| 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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| 08/24/1993 | US5238976 Aqueous aminosilane compound |
| 08/10/1993 | US5233765 Process for the regeneration of used foundry sands |
| 08/05/1993 | WO1993015360A1 Incineration apparatus |
| 06/23/1993 | EP0547851A1 Fluidized bed apparatus |
| 06/15/1993 | US5219123 Process for the selective reclamation treatment of used foundry sand |
| 06/10/1993 | WO1993010926A1 Method for controlling the oxidation and calcination of waste foundry sands |
| 06/08/1993 | US5217578 Dry thermal processor |
| 06/08/1993 | US5217170 Drawing off impurities in fluidized air stream |
| 05/27/1993 | DE4138263A1 Treating a sand mould - introducing oxygen@ into the mould box after an initial solidification period of the casting |
| 05/19/1993 | CN2133384Y Hot method resin seal membrane sand producing equipment |
| 05/18/1993 | US5211215 Process for neutralizing regenerated sand |
| 04/22/1993 | DE4224438A1 Apparatus for regeneration of foundry sand - with individual units coupled together according to sand type etc., for mechanical, thermal, chemical and wet regeneration processes |
| 04/13/1993 | US5202080 Fluidized bed apparatus |
| 03/11/1993 | DE4129863A1 Bentonite bound foundry moulding sand conditioning process - by heat treatment of precleaned sand for high quality sand useful for core prodn. |
| 03/09/1993 | US5191844 Process and apparatus for the treatment of dust or like material which is capable of trickle flow |
| 03/04/1993 | WO1993003872A1 Device for the dry regeneration of used foundry sand |
| 03/03/1993 | CN1069433A Process and apparatus for preparation of bulk materials |
| 03/02/1993 | US5189813 Fluidized bed and method of processing material |
| 02/24/1993 | EP0528070A1 Process and device for treating bulk material |
| 02/16/1993 | US5186538 Core and molding sand preparation apparatus with adjustable mixing blade |
| 02/16/1993 | CA2054410A1 Process and apparatus for the preparation of bulk materials |
| 01/20/1993 | EP0524120A1 Process and apparatus for continuously recycling resin-bonded foundry sand |
| 01/07/1993 | EP0521201A1 Process for reclaiming used foundry sand |
| 12/23/1992 | EP0519324A1 Apparatus for grinding sand |
| 12/22/1992 | US5172748 Device for the batch-wise preparation of loose material |
| 12/16/1992 | EP0518089A1 Process for the production of chemically degradable ceramic moulds |
| 12/10/1992 | DE4118365A1 Recycling of used foundry sand - by treating in a microwave furnace to volatilise, decompose or oxidise carbon@ or organic particles without effectively heating the sand |
| 12/03/1992 | DE4117344A1 Floor and sand cleaning - using hydrogen oxidn. torch with excess hydrogen@ to convert organic matter and polymer to harmless molecules |
| 12/01/1992 | US5167270 Method for the treatment of foundry sand and/or core sand |
| 11/24/1992 | US5165888 Gravity flow thermal process for reclaiming foundry sand |
| 11/17/1992 | US5163562 Process for reclaiming bentonite and carbon particles from used foundry sand |
| 11/17/1992 | US5163496 Process for treating old foundry sand for reuse in place of core sand |
| 11/11/1992 | EP0512236A1 Process for mechanical reclaiming of used foundry sand |
| 10/28/1992 | CN2119978U Roller type sand mixing machine |
| 10/21/1992 | CN1065416A Method and apparatus for sifting sand or like bulk material |
| 10/14/1992 | CN1065225A Method of regenerating feed material of coated grains, in particular used foundy sands |
| 10/07/1992 | CN1065030A Forced press-kneading type sand reclamation installation |
| 09/30/1992 | EP0505722A1 Process for reclaiming bulk material containing coated grains, in particular used foundry sand |
| 09/23/1992 | EP0504747A2 Method and device for sifting sand or similar free-flowing material |
| 09/23/1992 | EP0504502A1 Process and apparatus for the treatment of waste containing noxious substances |
| 09/21/1992 | CA2056194A1 Process and device for cleaning waste materials containing harmful substances |
| 09/16/1992 | EP0502906A1 A method for recovering spent foundry sand by roasting. |
| 09/09/1992 | CN2115163U Oscillating screen cooling elevator |
| 08/23/1992 | WO1992015181A1 Fluidized bed and method of processing material |
| 08/23/1992 | CA2104599A1 Fluidized bed and method of processing material |
| 08/19/1992 | CN2113121U Shaking breaking ball grinding regenerative machine |
| 08/12/1992 | CN1063541A Method and apparatus for processing dust or like bulk materials |
| 07/29/1992 | EP0496250A2 Process and device for the treatment of dust or similar bulk material |
| 07/29/1992 | CN2111153U Automatic adjusting strike-off board for muller |
| 07/29/1992 | CN2111152U Mixer pot |
| 06/03/1992 | EP0488068A2 Process and device for manufacturing foundry molds |
