Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7597221 | Elongated stopper device An enlongated stopper device for flow-control of molten metal from a vessel, containing molten metal, said device comprising: a) a body (10) made of a refractory ceramic material, b) a bore hole (12), having a longitudinal axis (A) and extending from a... | 10/06/2009 |
| 7322496 | Brick body for rotary nozzle In a rotary nozzle brick body formed into a substantially egg-like shape in it's plan view, the present invention secures a contact area of a nozzle portion and improves a configuration factor which considerably affecting the durability of the body. A rotary nozzle ... | 01/29/2008 |
| 7279128 | Molten metal pressure pour furnace and metering valve An apparatus and process are provided for discharging a dose of a molten metal from a pressure pour furnace. A heating chamber of the furnace is used to keep the molten metal at a selected temperature. A sealing port between the heating chamber and a pressure chambe... | 10/09/2007 |
| 7225953 | Valve gate assembly A valve gate assembly is provided for regulating a flow of molten material through a gate and into a mold. The valve gate assembly includes a movable valve having a closed position closing the gate to prevent molten material from entering the mold and an opened posi... | 06/05/2007 |
| 7028868 | Refractory nozzle A refractory nozzle is provided for arrangement in or on a wall of a metallurgical crucible, particularly for steel melts, having a discharge duct surrounding a flow passage, wherein the discharge duct has a surface delimiting the flow passage and an outer housing. ... | 04/18/2006 |
| 6913730 | Stopper rod There is provided a refractory mono-block stopper of substantially cylindrical configuration having an upper end, a lower end and an axial bore extending downwardly from the upper end, means being provided in the axial bore at a distance d from the upper end for att... | 07/05/2005 |
| 6896162 | Sliding nozzle unit A sliding nozzle unit in which a face pressure load is released by inserting a cotter into a press member provided in an open close metal frame and sliding the cotter on an inclination block provided on the side face of a sliding metal frame thereby flexing a resili... | 05/24/2005 |
| 6814268 | Crack resistant valve plate for a slide gate valve The invention relates to a refractory plate (1) for a slide gate valve, having a pouring hole (3), circumscribed by a circle C of center (4), at least a portion of the edges (15, 16, 17, 18) of the plate (1) are angularly oriented ... | 11/09/2004 |
| 6763981 | Well block for metallurgical vessel A well block for use in a refractory lining in a metallurgical vessel for holding molten metal. The well block is comprised of a body formed of a refractory material. The body has a top surface, a bottom surface, an inner surface defining a bore that extends through... | 07/20/2004 |
| 6602069 | Plug members for steel furnaces A dart has a metal bar 1 passing through a ceramic, shaped, dart head 2 and then through a cylindrical ceramic dart stem 3. A sleeve 4 of a carbonaceous or reactive material is provided about the stem 3 or a layer of that material can be formed on the low... | 08/05/2003 |
| 6533147 | Pouring tube The present invention concerns a pouring tube of refractory material comprised of a tubular element and equipped at its upper end with a plane plate, the side faces and lower face of the said plate and the upper end of the tubular part being protected by ... | 03/18/2003 |
| 6495093 | Device for closing a tap hole of a metallurgical vessel The invention relates to a device for closing a tap hole of a metallurgical vessel, in particular a converter, for the purpose of separating a molten metal and slag, having a slag stopper 1, which is situated outside the vessel, which provides an actuable... | 12/17/2002 |
| 6478201 | Stopper for continuous casting A stopper for continuous casting comprising a stopper rod and a spindle for actuating the stopper rod, wherein the stopper rod includes a joining nut integrally formed therewith, an upper end surface of the stopper rod being formed so as to be smooth, and... | 11/12/2002 |
| 6471911 | Method and device for sealing a tap hole in metallurgical containers In a method for sealing a tap opening in a metallurgical container a plug with a plug sleeve and a refractory flowable material is provided having a metal rod or pipe surrounded by a protective pipe connected thereto. The plug sleeve and the protective pi... | 10/29/2002 |
| 6464116 | Stopper rod The present invention concerns a stopper rod whose gas tightness and rigidity are improved. In particular, the stopper rod of the present. invention has means for maintaining the compression of the sealing gasket (11, 11') in contact with the annular seal... | 10/15/2002 |
| 6422436 | Refractory nozzle A refractory nozzle is provided having upper and lower members. According to an embodiment of the invention, the upper member has an axial passage having a mouth at a top end and an enlarged diameter section at its bottom end. The lower member has a top f... | 07/23/2002 |
| 6422435 | Slide gate for a container containing molten metal A sliding gate valve (20) for a container containing molten metal has a housing portion (14) securable to the container and a slider unit (30) which is longitudinally movable with respect to the container. Respective refractory valve plates (22, 23) are i... | 07/23/2002 |
| 6415967 | Closure plate and a slide gate on the outlet of container containing molten metal A valve plate for a sliding gate valve has a refractory plate and a metal shell surrounding it. Associated with the plate is a centering device which is preferably constituted by two abutment surfaces, which are arranged at a defined spacing from one anot... | 07/09/2002 |
| 6409056 | Refractory product A refractory shroud device having an internal bore for through passage of molten metal, said device comprising, a body defining at least a portion of said bore, and having sufficient length to allow an end thereof to become immersed under normal operation... | 06/25/2002 |
| 6382477 | Apparatus for controlling amount of teeming molten metal and slide plate used for the same This invention intends to provide a molten metal pouring amount control apparatus in which a sliding resistance of a slide frame is small and a pressing force around a nozzle hole is stabilized so that there is no fear that any trouble such as a molten me... | 05/07/2002 |
