| Patent Number |
Title Of Patent |
Date Issued |
| 5819844 |
Beaver-tail tube assembly and tube changing method |
October 13, 1998 |
| An improved beaver-tail tube assembly is provided that is easily exchanged in place over a thin-slab casting mold by means of a conventional tube changer. The tube assembly includes a rectangular plate, and a tube body having a circular upper end that is mounted to an orifice in the plat |
| 5626164 |
Crack resistant valve plate assembly for a molten metal slide gate valve |
May 6, 1997 |
| A crack resistant valve plate assembly is provided for use in a slide gate valve. The valve plate assembly includes a refractory valve plate having an orifice positioned along its longitudinal center line, and truncated corners for focusing a clamping force toward the center line in the |
| 5259592 |
Leaf spring valve and method |
November 9, 1993 |
| A sliding gate valve having a frame, a sliding carrier within the frame, means for securing the carrier in reciprocating relationship to the frame, a stationary plate secured at the upper portion of the valve, and a slide gate secured at the lower portion of the valve is disclosed. In on |
| 5188743 |
Plate, changer, plate and method |
February 23, 1993 |
| A non-reversible plate having a depending tube structure with a discharge opening at the bottom in which there is a plate at the upper portion, rectangular in configuration, and which has an irregular anti-reversal collar beneath the plate portion is disclosed. Desirably the collar is |
| 5174908 |
Non-reversible sliding gate, valve and method |
December 29, 1992 |
| A slide gate having an offset teeming orifice for use in a sequential sliding gate valve having asymmetrical means for inserting said gate along a direction of loading in which the slide plate has asymmetrical means for engaging the asymmetrical means for loading and thereby insure prope |
| 5062553 |
Cantilever spring mount for sliding gate valve and method |
November 5, 1991 |
| A method of providing a cantilever spring or a beam which is attached to the frame of a sliding gate valve is disclosed. The apparatus comprises a cantilever spring which is essentially flat and rectangular. A spring mount is provided to anchor the head end of the spring to permit the ot |
| 5052598 |
Sliding gate valve method and replaceable retractories |
October 1, 1991 |
| A three plate non-reversible sliding gate system and tube holder where the plates and tube holder include modified corner configurations so as to preclude reverse loading of the system. |
| 5050847 |
Staged valve multi-hole injection block and method |
September 24, 1991 |
| An injection block of an injection valve intended for bottom injection but optionally operable on the side of a teeming vessel for side injection is disclosed. The invention is directed specifically to a multi-passageway multi-orifice injection block in which the injection passages may b |
| 5037072 |
Injection block and method |
August 6, 1991 |
| An injection block of an injection valve is disclosed which is normally intended for installation in a metallurgical vessel or holding vessel containing ferrous metal. Other metals can be similarly treated by injection metallurgy, but the maximum utility is believed to be involved in |
| 4951851 |
Tube holder and method |
August 28, 1990 |
| The configuration of a thickened tube holder which flares outwardly at its downstream portion leaving an undercut which is engaged by a rocker arm spring loaded assembly. The pour tube is provided with a collar at its upstream portion, and an undercut mount immediately beneath the collar |
| 4919397 |
Stationary injection block and injection slide plate for use with an injection valve |
April 24, 1990 |
| A multiple orifice injection valve having a stationary block which communicates between the vessel and a sliding plate. The sliding plate is provided with at least one injection port and drive means for rotatably indexing the same in and out of register with the various orifices in the |
| 4892235 |
Joint and shroud support for pour tube and collector nozzle |
January 9, 1990 |
| A shroud or submerged pour tube which has a sealing cup of an essentially frustoconical configuration at its upper end is disclosed. The sealing cup matingly engages a bullet-shaped nose on the lower portion of the collector nozzle extending downwardly from the valve. The combination of |
| 4824079 |
Injection valve components and method |
April 25, 1989 |
| An injection valve which is positioned on the underneath portion of a teeming vessel is disclosed. The valve itself includes a mounting plate, and a well block nozzle which is in open communication with the metal being teemed in the vessel. Beneath the sliding injection plate a sliding |
| 4799649 |
Injection valve components and method |
January 24, 1989 |
| An injection valve which is positioned on the underneath portion of a teeming vessel is disclosed. It may be positioned under a ladle, or under a tundish. The valve itself includes a mounting plate, and a well block nozzle which is in open communication with the metal being teemed in the |
| 4789085 |
Slide gate for a sliding gate valve |
December 6, 1988 |
| A sliding gate valve and more specifically one in which bilateral symmetry is preserved in both the stationary plate and the slide gate. More specifically, the slide gate is provided with a metallic frame which retains a monolithic refractory into which errosion resistant refractory |
| 4771992 |
Multi-hole injection valve |
September 20, 1988 |
| A multiple orifice injection valve having a stationary block which communicates between the vessel and a sliding plate. The sliding plate is provided with at least one injection port and drive means for rotatably indexing the same in and out of register with the various orifices in the |
