Wire Twisting Patents (Class 140/149)
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Patent number: 7458242Abstract: An apparatus for manufacturing a cable bolt from a cable (1) includes first and second clamps (2, 3) adapted to releasably clamp the cable (1) with the cable (1) extending along the longitudinal axis (4) of the apparatus. A first cable displacement device (12) longitudinally displaces the first clamp (2) relative to the second clamp (3) along the longitudinal axis (4). A first clamp rotation device (14) rotates the first clamp (2) relative to the second clamp (3) about the longitudinal axis (4). The apparatus also has a second clamp displacement device (19) for simultaneously longitudinally displacing the first and second clamps (2, 3) along the longitudinal axis (4).Type: GrantFiled: September 6, 2005Date of Patent: December 2, 2008Assignee: Dywidag-Systems International Pty LimitedInventors: Mieczyslaw S. Rataj, Alan Henderson, Albert Taylor
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Patent number: 7412993Abstract: A medical apparatus is fabricated by providing a coil that has a plurality of primary loops along a longitudinal direction, and for each of one or more of the primary loops, forming one or more secondary loops on the primary loop.Type: GrantFiled: March 9, 2004Date of Patent: August 19, 2008Inventor: George Tzong-Chyi Tzeng
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Publication number: 20080092982Abstract: A novel wire twister apparatus and method provide a reliable, one hand powered tool having no moving parts to make uniform and tight electrical conductor connections ready for insulating nuts or caps. The novel wire twister is used by either professional or novice on 2-6 solid 10-14 gauge wires in either standard and awkward work positions. A hand-powered wire twister and method of the present invention include means and method for providing a handle, a wire twisting member connected to the handle, and a plurality of wire receiving apertures in one end of the wire twisting member having a fixed number of interchangeable wire receiving apertures.Type: ApplicationFiled: October 19, 2007Publication date: April 24, 2008Inventor: Charles E. Erickson
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Publication number: 20080060833Abstract: A plurality of individual elements are imparted with reverse axial twist and collectively twisted into a multi-element assembly. Each individual element has an axial twist direction in an opposite direction from the axial twist direction of the collective multi-element assembly. The reverse axial torsion in the assembly tightly binds the plurality elements in the assembly to resist separation.Type: ApplicationFiled: September 11, 2007Publication date: March 13, 2008Inventors: Stephen Spruell, Wilber F. Powers, Scott Robertson
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Patent number: 7283891Abstract: A robotic bending apparatus for bending archwires and other types of elongate, bendable medical devices into a desired configuration includes a first gripping tool and a moveable gripping tool. The first gripping tool can be either fixed with respect to a base or table for the robot or positioned at the end of robot am. The moveable gripping tool is mounted to the end of a moveable robot arm having a proximal portion also mounted to the base. The robot preferably comprises a six axis bending robot, in which the distal end of the moveable arm can move relative to the fixed gripping tool about three translational axes and three rotational axes. The gripping tools preferably incorporate force sensors which are used to determine overbends needed to get the desired final shape of the archwire. The robot may also include a resistive heating system in which current flows through the wire while the wire is held in a bent condition to heat the wire and thereby retain the bent shape of the wire.Type: GrantFiled: October 27, 2005Date of Patent: October 16, 2007Assignee: OraMetrix, Inc.Inventors: Werner Butscher, Friedrich Riemeier, Rüdger Rubbert, Thomas Weise, Rohit Sachdeva
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Patent number: 7198069Abstract: A device and method for rotary manipulation of a plurality of wires for untwisting wires in armor shielded electrical cable installations. The device and method for rotary manipulation of a plurality of wires includes a shank portion, a pair of opposing jaw members, and a biasing member. The shank portion is designed for being received in a chuck of the conventional reversible drill. The pair of opposing jaw members are operationally coupled to the shank portion. Preferably, each one of the pair of opposing jaw members includes an arm portion and a face portion designed for engaging a plurality of wires. The biasing member urges a first one of the pair of opposing jaw member to abut a second one of the pair of opposing jaw members.Type: GrantFiled: December 19, 2003Date of Patent: April 3, 2007Inventor: Karl Griffith
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Patent number: 7124786Abstract: Linesman type pliers (10) that have provisions for splicing wires together. The pliers (10) have a right body (20) with a first jaw (22) on one end, and a handle (24) on the other end, and a pivotal bore (26) in-between. The first jaw (22) includes a truncated, tapered recess half (28) that is configured to receive an outward-extending stop and the provisions for gripping wire. A left body (32) has a similar jaw, handle, bore and truncated tapered recess half, except with an outward-extending stop (38) on the inner end. A pivot pin (42) is jointly disposed within bores (26) and (36), thus forming a solid-joint that arcuately swivels the right body (20) and left body (32) together into parallel and adjacent alignment. When the jaws are closed a complete, annular, truncated tapered recess (44) is formed that allows insertion of a number of stripped wires that form a twisted splice when the pliers are manually rotated around the stationary wires.Type: GrantFiled: February 16, 2005Date of Patent: October 24, 2006Inventor: Jacob F. Gowhari