| 6367671 | Stopper rod The present invention concerns a one-piece stopper rod whose gas tightness is improved. In particular, the stopper rod of the present invention has a body of refractory material comprised at least partially of a refractory material relatively impermeable ... | 04/09/2002 |
| 6120726 | Automatic tapping thimble The invention relates to an automatically opening tapping thimble made from a refractory material for casting crucibles which are used in aluminothermic reactions. This thimble consists entirely or partially of air-permeable graphite or metal whose meltin... | 09/19/2000 |
| 6045015 | Coupling for a linear actuator and a sliding valve unit for a sliding gate valve of a molten metal vessel A coupling is used to couple a linear actuator with a slider valve unit in a sliding gate valve for a molten metal vessel. The slider valve unit is slidably mounted in a slider housing for movement in a longitudinal direction, and has a push rod for this ... | 04/04/2000 |
| 5971233 | Method and apparatus for placing refractory sand in the discharge channel of a metallurgical vessel A method of placing a quantity of refractory sand in the discharge channel of a bottom discharging metallurgical vessel includes the steps of orienting the vessel whereby the channel is presented in a horizontal direction, and opening the channel. A gener... | 10/26/1999 |
| 5916473 | Steel pouring nozzle A nozzle for a steel pouring ladle having upper and lower nozzle portions and a stopper rod attached to a lower nozzle portion. The upper nozzle portion includes an upper nozzle housing and an upper nozzle core positioned within the upper nozzle housing, ... | 06/29/1999 |
| 5820815 | Cooled tapping device A cooled elongated, preferably threaded and, tapered, metallurgical taphole plug and a method for using it are described. The plug is inserted into a taphole to cause a plug of molten material to freeze in the taphole such that molten material flow within... | 10/13/1998 |
| 5718415 | Flow control device for the outlet nozzle of a metallurgical vessel A flow control device for the outlet nozzle for a molten metal handling vessel, such as a ladle, includes a plug that fits in the outlet nozzle to define a gap between the plug and a closure for the nozzle. The plug has a plurality of apertures which are ... | 02/17/1998 |
| 5695674 | Casting flow control device The device for controlling a pour rate according to the invention, which comprises a stationary upper plate (8), a movable plate (10) carried by a carriage (9) and a pouring tube (2). Control of the rate takes place by gliding the movable plate (10) again... | 12/09/1997 |
| 5637250 | Device for automatically operating slide gates for liquid metal containers A device for automatically operating slide gates for liquid metal containers, involving a fixed plate assembly rigid with a container base and a movable plate assembly hinged to the fixed plate assembly along a support element provided near a lateral edge... | 06/10/1997 |
| 5614450 | Spout-filling composition and method for applying A spout-filling composition has from about 50% to about 70% by weight magnesium-aluminate spinel aggregate, from about 50% to about 30% by weight quartz sand, and lampblack in an additional amount of from about 0.25% to about 5.00% by weight of the magnes... | 03/25/1997 |
| 5451036 | Metallurgical dart and method of assembly A metallurgical dart includes an enlarged refractory head having a top, a bottom, and a central through hole extending from top to bottom of the head and lined with a metallic sleeve, with a portion of the lining sleeve projecting beyond the top and/or bo... | 09/19/1995 |
| 5374036 | Metallurgical pouring vessels A method and product improve the positioning of loose anti-skulling material in the outlet nozzle zone of a metallurgical pouring vessel. The formation of skull in the outlet nozzle zone of a metallurgical pouring vessel is inhibited by positioning in the... | 12/20/1994 |
| 5373976 | Refractory zirconia mortar An erosion resistant refractory mortar composition is described which is suitable for bonding a zirconia insert in an alumina graphite plate of a sliding gate valve. The refractory mortar is made from a mix consisting of, in weight percent, about 50%-85% ... | 12/20/1994 |
| 5303905 | Refractory ceramic stopper, apparatus for support thereof, and assembly thereof A refractory ceramic stopper has therein a recess including an annular outwardly enlarged portion defining a stop surface. A stopper rod inserted into the recess in the stopper has a support surface. A plurality of spreadable members having opposite ends ... | 04/19/1994 |
| 5286009 | Device for controlling the pouring of molten materials A device for controlling the pouring of a molten material from a crucible or other container. The device (10) includes an annular retainer ring (12) for mounting in the drain opening in the bottom of a conventional crucible (16), the retainer ring definin... | 02/15/1994 |
| 5259596 | Erosion resistant stopper rod Erosion resistant stopper rod for steel casting having an elongated body of a first refractory material and a sleeve of a second refractory material having elevated erosion resistance characteristics. The sleeve may be copressed with the stopper rod body ... | 11/09/1993 |
| 5259595 | Pressure pouring furnace A pressure pouring furnace includes a molten metal chamber containing molten metal within a furnace body, a receiving siphon and a pouring siphon both communicating with each other at the bottom of the molten metal chamber, a furnace cover sealably coveri... | 11/09/1993 |
| 5253848 | Valve for molten metal conduit A device for stopping flow of molten metal through a conduit having a longitudinal central passage. A ceramic seal is placed through a wall of a ceramic pipe for preventing flow of the molten metal through the opening in the wall of the ceramic pipe. A no... | 10/19/1993 |
| 5249717 | Rotary nozzle A rotary nozzle which is simple in construction and easy to manufacture its bricks, has no danger of leakage of molten steel and is capable of rotatably connecting a collector nozzle and a long nozzle. The rotary nozzle includes a fixed plate brick attach... | 10/05/1993 |
| 5249780 | Slag control shape release apparatus for molten metal vessels A slag control shape is releasably mounted on a cover for a molten metal vessel. An actuator is connected to a slag control shape release member to retract the release member from a first position engaged with the slag control shape to a second position s... | 10/05/1993 |
