| Patents for F27D 3 - Charging; Discharging; Manipulation of charge (11,678) |
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| 12/01/1981 | US4303229 Mechanical punching device for punching the tuyeres of a converter |
| 11/25/1981 | EP0040340A1 Sliding plate for sliding gate closures and sliding gate closure |
| 11/24/1981 | US4302519 Sagger with friction-reducing spheres, rotation |
| 11/17/1981 | US4300881 Truck or the like for conveying ceramic articles through a kiln |
| 11/17/1981 | US4300753 Hot metal runner system with air pollution controls |
| 11/11/1981 | EP0039630A1 Skid provided with refractory ledges for a walking beam furnace |
| 11/10/1981 | US4299566 Metal preheat conveyor with improved air flow properties |
| 11/10/1981 | US4299525 Lug loader |
| 11/04/1981 | EP0039035A1 Device for removing a fluid layer from a bath |
| 10/27/1981 | CA1111253A1 Coal gasification plant |
| 10/27/1981 | CA1111245A1 Tap-hole closing arrangement of a metallurgical vessel |
| 10/13/1981 | US4294437 Slide closure for the pouring nozzle of a molten metal vessel |
| 10/13/1981 | US4294435 Method for agitation of molten metal and furnace for agitation of molten metal |
| 10/06/1981 | US4293299 Load support device for heat furnaces |
| 09/23/1981 | EP0036049A1 Electric-arc furnace structure and method for heating refractory materials |
| 09/22/1981 | US4291108 Firing in sagger on balls |
| 09/22/1981 | US4290457 Truncated triangular insulator |
| 09/22/1981 | CA1109513A1 Atmospheric control of flux pre-melting furnace |
| 09/22/1981 | CA1109496A1 Brick dehacker and stacker |
| 09/22/1981 | CA1109255A1 Protective refractory member |
| 09/15/1981 | US4289944 Apparatus for reheating, storing and conveying cast bars |
| 09/08/1981 | US4288219 Refractory insulated member and method of installation thereof in a reheat furnace |
| 09/08/1981 | US4288216 Calciner with tapered reverse feed spiral |
| 09/08/1981 | US4288194 Raw material distributing apparatus for a furnace |
| 09/01/1981 | US4286776 Arrangement of a steel-making plant for capturing and conducting away flue gases |
| 09/01/1981 | CA1108044A1 Skid pipe covering |
| 08/25/1981 | US4285669 Roller kiln provided with a drying tunnel, particularly for ceramic or refractory materials |
| 08/20/1981 | WO1981002339A1 Atmosphere controlled electric melting |
| 08/20/1981 | WO1981002337A1 Device for loading a furnace,particularly a rotary furnace,with a combustible material,particularly waste materials |
| 08/19/1981 | EP0034109A1 Atmosphere controlled electric melting furnace |
| 08/19/1981 | EP0033972A1 Device for charging a furnace, especially a tubular rotating furnace, with material to be burned, especially with waste |
| 08/19/1981 | EP0033755A1 Installation for compounding a layer of green bricks |
| 08/18/1981 | CA1107080A1 Submerged injection of gas into liquid pyro- metallurgical bath |
| 08/06/1981 | WO1981002196A1 Process and apparatus for producing cellulated vitreous products |
| 08/04/1981 | CA1106131A1 Ceramic base and cap useful in firing ceramic shell molds |
| 07/29/1981 | EP0032755A2 Walking-beam type furnace with supporting plates |
| 07/21/1981 | US4279844 Filling mold former curing |
| 07/14/1981 | US4278240 Powder injection apparatus with sieving apparatus |
| 07/14/1981 | CA1104835A1 Method of and electric furnace for processing nonferrous molten slags |
| 07/07/1981 | US4277235 Process of producing cool agglomerated solids |
| 06/30/1981 | US4275771 Interlocking truncated triangular insulator |
| 06/23/1981 | US4274825 Process and apparatus for producing cellulated vitreous refractory material in prescribed shapes and products therefrom |
| 06/23/1981 | US4274785 Method and apparatus for charging anode scraps to a converter furnace |
| 06/23/1981 | US4274622 Device for separating slag from molten bath |
| 06/17/1981 | EP0030501A1 Porous refractory element and its manufacturing method |
| 06/17/1981 | EP0030293A1 Method of achieving uniform shrinkage in a laminated planar green ceramic substrate during sintering and apparatus therefor |
| 06/16/1981 | US4273493 Rotary furnace volumetric feeder with sealed chute |
