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公开(公告)号：US3630820A
公开(公告)日：1971-12-28
申请号：US3630820D
申请日：1969-07-25
申请人： IRBY H LEACH
发明人： LEACH IRBY H
CPC分类号： C04B16/087 , B26D1/38 , B29B7/905 , Y10S264/07 , Y10T428/249977 , Y10T428/249986 , Y10T428/254 , Y10T428/2982
摘要： Closed-cell foamed polystyrene beads are shredded to form small size, open-celled foam particles. The particles are mixed with a slurry of a granulate and a liquid whereby the slurry enters the open cells to increase the density of the particles and suspend the particles in the slurry without floating the particles to the top. After an even distribution of the particles throughout the slurry is obtained the mixture is dried to form granulate objects, such as boards, having an even distribution of foamed polystyrene particles therein to reduce the density of the object.
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公开(公告)号：US3639551A
公开(公告)日：1972-02-01
申请号：US3639551D
申请日：1969-07-24
申请人： IRBY H LEACH
发明人： LEACH IRBY H
CPC分类号： B29C44/3461 , Y10S264/09
摘要： POLYSTYRENE BEADS ARE SUBJECTED TO HEATED WATER VAPOR TO PARTIALLY EXPAND THE BEADS AND THEY ARE THEREAFTER TRANSPORTED TO A HOLDING CHAMBER. DURING TRANSPORTATION, A PARTIAL COLLAPSE OF THE PRE-EXPANDED BEADS TAKES PLACE. IN THE CHAMBER THE BEADS ARE SUBJECTED TO HEATED AIR TO STABILIZE THEIR VOLUME. FROM THE HOLDING CHAMBER THE PREEXPANDED BEADS ARE RECYCLED A PLURALITY OF TIMES UNTIL THE BEADS HAVE A DENSITY OF ABOUT 0.5 POUNDS PER CUBIC FOOT OR LESS. THE TEMPERATURE OF THE WATER IS RAISED DURING EACH SUCCESSIVE CYCLE.
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3.发明授权Method of molding aqueous settable slurries containing shredded open-cell polystyrene particles 失效模制含有切碎的开孔聚苯乙烯颗粒的含水可固化浆料的方法
公开(公告)号：US4100242A
公开(公告)日：1978-07-11
申请号：US279422
申请日：1972-08-10
申请人： Irby H. Leach
发明人： Irby H. Leach
CPC分类号： C04B16/087 , Y10S264/07 , Y10T428/2982
摘要： Closed cell foamed polystyrene beads are shredded to form small size, open-celled foam particles. The particles are mixed with a slurry of a granulate and a liquid whereby the slurry enters the open cells to increase the density of the particles. After an even distribution of the particles throughout the slurry is obtained the mixture is dried to form granulate objects, such as boards, having an even distribution of foamed polystyrene particles therein to reduce the density of the object.
摘要翻译： 闭孔泡沫聚苯乙烯珠被切碎以形成小尺寸的开孔泡沫颗粒。 将颗粒与颗粒和液体的浆料混合，由此浆料进入开孔，以增加颗粒的密度。 在获得颗粒整个浆料的均匀分布后，将混合物干燥以形成其中具有均匀分布的发泡聚苯乙烯颗粒的颗粒物体，例如板，以减小物体的密度。
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公开(公告)号：US3686068A
公开(公告)日：1972-08-22
申请号：US3686068D
申请日：1971-02-24
申请人： IRBY H LEACH
发明人： LEACH IRBY H
CPC分类号： B02C18/2216 , B02C18/148 , B02C2023/165 , Y10S521/918 , Y10S521/921 , Y10T428/2982
摘要： FOAM, SUCH AS FOAMED BEADS, ARE SHREDDED INTO IRREGULARLY SHAPED PARTICLES HAVING RANDOM AND IRREGULAR EXTERIOR SURFACES, TEARS AND RAGGED EDGES TO RUPTURE AND OPEN A SUBSTANTIAL NUMBER OF THE FOAM CELLS. THE FOAM BEADS ARE PASSED BETWEEN RELATIVELY MOVING, OPPOSING SHREDDING SURFACES INCLUDING TOOTH-LIKE SERRATIONS. OVERSIZE SHREDDED PARTICLES ARE SEPARATED ON A SCREEN FROM WHICH THEY ARE RECYCLED FOR RESHREDDING AND SIZE REDUCTION. THE APPARATUS ALSO INCLUDES MEANS FOR FEEDING THE FOAM BEADS TO THE SHREDDING SURFACES AND COLLECTING THE SHREDDED AND SCREENED PARTICLES FOR REMOVAL FROM THE APPARATUS.
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公开(公告)号：US3627211A
公开(公告)日：1971-12-14
申请号：US3627211D
申请日：1969-07-25
申请人： IRBY H LEACH
发明人： LEACH IRBY H
CPC分类号： B02C18/2216 , B02C18/148 , B02C2023/165
摘要： Foam, such as foamed beads, are shredded into irregularly shaped particles having random and irregular exterior surfaces, tears and ragged edges to rupture and open a substantial number of the foam cells. The foam beads are passed between relatively moving, opposing shredding surfaces including toothlike serrations. Oversize shredded particles are separated on a screen from which they are recycled for reshredding and size reduction. The apparatus also includes structure for feeding the foam beads to the shredding surfaces and collecting the shredded and screened particles for removal from the apparatus.
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