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| Number | Title | Issue Date |
| 7413602 | Production of glass powder from waste glass, and products made using the same, especially concrete A clean dry glass powder useful as a substitute for Portland cement in concrete, in paints, and for other known uses for glass powder produced conventionally can be produced from unsorted post-consumer waste glass, including a subsatantial fraction of non-glass item... | 08/19/2008 |
| 7264124 | Systems and methods for sorting recyclables at a material recovery facility Systems and methods for providing a quantity of cullet having at least two colors of glass from an input stream of recyclable material and non-recyclable material. In an embodiment, the system includes a sortation station, a screening apparatus, an air classifier, a... | 09/04/2007 |
| 6783088 | Method of producing glass and of using glass in cutting materials A method of producing glass as an abrasive media for cutting materials includes the steps of providing a glass feed stock and reducing the glass feed stock in size to produce glass particles with a high angularity and low aspect ratio. The method also includes the s... | 08/31/2004 |
| 6481651 | Method and plant for disintegrating crude material in lumps into a granular material according to particle size distribution A process for the grain size reduction of a raw material in piece form, wherein: all or part of the material in piece form is subjected to a grinding operation, capable of enabling to be obtained at its output a material in grain form having a requisite g... | 11/19/2002 |
| 6471148 | Method and apparatus for crushing glass A glass smasher is provided of the type for placement of glass articles for reduction to a particle size for reduced volumetric disposal and/or recycling purposes. Recycling may include reforming into another glass product or use as an aggregate. The glas... | 10/29/2002 |
| 6446886 | Method for producing glass sands and system therefor A method for producing glass sands including the steps of crushing glass articles to convert them into fine fragments so as to form glass fragments, then agitating finely crushed glass fragments to eliminate sharp portions while at the same time forming g... | 09/10/2002 |
| 6199778 | Systems and processes for recycling glass fiber waste material into glass fiber product Systems and processes of the present invention for recycling glass fiber waste into glass fiber product include a supply of scrap glass fibers having a mean average length of less than about 5 millimeters; a crusher having at least one pair of rotatable r... | 03/13/2001 |
| 6032881 | Process to remove radioactive elements present in bulk low-grade waste A method and system for separating, collecting and isolating radioactive metallic elements from low grade, dry, solid non-metallic nuclear bulk waste that includes physically degrading the low grade waste by shredding or grinding into small pieces, config... | 03/07/2000 |
| 6032883 | Apparatus and method for comminuting glass fibers An apparatus for comminuting glass fibers is disclosed. Within a housing are a plurality of weighted members or hammers, flexibly connected to and spaced about a rotatable shaft. A drive member rotates the hammers about the shaft to define a rotation circ... | 03/07/2000 |
| 5950936 | Process and system for recycling glass A system and method for recycling a waste glass cullet includes a first screening station for separating large glass shards of approximately one inch in diameter from smaller glass shards in the cullet, a crusher to reduce the large glass shards to smalle... | 09/14/1999 |
| 5887804 | Apparatus for comminuting glass An apparatus for comminuting glass is disclosed having a housing. Within the housing are a plurality of weighted members or hammers, flexibly connected to and spaced about a rotatable shaft. A drive member rotates the shaft, causing the hammers to rotate ... | 03/30/1999 |
| 5772126 | System and process for recycling waste material produced by a glass fiberizing process The waste material processing system of the present invention includes a (1) waste material supply; (2) shredder; (3) moisture reducing device; (4) crusher having a rotatable screw auger positioned within a cavity of the crusher for crushing and conveying... | 06/30/1998 |
| 5524837 | Apparatus and method for processing glass containers The apparatus consists of a glass breaker alone or a glass granulator alone or combinations of the two machines along with a screen/sieve and cullet mover mechanism to sort or size the glass particles for further reprocessing or for use an end product of ... | 06/11/1996 |
| 5314071 | Glass sorter The invention provides a method and apparatus for purification and color sortation of waste glass, a glass beneficiation process and apparatus. The invention crushes the glass into pieces less than 3 inches in size, delables the glass, and then sorts the ... | 05/24/1994 |
| 4867384 | Method and apparatus for recovering glass from old glass Method and apparatus for recovering glass from old glass by continuously feeding the old glass onto an open, continuously running conveyor system by segregating nonglass impurities and by mechanically crushing old glass in a breaking apparatus. To facilit... | 09/19/1989 |
| 4069979 | Method and apparatus for breaking up and separating waste glass to obtain cullet A method of breaking up and separating waste glass with use of a lattice comprising a grizzly made up of parallel bars arranged at a spacing smaller than the minimum width of projection of three-dimensional extraneous matter and auxiliary parallel bars di... | 01/24/1978 |
