| Patents for B22C 5 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose (2,031) |
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| 11/23/1995 | DE4434115C1 Pneumatic-mechanical cleaning of old foundry sand |
| 10/25/1995 | CN2210734Y Moveable loose-material cooling device |
| 10/04/1995 | CN1109394A Method and apparatus for recycling sand |
| 09/27/1995 | CN1108979A Systems and processes for pyrolyzing contaminants on foundry sand and combusting the resulting gas |
| 08/24/1995 | DE4405270A1 Regeneration of old foundry sand contg. weakly magnetic substances |
| 08/23/1995 | EP0612276A4 Heat treatment of metal castings and in-furnace sand reclamation. |
| 08/10/1995 | DE4403875A1 Pressure conveyor for delivering sand, esp. foundry sand |
| 08/10/1995 | DE4403867A1 Regeneration of old foundry sand with magnetic constituents |
| 08/09/1995 | EP0666126A1 Method and apparatus for recycling sand |
| 08/08/1995 | US5439044 Method of regenerating foundry sand |
| 08/03/1995 | DE4402397A1 Appts. for rejuvenating used foundry sand |
| 08/02/1995 | CN1105917A Device for cleaning adhering material off of sand |
| 07/20/1995 | DE4427586C1 Appts. for treating used foundry sand |
| 07/18/1995 | US5433389 Method and apparatus for reclaiming foundry sand |
| 07/12/1995 | CN2203199Y Horizontal countercurrent used sand reclaiming machine |
| 06/22/1995 | DE4443505A1 Regeneration of resin bonded foundry sand |
| 06/21/1995 | EP0658131A1 Reclamation of ester-cured phenolic resin bonded foundry sands. |
| 06/14/1995 | DE4442974A1 Used foundry sand regeneration process |
| 06/14/1995 | CN2200501Y Multi-layer long-arm rotary-stick type mulling machine |
| 06/07/1995 | EP0656236A1 Systems and processes for pyrolyzing contaminants on foundry sand and combustion of the resulting gas |
| 06/06/1995 | US5421462 Arrangement for dry reconditioning of used foundry sands |
| 05/31/1995 | EP0572460B1 Fluidized bed and method of processing material |
| 05/17/1995 | CN2197149Y Gas or oil circulating heater |
| 04/26/1995 | CN2195394Y Sand roller mill with heating device |
| 04/19/1995 | EP0482161B1 Thermal reclamation method |
| 04/19/1995 | CN2194775Y Automatic constant-weight water feeder for sand mixer |
| 04/12/1995 | EP0647489A1 Device for cleaning adhering material off sand |
| 04/11/1995 | US5404655 Method and apparatus for regulating the sand discharge during the thermal regeneration of used foundry sand in fluidized bed kilns |
| 02/28/1995 | US5393138 Apparatus for mixing foundry mould substances |
| 02/22/1995 | CN2189993Y Quantitative water supplying unit of sand mixer |
| 02/22/1995 | CN1027683C Technique for prepn. of film laying sand |
| 02/16/1995 | WO1995004600A1 Process for washing granular and/or particulate materials |
| 02/07/1995 | US5386868 Apparatus and method of cooling refractory sand based on dew point temperature |
| 02/01/1995 | CN2188438Y Automatic testing equipment for frosting performance |
| 01/25/1995 | CN1097662A Heat treatment of metal castings and in-furnace sand reclamation |
| 01/18/1995 | EP0634238A1 Apparatus for cooling moulding sand |
| 01/18/1995 | CN2187505Y Swinging plate sand mixer |
| 01/17/1995 | US5382002 Apparatus for heat treating a particulate material |
| 01/11/1995 | EP0632753A1 A method for making moulds |
| 01/05/1995 | DE4321297A1 Process for the wet regeneration of bulk goods contaminated with impurities and pollutants |
| 01/05/1995 | DE4321296A1 Process and plant for the wet regeneration of granular bulk goods contaminated with impurities and pollutants |
| 01/05/1995 | DE4321123A1 Process and apparatus for treating organically polluted, finely divided bulk materials |
| 12/14/1994 | EP0628367A2 Method of reclaiming used foundry sand |
| 12/13/1994 | US5372424 Screw mixer, particulary for foundry molds |
| 12/07/1994 | EP0553243B1 Fluidized bed apparatus and method using same |
| 11/30/1994 | CN2183839Y Inclined fluid-bed heater |
| 11/24/1994 | WO1994026439A1 A method of improving the properties of reclaimed sand used for the production of foundry moulds and cores |
| 11/24/1994 | DE4316610A1 Ecologically sound mechanical/pneumatic sand regeneration in batchwise operation |
| 11/23/1994 | EP0625385A1 Process and apparatus for thermal treatment of contaminated particles |
| 11/16/1994 | CN1026560C Plant and method for reconditioning green foundry sand |