| 05/26/1992 | US5115985 Impact ansd shearing stress to separate surface layers, grinding and dust removal |
| 05/24/1992 | CA2056070A1 Process for separating bentonite and carbon carrier particles from the dust obtained mechanically during used sand reclamation \ |
| 05/12/1992 | CA1300339C Apparatus and method for controlling sand moisture |
| 05/06/1992 | EP0483933A2 Process and apparatus for refining bulk material |
| 05/05/1992 | US5110288 Gravity flow thermal process for reclaiming foundry sand |
| 05/03/1992 | CA2053184A1 Process and device for cleaning of bulk goods |
| 04/29/1992 | EP0482393A1 Air-jet impact crusher for surface cleaning of granular material, especially thermally treated used foundry sand |
| 04/29/1992 | EP0482161A1 Thermal reclamation method. |
| 04/17/1992 | WO1992006781A1 Fluidized bed apparatus and method using same |
| 04/16/1992 | DE4032516A1 Separating magnetic and non-magnetic sand mixts. - using fluidised bed with magnetic sorting drum |
| 04/14/1992 | US5104049 Sand muller bowl liner |
| 04/14/1992 | US5103894 Process for the treatment of clay-bonded used casting sand |
| 04/08/1992 | EP0478881A1 Process and device for processing fragmentary parts and/or flowable materials |
| 04/08/1992 | CN1060048A Method and equipment for reprocessing fragment type fractions and/or free-flowing materials |
| 03/25/1992 | EP0476342A1 Process for regenerating used foundry sand |
| 03/25/1992 | CN1059678A Horizontal continuous reclaiming machine for waste sand |
| 03/25/1992 | CA2040491A1 Method and equipment for reprocessing fragment-type fractions and/or free-flowing materials |
| 03/18/1992 | EP0475548A1 Process for precoating granular mineral materials with synthetic resin |
| 03/10/1992 | CA1296863C Casting metal and reclaiming foundry sand |
| 02/26/1992 | EP0472394A1 Method for the preparation of foundry sand compositions |
| 02/21/1992 | CA2048773A1 Method for the preparation of foundry sand compositions |
| 01/16/1992 | DE4022339A1 Surface cleaning of fine-grained material esp. used foundry sand - passes sand down inclined pipe into which are is blown to remove crust etc. |
| 01/15/1992 | EP0465778A2 Process for reclaiming used foundry sand |
| 01/14/1992 | CA1294253C Sand dispensing assembly |
| 01/07/1992 | US5078201 Casting core fabricating apparatus |
| 01/01/1992 | CN2091731U Horizontal drum for stirring and cooling used sand |
| 11/28/1991 | WO1991017848A1 Thermal reclamation method and apparatus |
| 11/28/1991 | DE4112466A1 Mould sand filling control - monitors level of sand in filled mould to adjust volume of sand fed to the next mould |
| 11/28/1991 | DE4016605A1 Foundry sand regeneration process - using rapid cyclone heating and shock cooling |
| 11/13/1991 | EP0456027A1 Process for thermal regeneration of returned foundry sand and for treating dust formed during its circulation |
| 10/24/1991 | DE4111643A1 Continuous regeneration plant for resin-bound foundry sands - comprises thermal regeneration stage and counterflow cascade oven allowing continuous sand recovery with min. energy consumption |
| 10/22/1991 | US5059247 Method for the preparation of foundry sand compositions |
| 10/09/1991 | CN2086176U Sand roller mill roller brush |
| 10/08/1991 | US5054538 Automatic foundry plant |
| 10/03/1991 | WO1991014524A1 Process for regenerating used foundry sand |
| 10/02/1991 | DE4010377A1 Moulding sand recovery improving quality of sand - using thermal treatment and mechanical action to recycle sand with reduced energy consumption |
| 10/02/1991 | CN2085687U Centrifugal self-circular sand reclaiming machine |
| 09/26/1991 | DE4109167A1 Processing used foundry sand for re-use - by parallel wet-processing to remove inorganic binders heating to remove organic binders, then mixing two separate prods. |
| 09/26/1991 | DE4109136A1 Processing noxious waste in fluidised bed - heated from above by independently controllable burner |
| 09/18/1991 | EP0446402A1 Method for repreparation of foundry sand |
| 09/11/1991 | EP0445436A2 Apparatus for mixing foundry moulding materials |
| 09/09/1991 | CA2037737A1 Process for the reclamation treatment in batch quantities of predominantly clay-bounded used casting sand |
| 09/09/1991 | CA2037736A1 Process for the regeneration treatment of predominantly clay-bonded casting old sand |
| 09/03/1991 | US5045090 Process and device for reclaiming used foundry sands |
| 08/28/1991 | CN1054021A Process for regeneration of foundry sand |
| 08/15/1991 | CA2022769A1 Method of reconditioning foundry sand |
| 08/01/1991 | CA2034410A1 Method for the treatment of foundry sand and/or core sand |
| 07/25/1991 | DE4100438C1 Filling foundry mould with sand - supplying from bunker into screening arrangement, and conveying finer fraction to pattern and coarser fraction to fill mould |
| 07/23/1991 | US5034035 Device for preparing bulk material with a dust removal arrangement |