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Patent number: 7104287Abstract: Wire-untwisting tools and tool bits are disclosed. The wire-untwisting tool comprises a tool body, a movable member, and a spring. The tool body has a first channel extending inwardly from a first surface and a second channel extending inwardly from a second surface. The movable member includes a third channel, and is positioned within the second channel to move therein between an open position, in which the first and third channels are substantially aligned and contiguous, and a gripping position, in which they are not. The spring bears between the tool body and the movable member so and biases the movable member toward the gripping position. A pair of twisted wires inserted into the aligned channels of the tool body and the movable member when the movable member is pushed into the open position will be gripped for untwisting when the movable member moves back to the gripping position.Type: GrantFiled: July 26, 2005Date of Patent: September 12, 2006Inventor: Thomas Schmitz
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Patent number: 6997604Abstract: A temperature sensor comprising: a housing; a thermo-sensitive element housed in the housing for outputting electric characteristics varying with a temperature, as an electric signal; and a pair of lead wires connected at their one-side ends with the thermo-sensitive element for extracting the electric signal from the thermo-sensitive element to an outside of the housing, wherein at least one of the lead wires is made of a mixed twisted wire including: first electric wires made of a first conductor containing copper; and second electric wires made of a second conductor having a higher bending resistance and a tensile strength than those of the first conductor.Type: GrantFiled: January 7, 2004Date of Patent: February 14, 2006Assignee: NGK Spark Plug Co., Ltd.Inventors: Go Hanzawa, Masahiko Nishi, Masaki Iwaya, Takaaki Chosokabe
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Patent number: 6971415Abstract: Bulges in a wire having helically coiled strands are formed by untwisting the strands in an anti-helical direction at a predetermined position, to form an electrical connector from a length of the stranded wire. The wire is gripped by moving two spaced apart clamp members to a closed position and thereafter rotating the clamp members relative to one another in at least one complete relative revolution in a direction which is anti-helical relative to the coiled strands to form the bulge. The wire is gripped and rotated in the anti-helical direction for a relative rotational interval of greater than one-half, and preferably three-fourths, of a complete relative revolution. Thereafter, during the remaining rotational interval of each relative revolution, the clamp members are opened to permit the wire to be advanced to the next position where a bulge is to be formed.Type: GrantFiled: March 2, 2004Date of Patent: December 6, 2005Assignee: Medallion Technology, LLCInventors: Steven E. Garcia, James A. Harden, Jr.
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Patent number: 6904670Abstract: A frame jig for a connector is provided in order to be able to easily confirm the kinds of electric wires to be inserted in a connector and the installation locations. The frame jig for a connector includes a holder having a recess and apertures adjacent every location that confronts a respective cavity of the connector retained in the recess. Additionally, at the peripheral rim of the recess at the upper face of the holder, side recesses are provided on the side faces of the holder. First ends of sample electric wires are inserted in the apertures which confront the installation cavities of the corresponding kinds of electric wires to be installed in the connector. The other end of the sample wires inserted into recesses formed in sides of the holder, and locking members are inserted into the side recesses.Type: GrantFiled: May 22, 2001Date of Patent: June 14, 2005Assignee: Sumitomo Wiring System, Ltd.Inventors: Hiroshi Kawamura, Katsunari Tafuku, Kazutaka Nakao
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Patent number: 6851293Abstract: A device re-shapes formed wire after processes such as annealing where wire is wound on bobbins. The device includes a reservoir for containing lubricant having a first open end and a second open end. The first end of the reservoir is closed by a guide mechanism for guiding the wire into the reservoir. The second end of the reservoir is closed by a wire shaping for shaping the wire when the wire is pulled therethrough. The wire shaping mechanism reduces the cross-sectional area of the wire by no more than 24%.Type: GrantFiled: May 27, 2003Date of Patent: February 8, 2005Assignee: Alcan International LimitedInventors: Rosaire Begin, Alain Champoux
