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Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 7348523 | Method of induction weld forming with shear displacement step A shear-assisted solid state welding method for joining of metal parts, involves a first step of heating opposing surfaces in a non-passivating environment to a temperature in the hot working temperature range of the metal. A second step involves bringing the opposi... | 03/25/2008 |
| 7199325 | Method for interconnecting tubulars by forge welding A method for interconnecting tubulars by forge welding involves arranging the tubular ends that are to be interconnected at a distance, up to a few millimeters from each other in a shield gas chamber, into which a reducing non-explosive flushing fluid mixture (e.g. ... | 04/03/2007 |
| 7169239 | Solid expandable tubular members formed from very low carbon steel and method A very low carbon steel alloy is provided for use in manufacturing tubular members such as oil country tubular goods. The tubular members may be radially expanded from at least twenty percent to forty percent. Sections or joints of casing formed from the steel alloy... | 01/30/2007 |
| 7065875 | Bushing support ring for stabilizer bar A stabilizer bar assembly for an automotive vehicle includes a stabilizer bar, a bushing mounted to the stabilizer bar, and a support ring mounted onto the stabilizer bar adjacent the bushing to provide a stop to prevent the bushing from moving axially along the sta... | 06/27/2006 |
| 6931729 | Method for manufacturing a filler neck In response to the recent various requests, the present invention provides a method for manufacturing filler neck to facilitate jointing a mouthpiece and a feeding pipe which were manufactured separately into an integrated filler neck having an excellent hermeticity... | 08/23/2005 |
| 6911632 | Method for controlling the position of a foil strip edges A method for controlling the edges (7, 7′) of a foil strip guided in a shaping funnel of a device producing tubular bodies from the foil strip by an overlapping weld seam using a guide wedge, the strip being then welded. According to the invention, after we... | 06/28/2005 |
| 6822205 | Method for producing multilayer metal composite tubes A process for the production of multi-layer metal composite tubes (10), wherein a metal strip is shaped to form a tube (16) and butt-welded along its two longitudinal edges. A plastic inner layer (12) is applied by extrusion in firmly adhering m... | 11/23/2004 |
| 6713707 | Welding material and method without carrier A welding material is constructed and arranged to be positioned in electrically conductive relation between exterior surface portions of first and second weldable members at a location where the first and second weldable members are to be joined. The welding materia... | 03/30/2004 |
| 6621037 | Welding material with conductive sheet and method A welding material assembly is constructed and arranged to position a welding material in electrically conductive relation between exterior surface portions of first and second weldable members at a location where the first and second weldable members are... | 09/16/2003 |
| 6566624 | Welding assembly with nestable conductive ends A welding material in positioned in electrically conductive relation between exterior surface portions of first and second weldable members, such as hydroformed tubes, at a location where the first and second weldable members are to be joined. A welding d... | 05/20/2003 |
| 6384388 | Method of enhancing the bending process of a stabilizer bar A method of enhancing the bending process of a stabilizer bar by locally pre-heating the stabilizer bar immediately prior to formation. By pre-heating the stabilizer bar, the stress in the stabilizer bar is relieved at the bending areas. This allows large... | 05/07/2002 |
| 6380516 | Connecting clamp, connecting apparatus and connecting method A connecting clamp includes a heating member which surrounds a portion to be connected of a steel pipe and heats the portion to be connected, and a first clamp section and a second clamp section positioned on opposite sides of the portion to be connected ... | 04/30/2002 |
| 6365865 | Process for welding fixture pipes to opposite ends of hollow stabilizer's suspension arm for vehicle A welding process in which fixture pipes 3 are resistance welded to opposite ends of a hollow stabilizer's suspension arm 1 for a vehicle and thereafter, these two parts are subjected to arc welding, but with a first step of the ends of the hollow stabili... | 04/02/2002 |
