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15 条记录 (耗时 0.009 秒)

    Foundry mold-making apparatus
    3.
    发明授权
    Foundry mold-making apparatus 失效
    FOUNDRY模具制作

    公开(公告)号：US3575232A

    公开(公告)日：1971-04-20

    申请号：US3575232D

    申请日：1969-04-29

    申请人： SPO INC

    发明人： YOUNG LESTER C

    IPC分类号： B22C15/10 ,  B22C15/02

    CPC分类号： B22C15/10

    摘要： Jolting apparatus for compacting sand in a foundry mold, wherein a fluid motor is utilized to rapidly reciprocate a rapper member to impart impact blows to a table supporting the mold pattern.

    Foundry squeeze mechanism
    5.
    发明授权
    Foundry squeeze mechanism 失效
    FOUNDRY SQUEEZE机制

    公开(公告)号：US3586093A

    公开(公告)日：1971-06-22

    申请号：US3586093D

    申请日：1968-09-19

    申请人： SPO INC

    发明人： YOUNG LESTER C

    IPC分类号： B22C15/02 ,  B22C15/12 ,  B22C15/08

    CPC分类号： B22C15/12

    摘要： A foundry squeeze mechanism which includes a head having a plurality of cavities within which are positioned sleeve members. Rod members are positioned in the sleeve members and are normally held in a fixed position by an interference fit between the sleeve and rod members. One end of the rod members have feet for engaging sand in a foundry flask. Fluid passage means provide for the introduction of fluid pressure between the rod members and the sleeve members at the area of the interference fit and when so introduced the sleeve members are forced outwardly releasing the interference fits. Fluid pressure or other means on the other end of the rod members causes them to be extended. Seal means are provided on each side of the area of the interference fits and stop members are provided on the rod members to limit their extended movement.