Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 7350378 | Method for producing rotationally symmetrical quartz glass crucibles In a device (5) for the manufacture of a quartz glass crucible (2), one section (14, 15) of a wall (13) of the rotating quartz glass crucible (2) is heated at one time by means of at least two electrode arrangements (7, 8) d... | 04/01/2008 |
| 6965629 | Method and apparatus for initiating a pulsed arc discharge for nanopowder synthesis A nanopowder synthesis system having an autofuser device which obviates the need for external power switches, and which accommodates repeated discharges (of the order of 107) between ablating electrodes of precursor material at a high repetition rate (≧... | 11/15/2005 |
| 6853673 | Process and device for producing a quartz glass crucible by ring-like arc, and its quartz glass crucible The present invention provides a process and a device for producing a quartz glass crucible, which generates a stable ring-like arc and is suitable for the production of an excellent crucible having the large open diameter. In a production process and a devic... | 02/08/2005 |
| 6794599 | Device and method for manufacture of carbonaceous material An apparatus and method for manufacturing a carbonaceous material are provided. The carbonaceous material manufacturing apparatus includes a reaction tube and a gas supply portion. An anode and a cathode defining an arc discharge portion is placed in the reaction tu... | 09/21/2004 |
| 6765949 | Carbon nanostructures and methods of preparation An electric arc furnace and method for forming tubular carbon nanostructures comprising a first electrode (cathode) and an a second electrode (anode) opposite the first electrode, sources of voltage (V) and current (A) to create charged particles (Ie) and produce an... | 07/20/2004 |
| 5373529 | Metals purification by improved vacuum arc remelting The invention relates to improved apparatuses and methods for remelting metal alloys in furnaces, particularly consumable electrode vacuum arc furnaces. Excited reactive gas is injected into a stationary furnace arc zone, thus accelerating the reduction r... | 12/13/1994 |
| 5317592 | Direct resistance heating electrical furnace assembly and method of operating same A direct resistance heating electrical furnace of the type in which a bed of electrically conductive elements are located between two spaced electrodes in the furnace, and a method of controlling the operation of same, are provided. The furnace is of the ... | 05/31/1994 |
| 5245627 | Use of a radiating arc furnace for treating a dross containing a metal in order to recover this metal A process is disclosed, for treating dross containing a metal such as aluminum, in order to recover this metal, In this process, the dross to be treated is introduced into a rotary or oscillating furnace, in which it is heated to a temperature above the m... | 09/14/1993 |
| 5235611 | Stepped end rotary furnace The invention is directed to improved centrifugal rotary electric furnaces which are used for the heating and or fusion of minerals, such as quartz, and other materials having a high melting point. The furnace includes a generally cylindrical furnace shel... | 08/10/1993 |
| 5226056 | Plasma ashing method and apparatus therefor In a method for plasma ashing a resist film coated on a substrate, the temperature of the substrate is controlled initially at temperatures below that at which explosion of the resist film occurs until a surface portion of a resist film has been removed. ... | 07/06/1993 |
| 5189682 | Method for increasing the efficiency of a direct current electric arc furnace The invention provides a direct current electric arc furnace which is composed of a feeding system of direct current to the furnace, a movable electrode at the roof of the furnace, and a bottom electrode attached to the bottom of the furnace at the positi... | 02/23/1993 |
| 5177763 | Furnace bottom structure of direct current electric furnace A furnace bottom structure of a direct current electric furnace has at least one furnace bottom electrode and at least one gas injection tuyere provided in the furnace bottom refractory of the direct current electric furnace. Preferably, the furnace botto... | 01/05/1993 |
| 5138629 | Direct current electric arc furnace The invention provides a direct current electric arc furnace which is composed of a feeding system of direct current to the furnace, a movable electrode at the roof of the furnace, and a bottom electrode attached to the bottom of the furnace at the positi... | 08/11/1992 |
| 4657878 | Method of making high density, fusion cast basic metallurgical refractory and the refractory itself A novel method of making a refractory material is disclosed comprising the steps of providing an electrical arc metal furnace, charging that furnace with a charge of refractory oxide, and selecting voltage, amperage and electrode spacings to create novel ... | 04/14/1987 |
| 4569307 | Silicon melting and evaporation apparatus for high purity applications An apparatus for producing high purity silicon melts utilizes a solid silicon body which is drilled to provide bores into which electrodes are inserted. The electrodes preferably are also of silicon and an electric arc-current is passed through the electr... | 02/11/1986 |
| 4569733 | Method of treating rock to recover metal, oxygen, and water Rock is melted between electrodes and the resulting melt is subjected to electrolysis to recover oxygen and selected metals therefrom and to produce a melt of a unique composition so that it can be cast to produce structures with various properties.... | 02/11/1986 |
| 4548670 | Silicon melting and evaporation method for high purity applications A high-purity method of forming a silicon melt utilizes a solid silicon body which is drilled to provide bores into which electrodes are inserted. The electrodes preferably are also of silicon and an electric arc-current is passed through the electrodes t... | 10/22/1985 |
| 4217462 | Rotary furnace for the fusion of mineral bearing substances, apparatus and method Furnace apparatus and method, for the continuous electric heating or fusion of particulate mineral-bearing substances, wherein a cylindrical furnace housing is adapted to trunnion bearing, the housing having at least one detachable and elongated conical e... | 08/12/1980 |
| 4193757 | Furnace construction and methods of loading and sealing a combustion chamber therein A furnace construction capable of withstanding temperatures in excess of 3500° F. A uniquely suspended floor structure permits thermal expansion to occur as required within the furnace while permitting the admission of a cooling fluid to metal plate memb... | 03/18/1980 |
| 4080508 | Manufacture of carbides and the like A metal processing furnace of the indirect arc type having opposed electrodes projected into and establishing an ionized atmosphere in the furnace crucible is provided with apparatus that introduces a finely divided charge mixture consisting essentially o... | 03/21/1978 |
| 3975578 | Indirect arc metal melting furnace method An indirect arc metal melting furnace of the type having an insulated and essentially sealed or closed exterior shell is operated in a novel manner which thereby improves the electrical operating characteristics of the furnace.... | 08/17/1976 |