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Patent number: 6785958Abstract: A jig for loosening electric wires of a wire harness passed through a grommet is disclosed. The jig includes a fixing-side clamping portion for clamping the one end of a wire harness, a guide rail extending in a longitudinal direction of the wire harness, a bearing slidably engaged with the guide rail; a lock portion for locking said bearing to the guide rail, a circular rotating member, supported by said bearing, for rotating the wire harness in a circumferential direction of the wire harness; and a movable-side clamping portion, integrally attached to the rotating member, for clamping the other end of the wire harness. The rotating member may have a spiral cam groove, and the bearing may have an engagement protrusion to be engaged with the cam groove so that when the one clamping portion is inverted, the rotating member can move in its longitudinal direction. The one clamping portion may include a rachet mechanism.Type: GrantFiled: July 20, 2000Date of Patent: September 7, 2004Assignee: Yazaki Corp.Inventors: Takahiro Saito, Norihiro Yoneyama, Kenji Usui, Masaya Uchida
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Publication number: 20040050446Abstract: A twisting apparatus of electric wires includes a first holding unit (1) for holding first ends of a pair of electric wires (W1, W2), a second holding unit (2) for holding second ends of the electric wires (W1, W2), and a twist drive unit (4) for rotating the first holding unit (1) to twist the electric wires (W1, W2). The second holding unit (2) includes a pair of support members (27) that rotate together with the first ends of the electric wires (W1, W2), and a rotary synchronous mechanism (28) that rotates both support members (27) at the same speed and in the same direction by transmitting a rotary force from the one support member (27) to the other support member (27) when the one support member (27) rotates.Type: ApplicationFiled: June 4, 2003Publication date: March 18, 2004Applicant: Sumitomo Wiring Systems, Ltd.Inventor: Masaharu Ichikawa
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Patent number: 6658719Abstract: Equipment for stripping a multi-core cable, includes a transport unit for axial movement of the cable, knives for desheathing and stripping the insulation from the cores, and a separator for untwisting the cores and orienting them parallel for acting upon by the stripping knife in a manner that axial forces are not applied to the insulator of the cores. Greater control over and precision associated with the stripping process is obtained.Type: GrantFiled: February 12, 2002Date of Patent: December 9, 2003Assignee: Komax Holding AGInventors: Karin Thoms, Urs Mehri
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Patent number: 6289944Abstract: A twisting apparatus for treating three conductor pairs at the same time. The leading conductor ends are fed by a first pivotal unit to first automatic devices for treatment and equipping. An extraction carriage then takes over the leading conductor ends and draws the conductors out to the desired length. A take-over module takes over the leading conductor ends and brings these to a twisting head. The trailing conductor ends are taken over by a second pivotal unit and fed to second automatic devices for treatment and equipping. A transfer module takes over the finished treated trailing conductor ends and transfers these to a retaining module. The conductor pair situated between the retaining module and the twisting head is twisted with regulated tension force and then passes into a deposit. At the same time, the leading conductor ends of one conductor pair are treated and equipped, one stretched conductor pair is treated, equipped and transferred and one conductor pair is twisted together.Type: GrantFiled: February 22, 2000Date of Patent: September 18, 2001Assignee: Komax Holding AGInventor: Franz Frommenwiler
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Patent number: 6286563Abstract: An automatic automotive cable braiding or pairing machine that does not require special foundation or anchoring for its mounting where in the design of its arrangements consisting of: clamp operated by a pneumatic or hydraulic actuator; a pneumatic-type pressing device or fastener that permits the torsion of cables in cut segments with constant pitches and operates with different gauges; and a tailstock element with terminal holders system that operates with an actuator; and sensor, protection and control electronic elements; and a torsion method.Type: GrantFiled: December 13, 1999Date of Patent: September 11, 2001Assignee: Servicios Condumex S.A. de C.V.Inventors: Oscar Suarez Camacho, Florencio Orozco Mosqueda, Alfonso Gomez Espinoza
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Patent number: 6270598Abstract: A mold is disposed just behind twist ports for forming twisted pair portions of a flat cable. When a plurality of insulated conductors in their portion corresponding to a parallel portion, before fusion, of a flat cable are passed through the twist ports, the rotation of the twist ports is stopped to permit the plurality of insulated conductors to be parallel aligned with an identical pitch. The mold comprises a combination of two molds each having a plurality of grooves for accommodating therein the plurality of insulated conductors delivered from the twist ports. Upon accommodation of the plurality of insulated conductors within the grooves of the mold, fusion between adjacent insulated conductors in their insulative layers is carried out in the mold to form a parallel fused portion.Type: GrantFiled: July 27, 1999Date of Patent: August 7, 2001Assignee: Hitachi Cable, Ltd.Inventors: Tsukasa Kasahara, Osamu Mochizuki, Masaaki Aoyagi, Satoshi Mizushima