| 11/15/1994 | US5363779 Systems and processes for pyrolyzing contaminants on foundry sand and combusting the resulting gas |
| 10/13/1994 | WO1994022616A1 Method and device for the mechanical regeneration of used sand |
| 10/11/1994 | US5354038 Heat treatment of metal castings and in-furnace sand reclamation |
| 09/07/1994 | EP0613741A1 Process and apparatus for treating bentonite-bonded used foundry sand |
| 09/01/1994 | DE4306007A1 Method for regenerating water-glass-bonded used foundry sands |
| 08/31/1994 | EP0612276A1 Heat treatment of metal castings and in-furnace sand reclamation |
| 08/11/1994 | DE4301646A1 Method and apparatus for the mechanical regeneration of foundry sand |
| 07/27/1994 | EP0607650A2 A rotary sand reclaiming drum |
| 07/27/1994 | CN1089892A Sand reclaiming drum with media recycler |
| 07/26/1994 | US5332139 Fluidized bed apparatus and method using same |
| 07/19/1994 | US5330265 Apparatus and apparatus for mixing and cooling molding sand |
| 05/18/1994 | EP0597335A1 Process and apparatus for renerating used foundry sand |
| 04/20/1994 | CN2162316Y Direct-test no-contact water apparatus |
| 04/20/1994 | CN2162315Y Overlay sand mixing machine with cooling device |
| 04/20/1994 | CN2162314Y Moulding sand heater |
| 04/20/1994 | CA2080858A1 Radiation emitting heating elements and structure |
| 04/14/1994 | WO1994007627A1 Mechanical processing installation for regeneration of coated particles of a gangue |
| 04/12/1994 | US5302020 Planetary mixing apparatus |
| 04/05/1994 | US5299618 Method for recovering foundry sand by roasting |
| 03/22/1994 | US5295821 Foundry sand thermal reclamation system and method |
| 03/17/1994 | WO1994005448A1 Reclamation of ester-cured phenolic resin bonded foundry sands |
| 03/16/1994 | CN1083753A Method and apparatus for recovery of moulding sand |
| 03/16/1994 | CN1083752A Compound technology for filming sand |
| 03/08/1994 | US5291935 Process for the mechanical cleaning of foundry used sand |
| 03/03/1994 | WO1994004297A1 Heat treatment of metal castings and in-furnace sand reclamation |
| 03/02/1994 | CN1082941A Apparatus for mixing and treating bulk material |
| 03/01/1994 | US5289920 Process for thermically recovering old sands obtained in casting plants and for treating the dusts obtained during circulation of the sand |
| 02/01/1994 | CA1326649C Material classifying apparatus |
| 01/27/1994 | DE4224493A1 Regenerating process and equipment for foundry sand |
| 01/26/1994 | EP0580084A2 Apparatus for an method of reclaiming foundry sand |
| 01/18/1994 | US5279741 Process for regenerating used foundry sand |
| 01/13/1994 | DE4221093C1 Casting sand recovery - detaches sand from the casting in two cleaning stages to give separate types bonded only with clay and only with resin |
| 01/05/1994 | EP0576922A1 Process and apparatus for regenerating foundry sand |
| 01/02/1994 | CA2098980A1 Method and apparatus for reclaiming foundry sand |
| 12/21/1993 | US5271450 Thermal reclamation method |
| 12/15/1993 | CN2149261Y Device for distributing sands with a ratio |
| 12/07/1993 | US5268195 Method and apparatus for producing finely pulverized sand particles for use in the production of casting molds and for coating with the finely pulverized sand particles models for shaped castings |
| 12/07/1993 | US5267603 Sand reclaiming drum with media recycler |
| 11/24/1993 | CN2147054Y All-automatic plow blade device for muller |
| 11/18/1993 | EP0569945A1 Process and apparatus for controlling the drag-out of sand by thermal regeneration of foundry sand in a fluid bed separator |
| 11/09/1993 | US5259434 Method of regenerating used foundry sands |
| 11/02/1993 | CA2067865A1 Gravity flow thermal process for reclaiming foundry sand |
| 10/20/1993 | EP0565894A1 Apparatus for mixing and preparing pourable materials |
| 10/14/1993 | WO1993019870A1 A method for making moulds |
| 10/14/1993 | DE4212097A1 Verfahren und Vorrichtung zum Regenerieren von Giessereisand Method and device for regenerating foundry sand |
| 10/12/1993 | US5251684 Method for controlling the oxidation and calcination of waste foundry sands |
| 10/11/1993 | WO1993020964A1 Foundry sand regenerating process and device |
| 10/11/1993 | CA2117787A1 Foundry sand regenerating process and device |
| 09/22/1993 | EP0561683A1 Screw-type kneading machine, in particular for foundry moulds |
| 09/08/1993 | EP0502906B1 A method for recovering spent foundry sand by roasting |