By Multi-convolutional Tool Patents (Class 72/141)
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Patent number: 10898965Abstract: Systems and methods are disclosed that provides a helical wire for use in welding applications. A torch can be adapted to form the helical wire from a straight wire and to provide the helical wire as a consumable electrode in a welding or cladding application. The helical wire can be, for example, solid, tubular, or seamless tubular. The torch concurrently forms the helical wire and provides welding current for the welding or cladding application.Type: GrantFiled: September 17, 2016Date of Patent: January 26, 2021Assignee: Illinois Tool Works Inc.Inventor: Christopher Hsu
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Patent number: 8910501Abstract: The winding mandrel includes a pair of generally rounded-cube shaped or orthogonally flat-sided spherical main bodies connected together and having a plurality of cylindrical posts for forming vasoocclusive coils. The main bodies are connected together by a transition post, and the posts of the two main bodies are typically offset. A front end post and back end post are disposed on the front and rear ends of the mandrel. A short winding post member may be added between the connections of the two main bodies to provide additional winding posts.Type: GrantFiled: October 7, 2013Date of Patent: December 16, 2014Assignee: DePuy Synthes Products, LLCInventors: Marcelino Gorospe, Edsel San Diego, Thu Anh Ho
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Patent number: 7971462Abstract: A system and method for producing a cable hanger formed by alternately and continuously forming the Z-winding spiral and the S-winding spiral using the hanger wire. The system and method involve the use of at least five spiral forming dice accommodated in a cylindrical space of the housing such that the spiral forming dice are adjacent to each other and can rotate independently from one another.Type: GrantFiled: April 21, 2008Date of Patent: July 5, 2011Assignee: Kyoei High Opt Co., Ltd.Inventors: Minoru Nakamura, Hiroshi Iwase
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Patent number: 5868996Abstract: The objects are a reliable and economical method of and device for manufacturing helical springs that are curved when unstressed from sections of wire or rod heated to coiling temperature. The spring is coiled straight and then curved it to its final shape. The device consists of a hot-coiling production line comprising a kiln (1), a series of rollers (2), a coiling bench (4), and a quenching tub (6). A tool (5) for curving helical springs (10 or 14) is integrated into the production line between the coiling bench and the quenching tub.Type: GrantFiled: July 28, 1993Date of Patent: February 9, 1999Assignee: Fried. Krupp AG Hoesch-KruppInventors: Hans Vondracek, Heinz Krober
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Patent number: 5855131Abstract: Process and device for influencing the profile of a rolled strip in a roll stand by affecting the camber of the rolls, i.e., the surface geometry of the rolls in the longitudinal direction of the rolls. The camber of the rolls is affected by influencing the temperature profile of the rolls or their surface in the longitudinal direction of the rolls. In one embodiment, the temperature profile of the surfaces of the rolls is controlled by cooling the surfaces of the rolls.Type: GrantFiled: May 8, 1997Date of Patent: January 5, 1999Assignee: Siemens AktiengesellschaftInventors: Friedemann Schmid, Guenter Soergel, Otto Gramckow
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Patent number: 5671625Abstract: The device includes two rolls (10, 11) held by bearings (13, 14) on a frame (16) and, for each roll, devices (22) for measuring the position of the generatrix diametrically opposite the neck between the rolls, at three or more points lying respectively in a mid-plane (P.sub.3) perpendicular to the axes and in secondary planes such as (P1, P5) parallel to the mid-plane, and means (23) for measuring, in the said mid-plane, the position of a generatrix lying at 90.degree. to the neck. The method according to the invention uses these measurements to determine continuously the gap between the rolls, taking into account the in-service deformations of the rolls.Type: GrantFiled: October 27, 1995Date of Patent: September 30, 1997Assignees: Usinor-Sacilor (Sciete Anonyme), Thyssen Stahl AktiengesellschaftInventors: Jacques Barbe, Fran.cedilla.ois Mazodier, Luc Vendeville, Pierre Delassus, Elias Sarkis, Yves Grandgenevre, Jean-Marie Pelletier
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Patent number: 5609054Abstract: A rolling mill for flat products characterized by a roll assembly including a pair of work-rolls confronted reciprocally, and support-rolls divided by not less than three partitions in a roll axiswise direction which are provided, independently, with load detector equipment; crown and flatness of the products can be estimated precisely and regulated without delay using the rolling mill.Type: GrantFiled: May 7, 1993Date of Patent: March 11, 1997Assignee: Nippon Steel CorporationInventors: Shigeru Ogawa, Toshiyuki Shiraishi
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Patent number: 4426871Abstract: Apparatus for producing a helical wire coil which can be subdivided into discrete spiral binders for use in steno pads or other types of stationery products has a driven mandrel with a cylindrical intermediate section flanked by two frustoconical sections whose larger-diameter ends are adjacent to the respective axial ends of the cylindrical section. The wire to be coiled is fed into the inlet of a helical path which is defined by guide pins distributed around the sections of the mandrel. The inlet is adjacent to one of the frustoconical sections and the wire which is fed into the inlet advances along the helical path to be coiled during travel around the one frustoconical section, thereupon around the cylindrical section and finally around the other frustoconical section. The exposed surface of the cylindrical section may be grooved.Type: GrantFiled: November 16, 1981Date of Patent: January 24, 1984Assignee: Womako Maschinenkonstruktionen GmbHInventor: Paul Fabrig
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Patent number: 4379397Abstract: Apparatus for making a spindle-type body with at least one eccentric zone from a semi-product of circular cross-section by gradually radially displacing the eccentric zone of the semi-product to bring its eccentricity from zero to the desired value. The apparatus includes a multi-part die with shaping jaws providing a semi-product shaping passage therein, the semi-product being thrust axially into the die while the semi-product and the die rotate relatively to each other.Type: GrantFiled: September 4, 1981Date of Patent: April 12, 1983Assignee: Sigma concernInventor: Oldrich Langr
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Patent number: 4003234Abstract: Apparatus for bending a thin flexible and narrow strip having a flat longitudinally extending base portion and a central longitudinally extending rib, comprising a cylinder mounted on a supporting base and having a helical recess extending from the bottom to the top thereof. The recess extends inwardly into the cylinder a distance slightly less than one-half of the width of the base portion of the strip. A rotatable arm is mounted on a shaft which extends upwardly and concentrically from the top of the cylinder. The arm has mounted thereon a slide member adapted to be moved towards and away from the cylinder. A rotatable wheel is rotatably mounted in the slide member, the wheel having an annular recess therein extending inwardly into the wheel a distance slightly less than one-half of the width of the base portion of the strip, the recess of the wheel being opposite to or in alignment with the recess on the cylinder.Type: GrantFiled: May 8, 1975Date of Patent: January 18, 1977Assignee: Carolea WheelerInventor: Clyde W. Thompson