| 4738380 |
Self-adjusting refractory joint |
April 19, 1988 |
| A self-adjusting refractory joint which finds principle utility in teeming valves in which a pair of overlapping collars are provided on a plate and on the pour tube, the collar on the plate extending downwardly in surrounding relationship to the teeming orifice, and the collar on the |
| 4715423 |
Composite break ring method |
December 29, 1987 |
| A method of forming a break ring by providing a frame having a cross-section complementary to the exterior portion of the break ring, and the frame having an interior base of the cross-section of the break ring which will be in contact with the molten metal in the continuous caster is |
| 4693296 |
Composite break ring for continuous casting |
September 15, 1987 |
| A break ring formed by providing a frame having a cross-section complementary to the exterior portion of the break ring, and the frame having an interior base of the cross-section of the break ring which will be in contact with the molten metal in the continuous caster is disclosed. |
| 4667938 |
Rocker arm/spring assembly |
May 26, 1987 |
| A rocker arm/spring assembly which can be readily removed without the use of any tools whenever the refractory is removed from the valve is disclosed. Since the refractory is regularly removed from the valve, the rocker arm and spring assembly can be removed, and the springs replaced |
| 4667937 |
Heat shield for sliding gate valve |
May 26, 1987 |
| A heat shield with refractory lining which is replaceable and anchored to the heat shield frame which, when employed on a sliding gate valve, can also serve to mount a collector. |
| 4603842 |
Method of sliding gate valve operation |
August 5, 1986 |
| Disclosed is a sliding gate valve employed on the side of a furnace as a furnace valve, in which the mechanism is so structured that the shut off occurs by directing the slide gate to the up position rather than the down position. In addition, to facilitate a reduction in space at the sl |
| 4602729 |
Stationary plate and well nozzle for use in a sliding gate valve |
July 29, 1986 |
| A top plate and collector nozzle for use with a sliding gate valve, comprising, in combination, a frame retaining a refractory and having a central ring like portion defining an opening with a well nozzle seat thereabout, a well nozzle having one end proportioned to engage the well n |
| 4582232 |
Valve, clamp, refractory and method |
April 15, 1986 |
| Disclosed is a sliding gate valve and clamp mechanism which permits the utilization of bandless refractory for the top plate, sliding gate, and the attachment of a replaceable collector to the sliding gate. The refractory is formed with curvilinear side edges tapered centrally toward |
| 4570908 |
Furnace valve |
February 18, 1986 |
| Disclosed is a sliding gate valve employed on the side of a furnace as a furnace valve, in which the mechanism is so structured that the shut off occurs by directing the slide gate to the up position rather than the down position. In addition, to facilitate a reduction in space at the sl |
| 4545512 |
Full throttle valve and method of tube and gate change |
October 8, 1985 |
| A sliding gate valve of the type in which refractory gates are sequentially disposed in operative position beneath the pour opening from a teeming vessel, such as a tundish, is effective to controllably throttle the metal flow stream from the vessel. Operator means for positioning the ga |
| 4545406 |
Valve position indicator and method |
October 8, 1985 |
| Disclosed is a method and apparatus for indicating the position of a hydraulically actuated device by measuring the volume of hydraulic fluid flow in and out of the hydraulic actuator together with separate measurement corrections to compensate for the hydraulic system elasticity and |
| 4474362 |
Valve and method and components thereof |
October 2, 1984 |
| Disclosed is a sliding gate valve employed on the side of a furnace as a furnace valve, in which the mechanism is so structured that the shut off occurs by directing the slide gate to the up position rather than the down position. In addition, to facilitate a reduction in space at the sl |
| 4415103 |
Full throttle valve and method of tube and gate change |
November 15, 1983 |
| A sliding gate valve of the type in which refractory gates are sequentially disposed in operative position beneath the pour opening from a teeming vessel, such as a tundish, is effective to controllably throttle the metal flow stream from the vessel. Separate drives are employed for disp |
| 4381102 |
Shroud support and method for shroud engagement with teeming valve |
April 26, 1983 |
| Shown is a method for preventing or reducing cracking in collector nozzles in teeming vessels by securing the shroud underneath the nozzle with a predetermined load, sufficient to cause fluid tight connection between the shroud and the collector nozzle, and yet not enough to crack the co |
| 4313596 |
Shroud support and method for shroud engagement with teeming valve |
February 2, 1982 |
| A shroud support or tube holder is disclosed for use with a teeming vessel having a gate valve. In the instance disclosed, the gate valve is a sliding valve, and the shroud is positioned by means of a boom in pour tube relationship with the nozzle of the valve. The boom is pivotally |
| 4275825 |
Clamp-on tube holder and method |
June 30, 1981 |
| A clamp-on tube holder for use in teeming metal is disclosed having a slotted tube holder band and a toggle assembly which biases the slot for clamping the tube holder onto the nozzle of a ladle. Independently, a yoke is engaged with the tube holder, and a handle engaged with a socket on |
