Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7459653 | Device for compacting and/or welding electric conductors A device for compacting and/or welding electric conductors (10), in particular for producing via nodes or end nodes of stranded conductors. The device includes a first electrode, one section of which constitutes a first delimitation surface of a compacting ch... | 12/02/2008 |
| 7355142 | Resistance welding electrode, welded copper flex lead, and method for making same A method and an electrode for welding a stranded metal workpiece to a substrate workpiece using electrical-resistance welding is provided and a weldment article of manufacture made thereby. More particularly, the method and electrode are best suited for welding a st... | 04/08/2008 |
| 7282659 | Panel assembly apparatus A panel, such as a fence panel, is assembled by a projection welding process from a plurality of upright members and a plurality of rails. The rails and upright members are first assembled into a flat panel framework, which is introduced into a welding area having m... | 10/16/2007 |
| 7281319 | Apparatus for manufacturing wire wound filter screens An apparatus for manufacturing a wire wound filter screen from wrapping wrap wire over a set of rib wires has a frame, a spindle for supporting the rib wires in a longitudinal orientation, a wire guide for delivering wrap wire around the rib wires as the spindle rot... | 10/16/2007 |
| 7275317 | Method of production for a wiring harness job order An object of the present invention is to provide a wiring harness job-order production method and a wiring harness job-order production system, wherein a space for producing a wiring harness is reduced and the production efficiency of the wiring harness is improved.... | 10/02/2007 |
| 7247809 | Welding machine for the production of wire grid sheet A welding machine, operating by the electric resistance welding method, for producing wire grid mat of longitudinal and transverse wires (L, Q) crossing one another and welded together at the crossing points, having a plurality of welding units (1, 1′), loc... | 07/24/2007 |
| 7124785 | Former associated with an apparatus for making cages A former (10) for a reinforced concrete cage making machine, adapted to hold a plurality of longitudinally extending rods is disclosed, the former (10) including a frame comprising an inner frame (21), an outer frame (20) and transverse f... | 10/24/2006 |
| 7041932 | Apparatus and method for supplying a continuous source of wire An apparatus and method for supplying a continuous source of wire includes a base supporting at least first and second sources of wire, a wire joining apparatus adjacent the base configured to weld a first wire from the first source with a second wire from the secon... | 05/09/2006 |
| 7010853 | Electric-component mounting system An electric-component mounting system for mounting a plurality of electric components onto a circuit board. The system includes a plurality of electric-component mounting units which are arranged in a predetermined direction with a spacing distance between each adja... | 03/14/2006 |
| 7012213 | Reel wire type of welding device for spot welding A reel wire type of welding device for spot welding includes a first guiding portion rotatably mounted in a front end of the welding device such that the wire is supported and guided in a working area in which the wire contacts a target object. At least one second g... | 03/14/2006 |
| 6936166 | Endpiece for a chromatography column A liquid transfer system (100) comprising a net (170) and a net support (160), wherein, the net (170) is integrally joined with the net support (160). The net (170) and the net support (160) are preferably joined by w... | 08/30/2005 |
| 6912787 | Method of forming a joist assembly and a chord used in such joist assembly A method of forming a joist assembly including the steps of forming a top chord, forming a bottom chord, bending a tubular member into a serpentine configuration, positioning an upper bent portion of the tubular member into the top chord, positioning a lower bent po... | 07/05/2005 |
| 6906277 | Reinforcement butt stud welding method and device therefor and repairing/expanding method for ferroconcrete structure A reinforcement butt stud welding method and a device therefore, capable of butt-welding a stud reinforcing bar coaxially to the end portion of a horizontally-laid existing reinforcement in a small work space; and a repairing/expanding method for a ferroconcrete str... | 06/14/2005 |
| 6844532 | MoSi2 arc-shaped heater, and method and device for manufacturing the heater A MoSi2 arc-shaped heater formed in a continuous waveform, characterized in that U-shaped heater members having parallel parts are connected alternately to each other at the end parts, and the parallel faces of the U-shaped heater members have an angle re... | 01/18/2005 |
| 6710278 | Device for the welding of a wire mesh grid Apparatus for welding a wire mesh of crossing longitudinal and transverse wires, with a rotatable upper and lower electrode configured as a disk-like polygon, at least the upper electrode (2) being movable upwardly and downwardly and the upper and lower elect... | 03/23/2004 |
| 6644535 | Truss core sandwich panels and methods for making same A structural material includes a plurality of discrete, interwoven wires disposed between and fastened to two solid face sheets. Each of the plurality of wires further includes at least two points of contact with each of the two face sheets. Methods for f... | 11/11/2003 |
| 6639170 | Wire changing in an armature winder Methods and apparatus for replacing an old wire threaded through a flyer winder with a new wire are provided. A first end of the old wire is connected to a first end of the new wire. The wires may be connected by twining, clamping, welding or the like. A ... | 10/28/2003 |
| 6460235 | Device to produce reinforcement metal cages Device (10) to produce reinforcement metal cages comprising a plurality of longitudinal round pieces (13) associated with a plurality of stirrups (12) arranged at intervals along them, said device (10) comprising at least a supporting plane (20) on which ... | 10/08/2002 |
| 6241142 | Welding device for net member A welding device includes a number of welding members disposed on a bases and a frame slidably supported in the base for supporting wires to be welded together. A moving device may move the frame between the welding members for allowing the wires to be we... | 06/05/2001 |
| 6133540 | Apparatus and method for producing punch pin with spherical head An apparatus and method is provided for forming a punch retaining ball at the end of a wire to form a headed punch pin for making vias in greensheets comprising advancing the wire through a die, contacting the end of the wire with a movable electrode whic... | 10/17/2000 |
