Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7563407 | Thermal lance assembly An improved thermal lance is made of a low carbon steel sheath having an internal bore and a thin cylindrical rod that is roll-formed from low carbon steel sheet. The rod being sized for conforming fit in the bore of the tube and has a length dimension that is longe... | 07/21/2009 |
| 7479251 | Device and method for casting and drawing out molten iron-containing and mineral materials The invention relates to a melting furnace having an electric or external heating system for storing melts and having a melt discharge outlet comprising a cooling device. An instrument for mechanically removing plugs which are blocking the melt discharge outlet is a... | 01/20/2009 |
| 7381383 | Treating apparatus, treating method and method of treating soil A treatment apparatus of the present invention includes a hermetic door 115b and a retort 115c as an interface for taking out a gaseous emission containing vaporized substances from an object to be treated which is being heated in a reduc... | 06/03/2008 |
| 7207400 | Coupler and roof drill bit assembly using such coupler A coupler for use in connecting together in a driving relationship a first member and a second member in a drill bit assembly. The coupler includes an elongate body that has opposite axial forward and rearward ends as well as contains a longitudinal bore. The elonga... | 04/24/2007 |
| 7069999 | Apparatus and method for routing a transmission line through a downhole tool A method for routing a transmission line through a tool joint having a primary and secondary shoulder, a central bore, and a longitudinal axis, includes drilling a straight channel, at a positive, nominal angle with respect to the longitudinal axis, through the tool... | 07/04/2006 |
| 6974787 | Gasoline sulfur reduction in fluid catalytic cracking The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above... | 12/13/2005 |
| 6923903 | Gasoline sulfur reduction in fluid catalytic cracking The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above... | 08/02/2005 |
| 6685876 | Method for automatically controlling hydraulic opener An automatic control method for a taphole opener for opening a taphole by giving impact and rotation to a drill unit holding a drilling rod and driving the drill unit forward and backward by a hydraulically driven feed motor, which method comprises the st... | 02/03/2004 |
| 6663825 | Method and apparatus for installing or replacing a furnace tap hole insert An apparatus for replacing a tap hole insert in a furnace includes a drill detachably mounted to a drive shaft in a boom arm of a utility machine with the drill adapted to remove the existing tap hole inserts to be replaced from outside of the furnace int... | 12/16/2003 |
| 6627146 | Stopper module device for a casting machine furnace apparatus This invention relates to a casting machine furnace apparatus including a casting machine furnace, a supply furnace in fluid communication with the machine furnace and operative to supply a molten metal to the machine furnace, and a stopper module device ... | 09/30/2003 |
| 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 |
| 6602461 | Arrangement for pouring a pourable melt made up of a copper alloy An arrangement for pouring a pourable melt made up of a copper alloy, which comprises a melting furnace, pivotable about a horizontal pivot axis, having a pouring tube which discharges pourable melt and through which the pourable melt can be conveyed unde... | 08/05/2003 |
| 6500383 | Tapping tool A tapping tool comprises a threaded portion and an upper gripping shank, and presents an axial bore which has its base wall proximate to the end of the threaded portion and opens at the end of the shank, there being present in proximity to the base wall a... | 12/31/2002 |
| 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 |
| 6379608 | Method for closing and opening a tapping hole of a metallurgical vessel In a method for closing and opening a tapping hole of a metallurgical vessel, in which method a closure body (4), which leaves clear an annular gap between the closure body (4) and the wall of the tapping hole, can be moved out of a waiting position (I) i... | 04/30/2002 |
| 6269890 | Tap hole drill A taphole boring machine serving two tapholes includes a support structure, a mount and a suspension device of which the mount is secured on the supporting structure and the suspension device has a tilting device for the mount with the suspension device f... | 08/07/2001 |
| 6251338 | Pivoting device with arm and control rod A pivot device for supporting a working device is disclosed. The pivot device has a load-bearing structure, an arm and a control rod. A first end of the arm is pivotably mounted in the load-bearing structure. The working device is pivotably connected to t... | 06/26/2001 |
| 6248288 | Rotating mechanism with arm A device for rotating a work element is disclosed. The device has a support structure, an arm mounted in the support structure in such a way that it can rotate, a rotation drive for rotating the arm around a rotation pin, the rotation drive being located ... | 06/19/2001 |
| 6245286 | Swivel device with cantilever arm A device for swiveling a working unit between a rest position and a work position is disclosed. The unit has an arm and a support structure, one end of the arm being arranged in the support structure in such a way that it can swivel. A swivel arm with an ... | 06/12/2001 |
| 6221313 | Taphole knockout device A knockout device for removing a taphole sleeve from a furnace wall. The device is comprised of a pneumatic hammer having an elongated body and a weight reciprocally movable by air pressure along the body. The body has a first end with an air inlet for re... | 04/24/2001 |
| 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 |
| 6110415 | Device for opening furnace tap holes The invention provides a remotely controlled furnace tap hole tapping system. The system is pneumatically driven and is able to tap holes placed at different heights, different positions, and different angles. The invention replaces an oxygen filled lance... | 08/29/2000 |