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Publication number: 20010004907Abstract: A method and a device for facilitating the sliding, along a track, of an element having a predominant axial dimension subjected to an intense force pressing it against the track, particularly for facilitating the sliding of a wire subjected to stranding in stranding machines. The method consists in interposing between the element and the track a pressurized fluid which contrasts the force that presses the element against the track. In this way, the sliding friction of the element on the track is reduced and it is possible to reduce the force to be applied to the element in order to achieve its advancement along the track.Type: ApplicationFiled: December 13, 2000Publication date: June 28, 2001Inventor: Angelo Dalerba
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Patent number: 6228443Abstract: A miniature model tree is provided that is random in appearance and durable in design. In embodiments disclosed herein, the miniature model tree comprises a plurality of twisted wires, spiraled together to simulate a trunk; a plurality of fibrous strands simulating branches wound within the twisted wire; a layer of paint over the branches; and fine particles layered over the layer of paint and attached to the branches by the layer of paint to simulate foliage. A hardening layer may be provided over the foliage.Type: GrantFiled: November 16, 1999Date of Patent: May 8, 2001Assignee: Grand Central GemsInventors: Andrew A. Ditto, Chris M. King, Joseph P. Buhecker, Kevin R. Minix
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Patent number: 6167919Abstract: The present invention refers to a method of twisting at least two individual conductors comprising the following steps: fixing the first conductor ends of individual conductors, which have been cut off to a suitable length, in respective separate untwisting fixation means which are rotatable essentially parallel to a twisting axis; fixing the second conductor ends of said individual conductors in respective separate twisting fixation means which are arranged such that they are adapted to be rotated in common about said twisting axis; arranging a twisting slide between the essentially tensioned conductors; and rotating the twisting fixation means in common about the twisting axis and rotating the untwisting fixation means about the conductor axis of the respective conductors in the same direction. This method aims at achieving a reduced production expenditure for twisted conductors on the basis of more flexible production conditions.Type: GrantFiled: October 26, 1999Date of Patent: January 2, 2001Assignees: Gluth Systemtechnik GmbH, Lisa Draxlmaier GmbHInventors: Klaus F{umlaut over (u)}chsl, Fritz Dr{umlaut over (a)}xlmaier
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Patent number: 6158113Abstract: A jig for loosening electric wires of a wire harness passed through a grommet is disclosed. The jig includes a fixing-side clamping portion for clamping the one end of a wire harness, a guide rail extending in a longitudinal direction of the wire harness, a bearing slidably engaged with the guide rail; a lock portion for locking said bearing to the guide rail, a circular rotating member, supported by said bearing, for rotating the wire harness in a circumferential direction of the wire harness; and a movable-side clamping portion, integrally attached to the rotating member, for clamping the other end of the wire harness. The rotating member may have a spiral cam groove, and the bearing may have an engagement protrusion to be engaged with the cam groove so that when the one clamping portion is inverted, the rotating member can move in its longitudinal direction. The one clamping portion may include a rachet mechanism.Type: GrantFiled: September 10, 1998Date of Patent: December 12, 2000Assignee: Yazaki CorporationInventors: Takahiro Saito, Norihiro Yoneyama, Kenji Usui, Masaya Uchida
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Patent number: 6041833Abstract: A wire clamping and twisting device includes a base member with a radial projection,; an inner member rotatably held in the base member and having a hexagonal shaft engageable by a cordless electric screwdriver to rotate the shaft in the base member, an inner recess for receiving the distal ends of the wires, a plate insert having a V-shaped recess extending into the inner recess, with walls of the plate insert engaging distal ends of the wires to cause the distal ends to rotate with the inner member and thereby twist the wires, and an outer surface with an annular groove which receives the radial projection of the base member for preventing axial movement of the inner member in the base member, while permitting rotation thereof; and a grasping device mounted to the base member for non-rotatably grasping portions of the wires located proximally from the distal ends of the wires during rotation of the inner member, the grasping device having opposed gripping members for gripping the proximally located portionsType: GrantFiled: May 26, 1998Date of Patent: March 28, 2000Inventor: Marijan Suric
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Patent number: 6009646Abstract: An apparatus for tying a bale of material with a baling wire comprises an elongated body having a longitudinal axis and opposite ends, and a leg extending from each end of the body and including a forked portion. A retention clip is rotationally mounted about an axis proximate each of the forked portions, and the axis of rotation of each clip is oriented generally parallel to the longitudinal axis of the body. The clips are operable to rotate automatically in a first direction on said axes when wires, oriented along the longitudinal axis of the body, are directed against the clips, and are further operable to automatically rotate in a second direction to capture wires directed thereagainst for maintaining wires along the body between the clips.Type: GrantFiled: June 5, 1998Date of Patent: January 4, 2000Assignee: L&P Property Management CompanyInventor: Gerald L. Johnson
