with the groups of cams and the first fixed cams to make plain stitches, and carryover stitches and to transfer and receive a stitch to and from another needle bed.It is also possible to control the density of the fabric and carry out the "three-way technique" using a first row of needles which make the plain stitch, a second row of needles which make the carryover stitch and a third row of needles kept in rest position.
    Type: Grant
    Filed: August 12, 1986
    Date of Patent: May 26, 1987
    Assignee: E.M.M. Emiliana Macchine Maglieria S.R.L.
    Inventor: Benito Stoppazzini
  • Moldable warp knitted fabric
    Patent number: 4667490
    Abstract: A moldable, fabric is provided which is adapted to be used in conjunction as a molded, brassiere cup. The fabric is warp knitted on a two bar warp knitting machine and includes front and back guide bar yarns which are knitted in opposite directions relative to each other in at least a two course knitting operation. At least one of the yarns is a monofilament yarn. The front guide bar yarn is a multifilament yarn and the back guide bar yarn is a monofilament yarn with the back guide bar yarn having a knit stitch configuration of 2/0-1/3 and the front guide bar yarn having a knit stitch configuration of 3/4-1/0.
    Type: Grant
    Filed: January 3, 1986
    Date of Patent: May 26, 1987
    Assignee: International Playtex, Inc.
    Inventor: Shantilal G. Patel
  • Warp knitting machine for diagonally layable threads
    Patent number: 4665721
    Abstract: There is provided a warp knitting machine for diagonally laying warp threads with thread guides that circulate around a continuous pathway. The warp threads are taken from spools located on a fixed creel and are led through a fixed thread feed arrangement located above the circulating path. The frame is rotatable about a perpendicular turning axis in a direction opposite to the direction of rotation of the thread guides. These rotations have the same circuit times. In this way it is possible to provide long time intervals between the stopping times necessary for the replacement of the spools. It also allows the use of many different types of thread material.
    Type: Grant
    Filed: August 8, 1986
    Date of Patent: May 19, 1987
    Assignee: Karl Mayer Textilmaschinenfabrik GmbH
    Inventors: Rolf Naumann, Gerhard Hittel
  • High speed tufting machine
    Patent number: 4665845
    Abstract: The head of a tufting machine frame journals a plurality of transversely spaced push rods, the lower end of which carries a needle bar and its needles. The upper end of each push rod has an individual drive assembly which includes a sidewise extending drive pin pivotally connected to a connecting rod reciprocated by an eccentrically mounted pivot pin protruding from the face of a crank member which is removeably mounted on a driven wheel carried by a stub shaft. A timing belt, connected over the driven sprocket, is itself driven by one of a plurality of drive wheels on a main drive shaft.
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: May 19, 1987
    Assignee: Card-Monroe Corporation
    Inventors: Roy T. Card, Joseph L. Card
  • Circulating thread guides
    Patent number: 4665719
    Abstract: There is provided a lapping arrangement with circulating thread guides for a warp knitting machine. The arrangement has carriers for the thread guides. A transport arrangement moves the carriers in a guide means comprising two parallel segments connected by two turning segments. In the location of the parallel segments the transport arrangement comprises two forwarding helices in whose helical thread ride rollers which are attached to the carriers. In this way, a precise positioning of the thread guides is possible.
    Type: Grant
    Filed: August 8, 1986
    Date of Patent: May 19, 1987
    Assignee: Karl Mayer Textilmaschinenfabrik GmbH
    Inventor: Rolf Naumann
  • Latch needle for Raschel machine
    Patent number: 4665717
    Abstract: A latch needle for a Raschel machine having a branch stem branched from a portion are side of the stem below the latch so as to extend downward substantially in parallel to the lateral side of the stem, and having a thickness greater than that of the stem.
    Type: Grant
    Filed: February 26, 1986
    Date of Patent: May 19, 1987
    Assignee: Nakagawa Seisakusho Co., Ltd.
    Inventor: Kurokawa Atsushi
  • Method of manufacturing knitted briefs
    Patent number: 4663946
    Abstract: A plurality of brief blanks are knitted interconnected in side-by-side relationship upon a circular knitting machine. The tube is then slit, either on or off the knitting machine, to sever the interconnection, the slit portions being then coursewise separated to provide a plurality of brief blanks of the required form.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: May 12, 1987
    Assignee: Incotex B.V.
    Inventor: Kenneth Wright
  • Mechanism to produce irregular effects in warp knitting
    Patent number: 4663947
    Abstract: A mechanism to produce irregular effects in warp knitting on a conventional machine having a rotary camshaft which controls movement of a fork engaged with the yarn. A mechanical device selectively and independently controls translatory movement of the camshaft in two transverse directions to respectively vary the depth and intermittency of the yarn tension.
    Type: Grant
    Filed: January 24, 1986
    Date of Patent: May 12, 1987
    Inventor: Ramon A. Rodo
  • Tufting machine sliding needle bar support
    Patent number: 4662291
    Abstract: A tufting machine has a needle bar for carrying a plurality of needles for reciprocating into and out of a base material. A sliding needle bar mechanism may shift the needle bar laterally according to a pattern. The needle bar is mounted for reciprocation and for lateral movement relative to the direction of reciprocation by apparatus having a foot secured to a respective push rod of the tufting machine and laterally extending guide rods clamped to the foot. Blocks having linear bearings or bushings are secured to the needle bar and receive the guide rods so that upon lateral movement of the needle bar by means of the shifting apparatus the needle bar moves relative to the guide rods. This reduces the weight of the laterally moving mass and permits greater shifting speeds.
    Type: Grant
    Filed: July 18, 1986
    Date of Patent: May 5, 1987
    Assignee: Spencer Wright Industries, Inc.
    Inventor: H. Brian Bardsley