Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 6946041 | Material for shadow mask, method for production thereof, shadow mask and image receiving tube A material for shadow mask having the following composition of components: C≦0.0008 wt %, Si≦0.03 wt %, Mn:0.1 to 0.5 wt %, P≦0.02 wt %, S≦0.02 wt %, Al:0.01 to 0.07 wt %, N≦0.0030 wt %, B: an amount satisfying the formula: 5 ppm≦B−11/14×N≦30 ppm, b... | 09/20/2005 |
| 6193819 | Method for manufacturing cold rolled shadow mask steel sheet with stacked annealing A method for manufacturing a cold rolled steel sheet for use in a shadow mask is disclosed, in which without adding an expensive alloy element, a short intermediate decarburization annealing is carried out, and despite this fact, a forming defect does not... | 02/27/2001 |
| 5882445 | Method of making semi-finished metal products A method for producing metallic semifinished products such as strip or wire rom metallic work materials which have a high melting point and are difficult to shape, comprising the steps of a) first, alloying at least one element for lowering the melting poi... | 03/16/1999 |
| 5414246 | Apparatus for scaleless induction heating A method and apparatus for carrying out scaleless inductive heating of ferrous parts comprising (i) using an integrated manifold-inductor quenchant device, and while gradually flowing a diluted combustible gas into the spacing between the inductor and par... | 05/09/1995 |
| 5401339 | Atmospheres for decarburize annealing steels A process for producing low-cost atmospheres suitable for decarburize annealing carbon steels from non-cryogenically generated nitrogen containing up to 1.54 residual oxygen by catalytically deoxygenating a non-cryogenically generated nitrogen stream at l... | 03/28/1995 |
| 5205485 | Apparatus and method of controlling moisture content within a reaction vessel Method and apparatus for controlling the dew point in a reaction vessel in which a dew point reading is converted to an electric current signal which is coordinated with a preselected dew point range and translated into a frequency which is transmitted to... | 04/27/1993 |
| 5152847 | Method of decarburization annealing ferrous metal powders without sintering A method and apparatus 10 are disclosed for annealing metal powder so at to decrease the carbon content of the powder while also reducing the oxygen content thereof.... | 10/06/1992 |
| 5078808 | Method of making regular grain oriented silicon steel without a hot band anneal A process of producing regular grain oriented silicon steel having a final thickness of from 7 mils (0.18 mm) to about 18 mils (0.45 mm) including the steps of providing a silicon steel hot band, removing hot band scale, cold rolling to intermediate gauge... | 01/07/1992 |
| 5069728 | Process for heat treating metals in a continuous oven under controlled atmosphere Heat treating metals by continuous longitudinal passage of metallic pieces in an elongated treating zone under controlled atmosphere having a high temperature upstream end where the controlled atmosphere comprises nitrogen and reducing chemical substances... | 12/03/1991 |
| 5061326 | Method of making high silicon, low carbon regular grain oriented silicon steel A process of producing high silicon, low melt carbon regular grain electrical silicon steel having a final gauge of from 14 mils (0.35 mm) to about 6 mils (0.15 mm) or less, including the steps of providing a hot band and removing the hot band scale, if n... | 10/29/1991 |
| 5051138 | Method of producing grain oriented electrical steel sheet having high magnetic flux A method of producing a grain oriented electrical steel sheet having a high magnetic flux density comprises the steps of continuously rapid quench solidifying a molten steel essentially consisting of 0.03 to 0.10% of C, 2.5 to 4.5% of Si, 0.02 to 0.15% of... | 09/24/1991 |
| 5049185 | Method and arrangement for supplying liquid to an oven The disclosure relates to a method for supplying, with a lance (11), a liquid to a heat treatment oven, the liquid being vaporized by the oven heat and being introduced into the oven with the aid of a carrier gas, and a lance (11) for carrying the method ... | 09/17/1991 |
| 4979997 | Process for producing grain-oriented electrical steel sheet having superior magnetic and surface film characteristics A process for producing a grain-oriented steel sheet having superior magnetic and surface film characteristics, which comprises the steps of: heating to a temperature of 1200° C. or lower an electrical steel slab comprising 0.025 to 0.075 wt % C, 2.5 to ... | 12/25/1990 |