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Patent number: 5946897Abstract: A production unit for twisted cable is disclosed that facilitates the supply and removal of fixed length cables, thereby contributing to improved workability and automation compatibility. A plurality of pairs of relatively rotatable opposed cable clamps are provided with one cable clamp of each pair provided at one end of the fixed length cables and the other of each pair of cable clamps provided at the other end. Each pair of clamps is intermittently moved forward in a direction transverse to the opposed direction in which the cables extend. Each pair of cable clamps sequentially circulate, and the supply and removal operation of fixed length cables to and from the pairs of clamps are conducted respectively at predetermined positions by stations provided in the circulating route, by which it becomes possible to carry out the supply and removal of fixed length cables to continuously repeat the twisting operation.Type: GrantFiled: June 4, 1998Date of Patent: September 7, 1999Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Masaharu Ichikawa, Hideki Nakamura
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Patent number: 5931203Abstract: The invention relates to a novel process for producing twisted prepared lines, in which process at least two individual lines after their preparation are then twisted in a twisting device with clamping between two holders between which a twisting segment is formed and of which one can be moved along this twisting segment, by turning at least one holder, and to a novel device for executing the process.Type: GrantFiled: October 31, 1997Date of Patent: August 3, 1999Assignee: Baumann GmbHInventors: Gerhard Kredler, Josef Konrad
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Patent number: 5640657Abstract: A device for forming two twisted loops on the ends of a wire electrode to be used in scavengeless development. The wire is supported at both ends in a wire twisting apparatus and a specified tension is applied to the free ends of the wire. A crank is turned so that the both ends of the wire rotate at the same time. This causes the free ends of the wire to twist upon the suspended wire portion, two loops being formed at the ends of the wire. The twisted sections are stable and strong enough to maintain the loops when the wire is mounted in the development system.Type: GrantFiled: December 6, 1995Date of Patent: June 17, 1997Assignee: Xerox CorporationInventors: Steven C. Hart, Gerald M. Kryk
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Patent number: 5533327Abstract: A preforming head for making ropes and cable armor including an axle with a front preforming disk fixedly mounted thereon. A middle preforming disk and a rear preforming disk are displaceably mounted on the axle. The middle disk has a diameter larger than the front disk and smaller than the rear disk. A drive moves the disks so that the distance between front disk and middle disk remains approximately equal to the distance between middle disk and rear disk.Type: GrantFiled: April 28, 1994Date of Patent: July 9, 1996Assignee: Witels Apparate-Maschinen Albert GmbH & Co KGInventor: Eckehard Albert
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Patent number: 5477718Abstract: A rotary apparatus for removing a habitual tendency of an electric wire according to the present invention, has an electric wire twist removing mechanism for removing a twist of an electric wire while the electric wire is travelling. The electric wire is held by and between two-row roller groups such that the electric wire can travel. A rotary member which rotatably supports rollers of the roller groups is attached to a stationary member in a manner rotatable around an axis along the travelling direction of the electric wire. A drive mechanism rotates the rotary member at a predetermined cycle in the direction opposite to a direction in which the electric wire is twisted, thus untwisting the electric wire. Preferably, the electric wire twist removing mechanism also serves as a mechanism for correcting a bend of the electric wire.Type: GrantFiled: May 9, 1994Date of Patent: December 26, 1995Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Yoshiei Sakamoto, Tatuya Sawaguchi
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Patent number: 5379809Abstract: A wire twisting device and method to join the bare end portions of a plurality of insulated electrical wires together in a radially and longitudinally uniform spiral configuration to receive a hollow wire connector or nut on the outer end portions thereon, the wire twisting device comprises an insulated handle and wire twisting member wherein the wire twisting member includes a centrally disposed cavity formed therein having a plurality of protrusions extending inwardly toward the center thereof to cooperatively form a corresponding plurality of wire receiving channels between adjacent protrusions such that the bare end portions to be joined are placed in a corresponding channel whereby as the wire twisting device is rotated relative to the plurality of electrical wires the wire twisting device moves longitudinally relative to the insulated electrical wires to twist the bare end portions together to form the uniform spiral configuration prior to application of the hollow wire connector or nut thereon.Type: GrantFiled: October 13, 1993Date of Patent: January 10, 1995Inventor: Robert M. Waulk
