Quotables
"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7976773 | Degassing apparatus having duplex vacuum vessel A degassing apparatus having duplex vacuum vessels for removing impurity gases from molten steel by backflow of molten steel thereby homogenizing molten steel composition. The apparatus includes duplex vacuum vessels of first and second vacuum vessels fixedly arrang... | 07/12/2011 |
| 7134300 | Method for controlling foam production in reduced pressure fining A method for controlling the foam produced when a molten material encounters reduced pressure in a vacuum chamber includes passing the molten material through an aging zone in the vacuum chamber in which the molten material is allowed to drain from between the bubbl... | 11/14/2006 |
| 7125438 | Method and an apparatus for continuously deaerating a liquid The invention relates to a method for continuously deaerating a liquid. The method comprises the step that the liquid is led into a closed container (1) so that a liquid surface (7) is formed within the container (1). The space above the liquid ... | 10/24/2006 |
| 6468467 | Method and apparatus for vacuum decarburization refining of molten steel In a straight barrel type vacuum refining apparatus, use is made of a combination of: a decarburization method wherein the flow rate of oxygen fed into a vacuum tank and the flow rate of an inert gas fed into the vacuum tank are regulated and, at the same... | 10/22/2002 |
| 6454829 | Method and device for the continuous degassing of molten metals The invention relates to a method and a device for the continuous degassing of molten metals and subsequent casting of the degassed metal, according to which the molten metal is guided into a vacuum for the purpose of degasification and after degasificati... | 09/24/2002 |
| 6156263 | Molten steel smelting apparatus for producing ultra-low carbon steel A molten steel refining apparatus and a method therefor, in which the carbon component of molten steel can be easily removed, the temperature drop of molten steel can be effectively reduced, and a stable operation is realized. The apparatus for refining m... | 12/05/2000 |
| 5914440 | Method and apparatus removal of solid particles from magnesium chloride electrolyte and molten magnesium by filtration The present invention is concerned with a system for the filtration of molten material. The system is particularly useful for removing MgO impurities present in molten magnesium chloride electrolyte. The invention also comprises a method for removing soli... | 06/22/1999 |
| 5911946 | Snorkel for a degassing vessel The present invention pertains to a snorkel for a degassing vessel, with a refractory lining and a gas-purging device arranged therein with a plurality of channels, which, distributed over the circumference of the snorkel, extend through the refractory li... | 06/15/1999 |
| 5868816 | Process for adjusting the composition of a liquid metal such as steel, and plant for its implementation A process for adjusting the composition of a liquid metal, such as steel, is provided wherein liquid metal is sucked up from a start receptacle into a reactor which is at a reduced pressure with respect to the start receptacle. First, the liquid metal is ... | 02/09/1999 |
| 5865908 | Composite diffusion type nitriding method, composite diffusion type nitriding apparatus and method for producing nitride A composite diffusion type nitriding method and a composite diffusion type nitriding apparatus of the present invention are effectively used for nitriding various materials, such as machine parts, as well as a material which is difficult for nitriding by ... | 02/02/1999 |
| 5853658 | Gas purging device in the blowpipe of a degassing vessel A gas flushing device for a blowpipe of a degassing vessel, the blowpipe being cladded with a fire resistant material. The gas flushing device has a plurality of channels which are distributed around the circumference of the blowpipe and pass through the ... | 12/29/1998 |
| 5520373 | Steelmaking degassing apparatus A method for degassing molten steel comprises the use of a lift gas which includes carbon dioxide. The inventive method includes providing a reaction zone isolated from the ambient atmosphere, and providing a bath of molten steel, at least a portion of wh... | 05/28/1996 |
| 5421562 | Gas-shielded siphonic valve A gas-shielded siphonic valve for controlling the flow of molten metal from one vessel to another. The valve includes a hollow conduit extending between the vessels above the surfaces of the metal therein with opposite ends thereof immersed in the metal i... | 06/06/1995 |
| 5316563 | Vacuum degassing method and its apparatus A vacuum degassing method wherein a molten substance at an elevated temperature in a storage tank is sucked to a vacuum degassing vessel through an uprising pipe connecting the storage tank and the vacuum degassing vessel by maintaining the vacuum degassi... | 05/31/1994 |
| 5299784 | Degassing vessel for the vacumm treatment of liquid steel This invention relates to a degassing vessel for the vacuum treatment of liquid steel, consisting of a lower, middle and upper part. To protect the heater rod, which in the degassing vessel is oriented at a right angle to the center axis, the invention es... | 04/05/1994 |
| 5242485 | Process and apparatus for vacuum treatment of metals A process and apparatus for the vacuum treatment of metals. In a tightly sealed vacuum treatment vessel, molten metal is preferably divided, on the surface, into a generally circular sector and a generally ring-shaped sector surrounding the generally circ... | 09/07/1993 |
| 5096164 | Steel-processing vessel having a graphite rod heating means A vessel for processing steel under vacuum is provided and includes a vessel body, a cover placed thereupon in a vacuum-tight manner, and a connection for a vacuum pump. To heat the vessel a heating mechanism is provided that comprises a graphite rod that... | 03/17/1992 |
| 5058865 | Liquid metal processing A vessel is provided having a first chamber 1 open to atmospheric pressure for receiving liquid metal and a second chamber 2 from which the metal is dispensed interconnected with the first chamber. The second chamber is sealed and coupled to means 4, 6 fo... | 10/22/1991 |
| 5024421 | Interlocking snorkel refractory A degresser snorkel for circulating molten metal from a ladle to a vacuum vessel to thereby degas the molten metal. The degasser snorkel includes an outer castable layer lined over the outer surface of a stainless steel snorkel can. An inner refractory li... | 06/18/1991 |
| 5011531 | Method and apparatus for degassing molten metal utilizing RH method A method and apparatus for vacuum degassing blows gas into molten metal so as to form a substantially uniformly distributed bubble over the path area defined by an induction pipe. In order to achieve this, discharge nozzles are separated into at least two... | 04/30/1991 |
| 4842643 | Apparatus for, purifying a melt, which, besides one or more impurities, essentially contains a light metal, in particular aluminum Apparatus for purifying a melt which, besides one or more impurities to be volatilized, contains essentially a light metal, in particular aluminum. The apparatus comprises a vacuum processing vessel, a vacuum pump, one or more conduits for supplying the m... | 06/27/1989 |
| 4541865 | Continuous vacuum degassing and casting of steel The invention provides an improved system for continuous processing of molten steel and other metals comprising continuous withdrawal, vacuum treatment and casting, employing a specialized post-treatment vessel stationed adjacent to a continually maintain... | 09/17/1985 |
| 4298376 | Method for treating molten steel and apparatus therefor A method for treating molten steel utilizing an induction coil, a ladle, a treating vessel and at least one passage pipe interconnecting the ladle and the treating vessel which includes the steps of lifting up a part of the molten steel from the ladle to ... | 11/03/1981 |
| 4241904 | Molten-metal treating vessel A molten-metal treating vessel is described having a lower section immersed in a bath of molten metal in a container so that the metal may be treated as desired while it is being partly introduced into and out of the treating vessel in a closed circuit, i... | 12/30/1980 |