| 6127652 | Wire changing in an armature winder Methods and apparatus for replacing an old wire threaded through a flyer winder with a new wire are provided. A first end of the old wire is connected to a first end of the new wire. The wires may be connected by twining, clamping, welding or the like. A ... | 10/03/2000 |
| 5973287 | Resistance welding method and apparatus used in the method A resistance welding apparatus in which welding portions of materials to be welded are resistance-welded with each other by use of resistance heating caused by conduction of a welding current while the welding portions are pressed between a pair of electr... | 10/26/1999 |
| 5818008 | Apparatus and method for resistance welding tubular parts An apparatus and method for resistance welding tubular parts is disclosed. The apparatus includes a weld gun having displaceable electrodes with contact faces engaging the parts. The contact faces are designed to distribute the forces applied to the parts... | 10/06/1998 |
| 5719366 | Method for manufacture of rack and shelving system A novel method and apparatus is disclosed for the production of single plane ladder-type rack strip material in which wire cross bar elements are Tee-welded to the inside surface portions of opposed, parallel side elements formed of similar wire material.... | 02/17/1998 |
| 5688412 | Apparatus for manufacture of rack and shelving system A novel method and apparatus is disclosed for the production of single plane ladder-type rack strip material in which wire cross bar elements are Tee-welded to the inside surface portions of opposed, parallel side elements formed of similar wire material.... | 11/18/1997 |
| 5672283 | Apparatus and method for making welded mesh forms An apparatus and method for making welded mesh forms (10) having a stationary center beam (12) and an adjustable center beam (14). Two adjustable side beams (36 and 38) and one adjustable bottom beam and clamp (20) are provided so that any number of circu... | 09/30/1997 |
| 5665254 | Method of manufacturing a reinforcing bar cage and apparatus for manufacturing the same A method of manufacturing a reinforcing bar cage, which is used in a cast-in-place piling method of constructing a reinforced concrete pile for a structure, and an apparatus for manufacturing the same, which allow simple and easy manufacturing of a reinfo... | 09/09/1997 |
| 5647110 | System for the continuous production of building elements Plant for the continuous production of building elements which consist of two parallel flat grid meshes made from welded longitudinal and transverse wires, of straight web wires holding the grid meshes at a predetermined mutual spacing and of an insulatin... | 07/15/1997 |
| 5645738 | Apparatus and method for resistance welding tubular parts An apparatus and method for resistance welding tubular parts. The apparatus includes a weld gun having electrodes with arcuate contact faces engaging the parts. The electrodes are displaceable relative to each other. The contact faces are designed to dist... | 07/08/1997 |
| 5541380 | Braided cable solidification A flexible current carrying cable is provided comprising a cable and an end portion of the cable being solidified wherein the end portion is compressed into a unitary member having reduced voids and enabling brazing of the end portion to a current carryin... | 07/30/1996 |
| 5446254 | Process and installation for producing reinforcement wire meshes A process and installation for producing reinforcement wire meshes by welding longitudinal and transverse wires (L, Q) together at their crossing points, leaving ends (E) or the transverse wires projecting beyond the longitudinal edge wires using a contin... | 08/29/1995 |
| 5416288 | Multiple spot resistance welding machine for welding wire grids A multiple spot resistance welding machine for the welding of wire grids by direct current comprises several contact electrodes (4.1.1, 4.2.1, 4.1.2, 4.2.2, . . . ) contacting a respectively associated grid point from both sides. The switching arrangement... | 05/16/1995 |
| 5403985 | Machine for manufacturing construction panels The machine for manufacturing a construction panel has a plurality of clamping mechanisms (32) for holding fixed a subassembly including a plate-shaped heat insulating core (12) and upper and lower wire meshes (18,24) with predetermined gaps between them;... | 04/04/1995 |
| 5371335 | Spark plug electrode welding system A method of welding a noble metal tip to a spark plug center electrode comprises the steps of placing a plurality of spark plug center electrodes into a plurality of carriers so that each carrier carries one spark plug center electrode, one by one moving ... | 12/06/1994 |
| 5362935 | Method of butt-welding bar steel and device therefor An end portion of a steel bar such as a reinforcing bar is planed at an angle to form a oblique tip surface having a prescribed angle for an arc welding. The end portion of the steel bar is fitted within a guide member comprising a butting tab that extend... | 11/08/1994 |
| 5308948 | Method for welding together electrically conductive members A method for welding together electrically conductive members, comprises detecting step for detecting a removal of an electrically insulating member between a first electrically conductive member and a second electrically conductive member, and welding st... | 05/03/1994 |
| 5297715 | Machine for making steel grids A machine for making steel grids each consisting of a number of steel strips attached to a number of steel rods at an angle of 90°. The steel strips are formed with temporarily softened spots by means of the machine. The steel rods are pushed into the te... | 03/29/1994 |
| 5286925 | Electrical conductor, process for manufacturing an electrical conductor and electrode for an electrolysis cell Electrical conductor comprising a metallic bar (1) jacketed with a sheath (2) made from a metal different from that of the bar, in which the bar (1) exhibits at least one longitudinal groove (3, 3') containing a bead (4, 4') made from the same metal as th... | 02/15/1994 |
| 5260539 | Method and apparatus for making a printing screen A method and apparatus for making a true butt-welded cylindrical printing screen for a rotary screen printing press, wherein the screen material is rigidized woven metal screen. The method of making the cylindrical screen of the invention includes the ste... | 11/09/1993 |
| 5250778 | Method and apparatus for welding pad material to a spark plug electrode Apparatus and method for welding a platinum wire to a ground electrode of a spark plug to form a contact pad of platinum material that is welded to the ground electrode. The ground electrode is attached to and extends from a metallic spark plug shell. The... | 10/05/1993 |