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Patent number: 5375404Abstract: A stranded product is formed from a central wire and a plurality of wires helically wound around the central wire, wherein each of the wires helically wound around the central wire has a small longitudinal groove which increases the area of contact between each of the outer wires and the core wire, thus significantly reducing the internal contact stresses within the strand to extend the fatigue life of the strand without significantly reducing the bending flexibility of the strand. A plurality of stranded products in accordance with the invention can be employed in a conventional manner to form ropes, cables and the like, having an extended service life.Type: GrantFiled: March 10, 1993Date of Patent: December 27, 1994Assignee: The University of AkronInventor: Ted A. Conway
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Patent number: 5373615Abstract: A caul screen is made with metal cable having a low twist level of between 1 and 5 turns per inch and where the cable is made with filaments that have been coated with brass; the cable is woven into a mesh to form the screen.Type: GrantFiled: September 1, 1992Date of Patent: December 20, 1994Assignee: National FiltrationInventors: Ian Webb, Ronald A. Findlay
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Patent number: 5170654Abstract: Method, applicable to two-dimensional wire bending machines for extension of their operation in bending to form three-dimensional wire frames, which is characterised by the application of a torsional moment along the axis of the wire and before the bending region, causing a permanent plastic deformation of the wire, by twisting it beyond the elastic region, with eventual result any bending action already occured in the regular plane of the two-dimensional bending macnine to be positioned a new plane, which form an angle with the regular plane equal to the remaining due to plastic deformation angle of twist.Type: GrantFiled: April 4, 1991Date of Patent: December 15, 1992Inventor: Panagiotis A. Anagnostopoulos
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Patent number: 5052450Abstract: The present invention offers a machine which is capable of creating contrahelic wound harness sections existing with continuously disposed straight lay wire sections. The invention avoids the necessity of interposing electrical connectors between the contrahelic and straight lay sections thereby vastly improving the reliability and cost considerations of a complex multiwire harness. Pulleys are driven in synchronism by microprocessor-controlled stepper motors. The pulley winding the contrahelic layer may be moved transversely by a rack and pinion gear arrangement, the pinion gear being stepper motor driven by the microprocessor so that a correct transversal rate is achieved during contrahelic winding.Type: GrantFiled: April 12, 1990Date of Patent: October 1, 1991Assignee: Grumman Aerospace CorporationInventor: Stuart J. Williams
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Patent number: 5020576Abstract: The present invention offers a machine which is capable of creating contrahelic wound harness sections existing with continuously disposed straight lay wire sections. The invention avoids the necessity of interposing electrical connectors between the contrahelic and straight lay sections thereby vastly improving the reliability and cost considerations of a complex multiwire harness.Type: GrantFiled: April 12, 1990Date of Patent: June 4, 1991Assignee: Grumman Aerospace CorporationInventor: Stuart J. Williams
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Patent number: 5016682Abstract: An electric wire twisting machine includes a transmission mechanism comprising a motor to carry a driving rod set and a driving fear set to operate, an electric wire top clamping mechanism driven by the driving gear set to clamp and carry the copper threads of the wire top of an electric wire inserted therein, and an electric wire twisting mechanism driven by the driving rod set to twist and carry the root portion of such an electric which has its wire top clamped by the electric wire top clamping mechanism so as to let the copper threads of the wire top of such an electric wire be twisted into a cord.Type: GrantFiled: January 22, 1990Date of Patent: May 21, 1991Inventor: Chuang P. Young
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Patent number: 4970371Abstract: An apparatus and method for on-line pretwisting of welding wire. A spindle member is rotatably mounted within a housing, which includes an inlet for receiving two or more strands of welding wire. A wire advancing mechanism is provided within a cavity formed in the spindle member immediately downstream of the housing inlet, for advancing the strands of wire through the spindle member and the housing. The spindle member is rotatable about a twisting axis relative to the housing. Upon simultaneous operation of the advancing mechanism and rotation of the spindle member, twisting is imparted to the wire strands. The advancing mechanism feeds the twisted wire strands through a guide tube, which has its outlet positioned immediately upstream of a welding head. The twisted welding wire is fed through the guide tube outlet into the welding head for use in a welding operation.Type: GrantFiled: January 10, 1990Date of Patent: November 13, 1990Assignee: A. O. Smith CorporationInventor: Daniel C. Montgomery, Sr.