| 6037556 | High frequency contact welding apparatus with skewed contacts In high frequency welding apparatus in which high frequency electrical heating current is supplied to metal surfaces to be welded together by contacts engaging the metal which is advanced toward a weld point, the contacts engage the metal in advance of th... | 03/14/2000 |
| 5968380 | Method for producing laser-welded tubes and apparatus for producing the same In case of producing a welded tube from a metal band by using laser welding, edges of the metal band are preheated so that the temperature at the edges of the metal band before laser welding is not less than a predetermined temperature, the preheated abut... | 10/19/1999 |
| 5942132 | Method of and apparatus for producing steel pipes A method of producing steel pipes is provided which comprises the steps of providing a steel strip, processing the steel strip into a preheated open pipe, preheating the open pipe at its two opposite longitudinal edges at a temperature higher than about t... | 08/24/1999 |
| 5902506 | Matching apparatus for connecting high frequency solid state electrical power generator to a load High frequency electrical heating apparatus in which metal parts are heated as they are advanced,either for annealing or forge welding purposes,and in which the electrical heating current is supplied by solid state D.C. to A.C. inverter through a load mat... | 05/11/1999 |
| 5721413 | Method for heating closely spaced portions of two pipes A method for heating pipes with closely spaced end portions that are to be joined by forge welding or the like. Two diametrically opposed contacts are attached to each end portion for supplying high frequency alternating current for resistance heating of ... | 02/24/1998 |
| 5567335 | Process and apparatus for welding sheet metal edges Sheet metal edges to be welded are preheated prior to welding. At a given welding speed, this results in a smaller temperature gradient in the material to be welded. Consequently the welding speed can be increased, or material which would otherwise provid... | 10/22/1996 |
| 5403986 | Structural member and method of making by cold rolling followed by induction or resistance welding A multiple component structural member is made by cold roll forming two continuous strips of metal on opposite sides of a third continuous strip of metal. The cold rolling process creates two hollow flange elements with a continuous aperture in which the ... | 04/04/1995 |
| 5360156 | Welding management apparatus A welding management apparatus for use with a tube production machine. A workpiece fed from a roll of metal strip is formed in a tubular formation having side surfaces opposite to each other. An upsetting pressure is applied to joint the opposite side sur... | 11/01/1994 |
| 5304768 | Welding management apparatus A welding management apparatus for use with a tube production machine adapted to form a workpiece fed from a roll of metal strip in a tubular formation having side surfaces opposite to each other, provide an upsetting pressure to butt the opposite side su... | 04/19/1994 |
| 5278382 | Method for the high-frequency heating of dielectric workpieces A method for the heating and joining together, preferably for welding, of workpieces by use of a generator. Where, during a heating interval the generator supplies high-frequency energy to at least two electrodes disposed on the workpiece and where the en... | 01/11/1994 |
| 5265787 | Welding management apparatus A welding management apparatus for use with a tube production machine. A workpiece fed from a roll of metal strip is formed in a tubular formation having side surfaces opposite to each other. An upsetting pressure is applied to joint the opposite side sur... | 11/30/1993 |
| 5163225 | Process for forming a structural member utilizing high frequency electrical induction or resistance welding A structural member which comprises a pair of hollow end sections and an intermediate web characterized in that each hollow end section is welded to the intermediate web so as to form two weld lines or joins extending along the structural member. Suitably... | 11/17/1992 |
| 5158227 | Process of making seamless metal tube A process for the continuous manufacture of seamless tube by confining a selected length of metal strip in the form of a tube and with at least two longitudinal abutting edges and completely melting a selected length of such tubular form to form a seamles... | 10/27/1992 |
| 5140123 | Continuous manufacturing method for a metal welded tube and a manufacturing apparatus therefor A continuous manufacturing method for a metal welded tube and a manufacturing apparatus therefor, which obtains a tubular member by continuously passing a metal band coil through molding rollers, guides the tubular member to abutting rollers to bring the ... | 08/18/1992 |