| 6086816 | Tap hole drilling machine for blast furnace, drill bit for use in tap hole drilling machine, and tap hole drilling method A tap hole drilling machine, a drill bit for use in it, and a drilling method are disclosed. A nitrogen gas supply line for pressurised nitrogen as a carrier gas and a cooling water supply line are provided to form water mist for cooling the drill bit, th... | 07/11/2000 |
| 6026997 | Stopper rod A stopper rod in the form of an elongate molded body having a longitudinal bore has an attachment device for attaching the stopper rod to a lifting and lowering mechanism. The attachment device comprises a first sleeve to be molded in-situ in the stopper ... | 02/22/2000 |
| 5888448 | Tap-hole drilling machine The invention relates to a tap-hole drilling machine comprising a separate guiding means for a tap-hole drill and a driving means to move this guiding means between a working position and a rest position. In the working position, the guiding means forms a... | 03/30/1999 |
| 5851414 | Tundish stopper rod for continuous casting The object of the present invention is to provide a tundish stopper rod for continuous casting which can be fitted onto a spindle correctly in a short time and which has a sufficiently high degree of heat resistance and mechanical strength to endure its h... | 12/22/1998 |
| 5846034 | Automated drill stem guide and method In a petroleum coking drum, a drill stem guide latches internally to a structure adjacent the drum opening, rather than externally to a flange about the drum opening. In preferred embodiments, the latching mechanism is spring loaded, and operated automati... | 12/08/1998 |
| 5783140 | Method and apparatus for opening discharge outlets A heating element comprising: a body having a heating section; heating means inserted in or adjacent to said body, said means capable of generating heat, having a heat flux Q1 at a temperature T1 ; and heat transfer and concentration means cap... | 07/21/1998 |
| 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 |
| 5657997 | Fixing device for a ceramic sealing plate A fixing device for a ceramic sealing plate in a carrying frame or cassette of a seal on a metallurgical vessel has the sealing plate held by a band on the carrying frame or the cassette. To press the sealing plate evenly along its perimeter, the band is ... | 08/19/1997 |
| 5610346 | Apparatus for storing and dropping expendable BOF sensors A sensor dropper for storing, shielding and dropping sensors into a BOF vessel. The sensor dropper includes a support frame to move the stored sensors toward or away from a sensor drop path leading into said BOF vessel, a dropper assembly supported on the... | 03/11/1997 |
| 5542650 | Apparatus for automatically cleaning smelt spouts of a chemical recovery furnace A smelt spout cleaner apparatus includes a cleaning head insertable into a smelt spout and movable in a substantially linear path along the smelt spout for thoroughly cleaning the spout. The cleaning head is mounted on one end of a substantially horizonta... | 08/06/1996 |
| 5538226 | Pushing machine moveable on rail for operating into the slag hole of steel smelting electric furnaces A pushing machine is described, which is capable of running to opposite directions, upon remote control, along a length of rail provided in front of the mouth or slag hole of an electric furnace (10) for the smelting of iron products. It shows, at the end... | 07/23/1996 |
| 5511768 | Tap hole plugging device Device for plugging a tap hole comprising an expulsion piston fitted in a plugging chamber, a first double-acting hydraulic actuator positioned behind the piston and a first channel passing through the piston for the passage of a piercing rod, and the fir... | 04/30/1996 |
| 5487532 | Device for inserting a lance into a pressurized container, in particular a blast furnace A device is presented which equips an opening made in a pressurized container, in particular a blast furnace, for the axial insertion of a lance. This device comprises an axial sealing member, a casing, a first fixed seat, a second axially movable seat an... | 01/30/1996 |
| 5476250 | Machine for piercing a taphole for a shaft furnace A machine is provided for piercing a taphole for a shaft furnace for applying the piercing rod method. The machine comprises a mounting (20), a drive means (42, 44), a clamp (34) for coupling the drive means to the rod (26) during its extraction. It is ch... | 12/19/1995 |
| 5439202 | Apparatus for removing a cover from a hot metal transfer car An apparatus for removing a cover from a transport car is mounted to the car and has a swing member connected to the cover of the car. The swing member is pulled away, with the cover, by rolling down a pair of guide members to a termination point. A winch... | 08/08/1995 |
| 5395095 | Combined machine for opening and plugging a taphole in a shaft furnace A combined machine for opening a taphole in a shaft furnace and for plugging the taphole with a plugging mass is presented. The machine comprises a mount, a suspension structure for the mount, drive means on the mount and a plugging device. The plugging d... | 03/07/1995 |
| 5393038 | Method facilitating the introduction of a piercing rod into a taphole of a shaft furnace and special clamp for implementing this method A method is provided for facilitating the introduction of a piercing rod into a taphole previously closed by a taphole clay. The rod is gripped by a clamp which imparts to the rod a powerful axial force and an oscillatory movement about its longitudinal a... | 02/28/1995 |
| 5351939 | Machine for piercing a taphole for a shaft furnace A machine for piercing a taphole for a shaft furnace in the so called "lost rod" method is presented. After the taphole is blocked with a taphole clay but before the taphole clay has fully hardened, a piercing rod is driven into the taphole clay by this m... | 10/04/1994 |