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Patent number: 4964800Abstract: A method for precisely fitting dental wire to brackets on a patient's teeth includes the initial step of measuring the width of the teeth to which the dental wire will be affixed. The width of the teeth are plotted along a straight baseline on a base block, with the desired spacing between the teeth. The dentist must then determine the amount and direction of biasing force necessary to reposition the misaligned teeth to an aligned position. The dental wire is then bent into the appropriate shape using the plotted measurements on the base block to determine the appropriate spacing between the bends and loops in the dental wire. Finally, the dental wire is attached to the brackets on the patient's teeth. The apparatus utilized by the dentist in performing the method of the invention includes a base block as described above, with a straight baseline and a lower edge parallel to the baseline.Type: GrantFiled: March 24, 1989Date of Patent: October 23, 1990Inventor: Jackson J. Good
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Patent number: 4936358Abstract: The invention relates to a method for securing the end of wire coiled onto a spool, whereby the last winding of the wire coiled onto the spool is taken up together with at least one preceding winding and connected thereto, after which the wire is cut between the connection thus made and the wire feed apparatus, whereby the length of the windings to be connected to each other is increased under tension and the additional length of wire is concentrated where the connection is to be formed, that the additional length of the windings to be connected to each other is held under tension, and that during the connection operation the additional, free length of wire of the windings to be connected to each other is incorporated in the connection thus formed.Type: GrantFiled: June 13, 1988Date of Patent: June 26, 1990Assignee: N.V. Bekaert S.A.Inventors: John Verhaeghe, Jozef Wyckhuys, Etienne Lambert
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Patent number: 4924918Abstract: A machine and method for manufacturing "fuzz button" type button connectors. The machine has a mechanism for supplying wire and a mechanism for knurling the same wire. The machine also includes a mechanism for wrapping the wire around two temporarily fixed points and a mechanism for spinning one of the two fixed points. After wrapping and spinning, the wire is cut at both end portions and ejected.Type: GrantFiled: March 17, 1989Date of Patent: May 15, 1990Inventors: Ming-fang Lin, C. H. Cheng
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Patent number: 4865086Abstract: The invention provides a method of twisting the conductors of one or more electrical wires, the method comprising:(a) assembling the conductors into a bundle;(b) inserting the bundle of conductors into a wire twister which comprises an elongate body having an axially extending cavity formed therein, the cavity being open at one end and having a substantially closed cross-section with four sides, at least one of the sides of the cavity being inclined to the axis of the body so that the cavity is tapered inwardly away from the open end, the ratio of the length of the longest side to the length of the shortest side at the axial position at which the conductors, when twisted to form a substantially circular array, contact two opposite sides of the cavity being from about 1.0 to about 3.0; and(c) imparting rotation to the wire twister relative to the conductors, while maintaining the conductors in contact with at least two of the sides of the cavity.Type: GrantFiled: August 11, 1988Date of Patent: September 12, 1989Assignee: Raychem CorporationInventors: William M. Robinson, Michele B. Small
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Patent number: 4802512Abstract: The present invention relates to an automatic covered wire cutting and decorticating apparatus and process for moving forward the covered wire by a specified length to a side unopposed to a sending mechanism of a cutting mechanism provided at a position opposite the sending mechanism. A pair of rollers of the sending mechanism moves the covered wire and a cover of the covered wire is cut by the cutting mechanism. The apparatus further processes the wire by pulling the covered wire to the sending mechanism and decorticating the cover of covered wire by rotating both the rollers of the sending mechanism and a process for twisting an exposed core wire by relatively moving both the rollers of the sending mechanism in the direction of axial center in synchronization with the process for decorticating the cover of the covered wire.Type: GrantFiled: February 24, 1987Date of Patent: February 7, 1989Assignee: Kabushiki, Kaisha, Kodera, Denshi, SeisakushoInventor: Hiroji Kodera
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Patent number: 4782578Abstract: A pneumatic wire stripping machine has wire clamping jaws and insulation cutting jaws. The respective jaws are operated by respective pneumatic cylinders. Additionally, there is a third pneumatic cylinder for moving the cutting jaws lengthwise relative to the clamping jaws so as to strip insulation from one end of the wire. A sequence control valve is provided for ensuring that the stripping cylinder only operates after the wire has been properly clamped and the insulation cut. Further, there may be provided, a twisting jaw arrangement for twisting the wire as it is stripped.Type: GrantFiled: May 15, 1987Date of Patent: November 8, 1988Inventor: Txay Jaw Wu
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Patent number: 4776159Abstract: An automatic spindle with a propeller guide and a hook provided in front of an extension of the propeller guide, the hook being attached to a filament for preparatory spinning, the back-pull given by virtue of such an arrangement serving to bring the propeller guide upwards so that a positioning rotation may be produced upon the frontal tip of the propeller guide as a plurality of engaging teeth provided over the perimeter of the sleeve that is acting upon and as fitted to the perimeter of the propeller guide are engaged respectively in the helical threads over the propeller guide. Thus the string or rope fastened to the frontal tip of the propeller guide can be twisted. A feeder is clamped to the tail end of a hand cone to accommodate the mounting of wires meant for spinning processing, and the front end of the hand cone is fitted with a clipper, thereby serving to feed the wire straight by means of the feeder in the exercise of fastening of objects, and to cut the wires.Type: GrantFiled: July 1, 1986Date of Patent: October 11, 1988Assignee: Hellhead Enterprise Co., Ltd.Inventor: Wen-Hai Lu