| 4971240 | Method and apparatus for forming heat exchanger tubes In a method and apparatus of forming a flat metal strip into a tube having generally flat side walls connected by bight portions along their opposite longitudinal edge portions comprising the steps of directing the strip between a pair of form rolls to be... | 11/20/1990 |
| 4846392 | Continuously variable speed, die-drawing device and process for metal, composites, and the like, and compositions therefrom A die-drawing and/or extrusion device is described for producing uniform and tapered metal and composite tubes from flatstock and for reducing the size of solid stock and formed tubes therefrom, and lamination of compatable materials in one operation. The... | 07/11/1989 |
| 4807801 | Method of ameliorating the residual stresses in metallic duplex tubes and the like and apparatus therefor A method of ameliorating the residual stresses in a metallic duplex tube and the like and an apparatus therefor, wherein the duplex tube includes a main tube defining the outer tube, and a thermal sleeve defining the inner tube which is inserted to the ou... | 02/28/1989 |
| 4740665 | Apparatus for automatically controlling heat input by high frequency power source for welding Variations of the output frequency (f(i)) of a high frequency power source (1) for welding a steel tube (7) are detected, the maximum and minimum values of the output as a result of this detection of the variations of the output frequency are obtained, th... | 04/26/1988 |
| 4736084 | Method and apparatus for heating opposing surfaces of two elements to be joined In a method for heating metal elements (1,2) which are to be joined, for example by forge welding, there is used a high frequency resistance heating. The elements are provided with surfaces to be welded and are positioned so that said surfaces constituted... | 04/05/1988 |
| 4508949 | Method and apparatus for welding tapered metal poles Methods and apparatus for manufacturing tapered, hollow metal poles which can be used for manufacturing poles of various lengths, tapers and cross-sectional dimensions with the same apparatus. A substantially complete, tapered tube is formed from a plate ... | 04/02/1985 |
| 4456803 | Method and apparatus for making an electric resistance welded tube A conductor is installed along a Vee-angle part of a tube to be welded for producing an electric welded tube by high frequency resistance or induction welding. The conductor is set closely above the Vee-angle part. A high-frequency current having about th... | 06/26/1984 |
| 4387288 | Method for welding automatic brake shoes A method and apparatus is provided for welding an edge surface of a curved metal brake shoe to a substantially flat metal brake shoe table surface. The apparatus has a positioning mechanism which positions the brake shoe table in longitudinal alignment wi... | 06/07/1983 |
| 4362921 | Welding of fins to tubing A method of manufacturing a solar panel element comprising a metal sheet or sheets secured to fluid-tight tubing substantially continuously along its length by metal which has been heated and cooled, e.g. weld metal, in which the tubing and the metal shee... | 12/07/1982 |
| 4344983 | Process and apparatus for manufacturing filaments of a refractory material by high-frequency heating The present invention concerns the technique for the manufacture of composite materials. It relates to a process and an apparatus which make it possible continuously to deposit refractory materials, in particular boron, onto a conductive filament heated b... | 08/17/1982 |
| 4310740 | Process for producing large-sized rectangular or square steel pipes A process for producing large-sized steel pipe of rectangular or square configuration from a single plate includes providing a predetermined length of steel plate. The plate is bent to form a longitudinally extending base, opposed sidewalls and a top wall... | 01/12/1982 |
| 4301348 | Process for producing large-sized rectangular or square steel pipes A process for producing large-sized square steel pipe includes the steps of continuously paying off steel plate from a roll of the same, removing strain from the plate while conveying the plate, and cutting the plate to predetermined lengths. The lengths ... | 11/17/1981 |
| 4254323 | Apparatus for monitoring and controlling a welding phenomenon in an electric resistance welding An apparatus for monitoring and controlling a welding phenomenon in an electric resistance welding process, which comprises a welding characteristics measuring instrument for carrying out digital measurement of at least one of high frequency welding chara... | 03/03/1981 |
