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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||264/128 ; 264/261 ; 264/3281 ; 264/DIG ; 6|
|발명자 / 주소||
|출원인 / 주소||
|인용정보||피인용 횟수 : 8 인용 특허 : 0|
A process and apparatus for the internal gating of molds used to make a shaped article of aggregate filler infiltrated with a curable binder, including preparing a mold having a cavity and having gating tubes extending through the mold cavity and spaced from its surfaces, and the gating tubes having walls with multiple openings therethrough which are located inside the mold cavity, the cavity being dry-packed outside of the tubes with aggregate filler and the interstitial spaces therebetween being pumped full of liquid binder to form a matrix, the binder...
A process for the internal gating of molds used to prepare a shaped article comprising a composite of aggregate filler and a curable binder, the process comprising the steps of: (a) preparing a mold having multiple surfaces enclosing its cavity, and extending gating tube means into the mold through at least one of its surfaces, the tube means extending through the mold cavity spaced from its surfaces, at least one surface of the mold having breather holes, and the tube means having walls with multiple openings therethrough which are located inside the mo...