| 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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| 07/17/1991 | CN2080877U Mixer for mould covering sand |
| 06/27/1991 | WO1991008848A1 Device for regeneration of moulding sand |
| 06/16/1991 | CA2031820A1 Device for preparing bulk material with a dust removal arrangement |
| 06/07/1991 | CA2031619A1 Device for the batch-wide preparation of loose material |
| 06/05/1991 | CN2078203U Heat shock regeneration machine |
| 05/29/1991 | WO1991008068A1 A method for recovering spent foundry sand by roasting |
| 05/29/1991 | CA2069749A1 Method for recovering spent foundry sand by roasting |
| 05/28/1991 | US5019196 Sand muller bowl liner |
| 05/21/1991 | US5016827 Removing of clinging mold casting sand |
| 03/06/1991 | EP0415539A1 Apparatus for heat treating contaminated particulate material |
| 03/06/1991 | CN1049620A Plant and method for reconditioning green foundry sand |
| 02/27/1991 | EP0414388A2 Method for reconditioning green foundry sand |
| 02/24/1991 | CA2021419A1 Plant and method for reconditioning green foundry sand |
| 01/30/1991 | CN1011386B Detecting and controlling apparatus for sand quality |
| 01/15/1991 | US4984620 Apparatus for making molds for making metal castings |
| 01/01/1991 | US4981581 Dust collection hood for sand reclaimer, cooling, and blending rotary drum |
| 12/18/1990 | US4978076 Method for separating hazardous substances in waste foundry sands |
| 11/29/1990 | DE3916700A1 Three section vibrating conveyor drum processes for old casting sand - by adding water or binding agent or both in 1st section, cooling air in 2nd and opt. water in 3rd |
| 11/20/1990 | US4971135 Lost foam casting apparatus |
| 11/15/1990 | DE3915231A1 Final moisture content control for used foundry sand - uses sand cooler and water sprays controlled w.r.t. input temp. in cooler and reference inputs pre-determined |
| 11/08/1990 | DE4012158A1 Fluidised bed for thermal regeneration of used foundry sand - has synthetic resin binder removed by heat and uses regenerated sand heat to warm used sand entering the bed |
| 10/10/1990 | CN2063449U Planetary rotor sand mixer |
| 10/04/1990 | DE3909721A1 Fines and superfines separator for use in the regeneration of used foundry sand |
| 10/04/1990 | DE3909535A1 Apparatus for cleaning used foundry sand |
| 10/02/1990 | US4960162 Delumping, washing, slurrying, drying |
| 09/26/1990 | CN1009712B Apparatus for cooling and stripping objects cast in sand moulds |
| 09/05/1990 | CN2061494U Sand drying or cooling machine for static boiling bed |
| 08/28/1990 | US4952246 Drying, screening, roasting, cooling, mixing with acidic aqueous solution to remove residual clays |
| 08/01/1990 | CN1008981B Apparatus for cleaning surface of granule |
| 08/01/1990 | CN1008980B Casting sand recycling device |
| 07/17/1990 | US4941822 Apparatus for heat treating contaminated particulate material |
| 06/12/1990 | US4933073 Drum for separating castings and molding sand or the like |
| 05/22/1990 | CA1269221A1 Dual sand reclaimer |
| 04/11/1990 | CN2055754U Siliceous sand shaping unit |
| 04/10/1990 | US4915160 Apparatus for and a method of producing moulding sand for moulds |
| 04/10/1990 | US4914922 Method of temperature treating granular material |
| 03/29/1990 | DE3903604C1 Process for regenerating moulding sand |
| 03/14/1990 | EP0358120A2 Mixing plant for granulated products especially core sand |
| 03/06/1990 | US4906356 Material classifying apparatus |
| 02/28/1990 | CN2053550U Centrifugal vortex sand reclaimer |
| 02/28/1990 | CN1039982A Control method for moulding sand performance and its appliance |
| 02/08/1990 | DE3825361A1 Method and installation for regenerating mixtures of used foundry sand |
| 11/29/1989 | EP0343272A1 Method of and installation for regeneration of returned sand of foundry |
| 10/04/1989 | CN1035969A Apparatus for cooling and stripping objects cast in sand moulds |
| 09/06/1989 | CN2043898U Inner rotor for cylinder crushing sand sieving machine |
| 09/06/1989 | CN1005094B Sand mixer with loam board |
| 08/31/1989 | DE3815877C1 A process for separating off inorganic binder systems in the regeneration of used foundry sands |
| 08/09/1989 | EP0326876A2 An apparatus for cooling and stripping objects cast in sand moulds |