| 06/16/1981 | US4273315 Slide closure for the tapping channel of a molten metal container |
| 06/02/1981 | CA1102119A1 Phosphorus furnace improvements |
| 05/28/1981 | WO1981001451A1 Interlocking truncated triangular insulator |
| 05/27/1981 | EP0029340A2 Interlocking truncated triangular insulator and insulated pipe |
| 05/26/1981 | US4269399 Metallurgical furnace |
| 05/19/1981 | CA1101476A1 Electric furnace station noise and smoke pollution control system |
| 05/14/1981 | WO1981001319A1 Truncated triangular insulator |
| 05/13/1981 | EP0028569A1 Process for agitating a molten metal by injection of gases |
| 05/13/1981 | EP0028523A1 Insulated skidrail |
| 05/12/1981 | US4266931 Apparatus and method of heating particulate material |
| 05/05/1981 | US4265379 Closure element of a slide closure for use in liquid melt containers |
| 04/28/1981 | US4264351 Glass melting furnace |
| 04/28/1981 | US4264057 Process and device for increasing the useful life of gas scavenging lances with porous graphite flush heads |
| 04/21/1981 | US4263469 Roller cradle of an inherently stable furnace |
| 04/21/1981 | US4263035 Polyimide deadplate for making glassware |
| 04/14/1981 | US4261554 Tap-hole closing arrangement of a metallurgical vessel |
| 04/08/1981 | EP0026255A1 Device for setting a layer or a partial layer of green moulded bricks |
| 03/31/1981 | US4259062 Apparatus for cooling of cement clinker or the like |
| 03/31/1981 | US4259061 Flat setter plate of molybdenum, tantalum, tungsten, or alloys thereof, with coating of ceramic |
| 03/24/1981 | US4257990 Refractory materials |
| 03/19/1981 | WO1981000759A1 Truncated triangular skid pipe |
| 03/18/1981 | EP0025357A1 Truncated triangular skid pipe member |
| 03/17/1981 | US4256454 Lifting plate furnace |
| 03/17/1981 | US4256453 Calciner screw construction |
| 03/11/1981 | EP0024834A1 Method for making a hearth of an electric furnace by vibratory compaction of particulate material |
| 03/10/1981 | US4255128 Container for baking carbon products |
| 03/10/1981 | US4255127 Skid rail insulation member and method of installing same |
| 03/10/1981 | CA1097038A1 Method of and apparatus for firing bodies of silica- or alumina-containing granules |
| 03/03/1981 | US4253826 Truncated triangular skid pipe |
| 03/03/1981 | US4253644 Fluid closure for and method of preventing flow through an opening in a fluid and particulate confining and conveying structure |
| 02/24/1981 | US4252494 Apparatus for supporting a conditioning tool within a furnace |
| 02/24/1981 | CA1096430A1 Continuous charging apparatus |
| 02/18/1981 | EP0024037A1 A base for a kiln car |
| 02/17/1981 | US4251271 Submerged injection of gas into liquid-pyrometallurgical bath |
| 02/10/1981 | US4249895 Kiln |
| 02/10/1981 | US4249719 Tuyere for the injection of reaction gas |
| 01/27/1981 | US4247734 Flexible thermocouple for vacuum electric furnaces |
| 01/20/1981 | US4245983 Screw conveyor for feeding lime sludge or cement to a lime and cement kiln, respectively |
| 01/20/1981 | US4245943 Unloading apparatus for vacuum electric furnaces |
| 01/20/1981 | US4245824 Chute for charging vessels |
| 01/13/1981 | US4244562 Powder injection apparatus for injection of powder into molten metal |
| 01/07/1981 | EP0021760A1 Reheat furnace skid and method of installation |
| 01/06/1981 | US4243385 End block |
| 01/06/1981 | US4242782 Ceramic conveyor rolls with metal end caps frictionally fixed thereto |
| 12/16/1980 | US4239485 Taped products processor |
| 12/16/1980 | US4239442 Apparatus for maneuvering a conditioning tool within a furnace |
| 12/16/1980 | US4239441 Support for tool handling boom |
| 12/09/1980 | CA1091031A1 Device and method for suppressing active slag |
| 11/26/1980 | EP0019184A1 Tunnel kiln truck |
| 11/26/1980 | EP0019077A1 Roller for the conveyance of products in kilns, particularly in the ceramic tile industry |
| 11/25/1980 | CA1090144A1 Stirring molten metal |
| 11/18/1980 | US4234336 Method of charging a crucible |
| 11/18/1980 | US4234283 Scrap metal fed system for a closed rotary kiln or heating oven |