| 4647319 | Method for quantitatively detecting the decarburization reaction in the production process of an electrical steel sheet The decarburization reaction which occurs in the production of an electrical steel sheet is quantitatively detected by passing an electromagnetic wave beam into the vicinity of the sheet, which is positioned in an annealing furnace, and then measuring the... | 03/03/1987 |
| 4526817 | Process for surface diffusing steel products in coil form Steel product in coil form such as sheet steel is uncoiled, then preheated, continuously transported through a lead bath containing chromium, then cooled, and finally recoiled. When the coiled steel does not have titanium, titanium is included in the bath... | 07/02/1985 |
| 4497671 | Processed ferrous metal and process of production Processed low carbon iron metal and process and apparatus for its production, using high water-vapordecarburization, are provided. The iron metal product is characterized by fine grain structure with average carbon content less than about 0.04%. The proce... | 02/05/1985 |
| 4450017 | Gaseous decarburizing mixtures of hydrogen, carbon dioxide and a carrier gas A process for decarburizing ferrous metals and in particular electrical steels such as motor and transformer laminations wherein metal articles are treated at temperature under a furnace atmosphere generated by injecting N2 --CO2 --H... | 05/22/1984 |
| 4427460 | Method of making material for shadow masks The present invention is concerned with a method of making material for shadow masks to be incorporated in cathode ray tubes for colour TV sets. A coil of cold rolled low carbon Al-killed steel is forcibly decarburized through an open coil annealing until a qu... | 01/24/1984 |
| 4414043 | Continuous decarburization annealing with recycle to convert carbon monoxide In the decarburization annealing of steel strip, wherein the annealing atmosphere flows counter to the strip motion in the furnace, there is an undesirable buildup of carbon monoxide in the zone where the strip enters the furnace. Carbon monoxide is undes... | 11/08/1983 |
| 4375378 | Process for producing spheroidized wire rod A process for producing a wire rod for cold forging comprising: rapidly cooling the wire rod after hot rolling so as to give a rapidly cooled structure to the wire rod and to form a predetermined thickness of scale on the wire rod; and subjecting the rapidly c... | 03/01/1983 |
| 4325752 | Method for making shadow masks Al killed cold rolled sheet is manufactured. The sheet is composed of C: less than 0.01%, Mn: 0.10-1.00%, S: less than 0.025%, Sol.Al: 0.010-0.120%, N: less than 100 ppm, balance being Fe and impurities. The above N and Sol. Al are in relation of Sol.Al/N×14/27ࣙ... | 04/20/1982 |
| 4285742 | Heat treatment method In order to decarburize ferrous metal without recourse to an exothermic generator, an inert gas (typically nitrogen), water and a liquid or vaporous compound of carbon, hydrogen and oxygen (typically methanol) are admitted to a working chamber of the heat... | 08/25/1981 |
| 4049472 | Atmosphere compositions and methods of using same for surface treating ferrous metals Atmosphere compositions and processes utilizing the compositions for heat treating ferrous metal articles under a controlled furnace atmosphere to either maintain or change the surface chemistry of the article being treated are disclosed in the following ... | 09/20/1977 |
| 4007064 | Process of producing surface-decarburized steel sheets or plates A process for producing surface-decarburized steel sheets or plates involves the formation of a package or pile by alternately superimposing decarburizing high alloy chromium steel sheet layer(s) and the steel sheets(s) or plate(s) on each other. Edge wel... | 02/08/1977 |
| 3959029 | Process of making cold reduced Al-stabilized steel having high drawability In a two stage cold reducing process, Al-stabilized steel is subjected to a decarburizing treatment as intermediate annealing between the first and second cold reducing, to impart unexpectedly high drawability to Al-stabilized steel, the drawability being... | 05/25/1976 |
| 3950191 | Cold rolled steel sheets having an excellent enamelability and a method for producing said cold rolled steel sheets Steel sheets having an excellent enamelability are produced by adjusting the carbon, silicon, manganese, aluminum, oxygen and boron contents in a molten steel to be not more than 0.020% of carbon, not more than 0.03% of silicon, not more than 0.50% of man... | 04/13/1976 |
| 3939013 | Process for producing rimmed enameling steel A cold-rolled rimmed steel composition including vanadium and nitrogen, and process for producing the same with a preferred grain structure, which steel is particularly adapted for one-coat vitreous enameling.... | 02/17/1976 |