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Patent number: 4680996Abstract: A screwdriver having its blade end rotated slightly about its longitudinal axis and also provided with arcuate cutouts at the rotation, so that the combination of these two structural features provides an aligning edge that remains in the observation of the user and facilitates placement of the screw-turning edge in the slot of a screw head.Type: GrantFiled: April 18, 1986Date of Patent: July 21, 1987Inventor: Peter N. Gold
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Patent number: 4656860Abstract: In dental treatment for fitting a wire piece onto the teeth and/or jaw, a patient is subjected to repeated bending and in some cases twisting of the wire and some arrangement for completing the treatment, with whose help the bending and twisting process takes place automatically by machinery. Accordingly, next the data about the shape of the teeth and/or jaw is ascertained and put into an electronic computer, where this data is converted into control data. The wire piece will then be put into a bending machine with separately controlled stepping drives for advancing the wire, twisting and bending, whose drive through the command of the computer will automatically be controlled. The bending machine comprises essentially an advancing means, a torsion work piece of two grippers relatively rotatable with each other and a bending work piece with a moving bending edge substantially perpendicular to the wire axis.Type: GrantFiled: March 28, 1985Date of Patent: April 14, 1987Inventors: Wolfgang Orthuber, Helge Fischer-Brandies
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Patent number: 4641689Abstract: Equipment for making a wire strand is characterised by the following features; an elongate track (12); a clamp (14) at one, leading end of the track rotatable about an axis parallel to the track; an anchor frame (15) at the other trailing end of the track having rotatable tensioning spaced anchorages (16) for wires (17) extending parallel to the track; a trolley (18) movable along the track (12) and carrying adjacent the leading end a rotatable closing die (19) having an aperture (20) of cross-section corresponding to the cross-section of the strand (11), and adjacent the trailing end a grouper plate (21) having spaced wire guide apertures (22) corresponding to the anchorages (16) on the anchor frame (15), there also being on the trolley (18) intermediate the closing die (19) and the grouper plate (21) a lay plate (23) having wire guide apertures (24) with spacings intermediate the spacing of the guide apertures (22) in the grouper plate ( 21) and the closeness in the closing die (19); a first drive arrangemeType: GrantFiled: August 13, 1984Date of Patent: February 10, 1987Assignee: Bridon plcInventors: Philip Christian, Alan I. Tawse
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Patent number: 4612792Abstract: In order to improve the fatigue resistance of a cable, particularly a rubber adherable cable for reinforcing rubber articles such as vehicle tires, substantially uniformly distributed residual compressive stress is induced in substantially the complete peripheral zone of the wires making up the cable. The stress may be induced by submitting lengths of the cable to a number of elementary bending-unbending operations in considerably different planes and simultaneously tensioning the cable.Type: GrantFiled: September 26, 1984Date of Patent: September 23, 1986Assignee: N. V. Bekaert S. A.Inventors: Marc De Bondt, Urbain D'Haene, Paul Dambre
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Patent number: 4609576Abstract: Artificial Christmas trees have been formed by sandwiching one or more thin strips of plastics sheeting, whose side edges have been severed by a very large number of closely spaced transverse cuts so as to give transverse elements simulating the pine needles, between a pair of wires approximately at the longitudinal center line of the strip. The resulting structure is cut to a length of two twigs and joined at its center to a main branch formed, for example, by twisting a pair of larger wires. A full branch is formed by providing a number of such twigs spaced along the length of the branch. In a branch of an artificial Christmas tree according to the invention a length to be formed into a pair of twigs is formed by twisting the composite structure at the center of its length relative the two ends forming twists of opposite directions on either side of the center.Type: GrantFiled: November 14, 1984Date of Patent: September 2, 1986Assignee: United Chinese Plastics Products Co. Ltd.Inventor: Hon Liu
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Patent number: 4604882Abstract: A rotary head for use in an apparatus for forming a stranded wire, the apparatus including an inner rotating body rotating about a predetermined axis, an outer rotating body surrounding the inner rotating body to define an annular space between the two bodies, which rotate about the same axis, and a guide member provided at a first end portion of the annular space to guide wire stock. The rotary head is located at a second end portion of the annular space, has cutters and rotates in a predetermined direction, and also has plural pairs of projections extending on the outer rotating body side of the annular space and the inner rotating body side thereof, with a predetermined gap therebetween, the cutters being provided in the vicinity of the gap.Type: GrantFiled: April 25, 1984Date of Patent: August 12, 1986Assignee: Yazaki CorporationInventors: Tamotsu Nishijima, Toshihiro Fujino