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| Number | Title | Issue Date |
| 8143549 | Apparatus for butt-welding tube joints Welding devices and methods of using the same are provided. The welding device includes a rotor assembly. The rotor assembly includes a first semi-collar associated with a second semi-collar to form a collar. The collar is adapted to be disposed about a tube to be w... | 03/27/2012 |
| 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 |
| 7000635 | Double valve The invention relates to a double valve with a valve housing (1), for housing two double-headed actuators (30, 31), whereby the double head actuators have differing head diameters (12, 13) and the flow of a fluid through the both actuators (3... | 02/21/2006 |
| 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 |
| 6373017 | Continuous hot rolling mill with metal block conveying apparatus A continuous hot rolling mill with a metal block conveying apparatus and a metal block joining apparatus which moves with the metal blocks along the metal block conveying apparatus to conform a joining operation. The metal block conveying apparatus uses r... | 04/16/2002 |
| 6252211 | Method of joining metal pieces A method and apparatus for joining metal pieces wherein the rear end of a preceding metal piece and a front end of a metal piece are heated and then pressed together prior to hot finished rolling. The temperature the ends of the metal pieces are heated to... | 06/26/2001 |
| 5674412 | Butt splicer for copper based tapes Apparatus and method for butt-splicing hard-rolled and.backslash.or wide copper and copper alloy tapes employs a rolling electrode and varies the contact angle of the tape ends during soldering.... | 10/07/1997 |
| 5167362 | Butt-splicing method To splice two metal tapes by means of a solder wire that is thicker than the tapes themselves, their terminal edges are positioned upon one electrode, a spacing shim is inserted upon one of the tapes, another electrode is lowered onto the shim, the wire i... | 12/01/1992 |
| 5125559 | Apparatus and method for butt-splicing metal tapes Means and method are presented for butt-splicing two metal tapes by confining molten solder between two carbon electrodes while the tape edges are moved together.... | 06/30/1992 |
| 4906805 | Method and apparatus for high frequency electrical cast welding and surface hardening Method and apparatus for depositing metal on, and bonding it to, a metal part or parts, either to provide hard facing metal on the metal part or to produce a cast weld between the parts. In the method, the metal to be deposited is melted before depositing... | 03/06/1990 |
| 4785154 | Method and apparatus for joining together the ends of a metallic band by resistance inert gas welding This method of electric welding metal band ends together comprises a fusion cycle with the introduction of inert gas, a cooling cycle with the introduction of cooling air, and an annealing cycle. The method is carried out in a fusion head having grippers ... | 11/15/1988 |
| 4704512 | Apparatus for butt welding In an apparatus for the butt welding of hollow molding of aluminum with two contact clamps (4, 5), movable toward each other, for the ends of the moldings to be joined together, one contact clamp (4) is fixed at the machine frame, and the other contact cl... | 11/03/1987 |
| 4535213 | Apparatus for welding in vertical, horizontal and slanting position A welding apparatus includes a mechanical hand assembly suspended from a support assembly rotatably mounted on a movable base. The hand assembly includes a first pair of mechanical hands connected to a hydraulic cylinder and a second mechanical hand coaxi... | 08/13/1985 |
| 4321448 | Method of and apparatus for welding metal bars A welding method in which two metal bars are disposed such that the opposing ends of these bars are placed in a welding mold with a predetermined welding gap preserved therebetween, and are jointed to each other by filling the space formed between the opp... | 03/23/1982 |
| 4319902 | Joining optical fiber end parts Optical fibers are welded together by positioning the end parts in vacuum chucks 10 and 11. Piezo-electric elements 8 force the chucks towards one another. The piezo-electric elements are put into operation by the power supply of a welding arc operating b... | 03/16/1982 |
| 4194621 | Strip of joined fastening elements and method for its manufacture A strip of nails or other fastening elements for use in a suitable driving machine is made by resistance-welding together a number of fastening elements. For example, the heads of adjacent nails may overlap and be resistance-welded together through protub... | 03/25/1980 |
| 4049414 | Method and apparatus for splicing optical fibers A method and apparatus are described for permanently splicing glass optical fibers. The fibers are aligned colinearly, and their endfaces are brought into contact. An electrical arc discharge is generated at the junction between the fibers and is moved al... | 09/20/1977 |
| 4026334 | Method of continuously processing metal cord A method of continuously processing metal cord is disclosed. The method comprises the steps of twisting a plurality of filaments together to form a cord, collecting the cord on a spool in such a manner that transfer segments are provided; straightening th... | 05/31/1977 |
| 3980859 | Cored wire junction Ductile junction of metal-sheathed composite wire, such as flux-cored welding wire for use in automatic arc welding machines, is provided by process comprising resistance upset welding.... | 09/14/1976 |
| 3960531 | Method and apparatus for splicing optical fibers A method and apparatus are described for permanently splicing glass optical fibers. The fibers are aligned colinearly, and their ends are brought into contact. Electric and magnetic fields are generated in the vicinity of the fiber end portions. The elect... | 06/01/1976 |