| 08/08/1989 | US4854369 Apparatus for surrounding a foam pattern cluster with sand |
| 08/02/1989 | CN2041984U Moistening and cooling device with several=stage sand screen |
| 06/27/1989 | CA1256266A1 Method of reclaiming green sand |
| 06/07/1989 | CN1033248A Scraping sand mixing machine |
| 05/17/1989 | EP0316166A2 Apparatus for and a method of producing moulding sand for moulds |
| 05/10/1989 | CN2037274U Forming gas rotary sand-sucking device |
| 05/09/1989 | US4828461 Apparatus for metering flowable materials in sand core making machines |
| 05/03/1989 | CN2036877U Rotary feeding magazine |
| 04/26/1989 | CN2036460U Pneumatic charging quantitave mechanism for muller |
| 04/18/1989 | US4821654 Regeneration of bulk materials |
| 04/04/1989 | US4818112 Process for mixing foundry molding materials |
| 03/15/1989 | CN2034093U Safety scratch board for various type muller |
| 03/07/1989 | US4809883 Sand dispensing assembly |
| 01/18/1989 | CN1030374A Casting sand recycling device |
| 01/17/1989 | US4798471 Apparatus for making molding sand |
| 12/28/1988 | CN86210963U Intermittent horizontal jarring sand-mixer |
| 12/22/1988 | DE3719774A1 Process and appliance for working up foundry waste sands |
| 12/14/1988 | EP0294801A2 Method and device for separating materials according to density |
| 12/08/1988 | DE3717221A1 Apparatus for the pattern-dependent introduction of moulding sand into a sand-metering appliance |
| 11/16/1988 | CN86208374U Airflow cross-blow type ejector for sand reclaiming machine |
| 11/09/1988 | CN87103119A Appartus for recovery of molding sand |
| 10/25/1988 | US4780665 Apparatus and method for controlling sand moisture |
| 08/03/1988 | CN87212730U Ball-float type pneumatic water feeder |
| 08/02/1988 | CA1239790A1 Sand reclamation system with thermal pipe reclaimer apparatus |
| 07/26/1988 | CA1239538A1 Apparatus with heat exchange means for treating solid, granular and aggregate materials |
| 07/21/1988 | DE3639634A1 Method and apparatus for the regeneration of foundry sand |
| 07/06/1988 | CN87212761U New type rotor sand mixer |
| 06/30/1988 | DE3743667A1 Sandfuellvorrichtung fuer formmaschinen Sandfuellvorrichtung for molding machines |
| 06/30/1988 | DE3642917A1 Transfer of the heat from thermally treated foundry sand to the used sand to be regenerated |
| 06/30/1988 | DE3642916A1 Regeneration of used sand |
| 06/07/1988 | CA1237708A1 Apparatus for grinding, milling, crushing, scrubbing, sizing and/or classifying material |
| 05/04/1988 | EP0265707A2 Method of and device for thermo-mechanical regeneration of bulk goods especially foundry returned sand |
| 04/27/1988 | EP0264597A2 Dosing device for bonding materials |
| 04/21/1988 | DE3735113A1 Fluidised-bed furnace for regenerating used foundry sands of varying compositions |
| 04/19/1988 | US4738615 Thermal reclamation of industrial sand |
| 04/06/1988 | EP0262875A2 Apparatus and method for controlling sand moisture |
| 03/23/1988 | CN87211712U Regenerating machine for waste sand |
| 03/23/1988 | CN87103452A Apparatus for cleaning surface of granule |
| 03/15/1988 | CA1233964A1 Method of reclaiming sand used in evaporative casting process |
| 03/02/1988 | EP0257446A2 Process and apparatus for wet-regenerating used foundry sand |
| 02/16/1988 | CA1232738A1 Sand reclamation system embodying a combination thermal reclaimer and sand-to-sand heat exchanger apparatus |
| 02/10/1988 | EP0181348B1 Sand reclamation system embodying a combination thermal reclaimer and sand-to-sand heat exchanger apparatus |
| 01/07/1988 | EP0151601B1 Apparatus with heat exchange means for treating solid, granular and aggregate materials |
| 12/01/1987 | US4709862 Attrition, cooling, batch processing; free-flowing |
| 11/25/1987 | EP0246394A2 Device for mixing sand for foundry moulds or cores |
| 10/20/1987 | US4700766 Process and apparatus for reclaiming foundry scrap sands |
| 08/11/1987 | US4685973 Agitation and settling |
| 07/21/1987 | US4681267 Heating to embrittle binder, crushing, separation |
| 06/23/1987 | US4674691 Cast iron/ |
| 06/09/1987 | US4671867 Method and means for treating foundry sands and the like |
| 05/21/1987 | DE3540850A1 Apparatus for mixing materials, especially foundry melt compositions |
| 05/20/1987 | EP0222043A1 Dosing and mixing equipment |