Apparatus for pressurizing hollow articles during molding
    2.
    发明授权
    Apparatus for pressurizing hollow articles during molding 失效
    用于在模具中加压中空制品的装置

    公开(公告)号:US3587133A

    公开(公告)日:1971-06-28

    申请号:US3587133D

    申请日:1968-04-10

    Applicant: VALYI EMERY I

    Inventor: VALYI EMERY I

    CPC classification number: B29C49/28 B29C49/421 B29C49/70

    Abstract: MOLDING APPARATUS INCLUDING A BLOW MOLD CONTAINING A HOLLOW BLOWN ARTICLE HAVING AN OPEN NECK PORTION AND A TRANSFER DEVICE TO BE INDEXED SUCCESSIVELY INTO REGISTRATION WITH THE BLOW MOLD. THE TRANSFER DEVICE IS BROUGHT INTO ENGAGEMENT WITH THE OPEN NECK OF THE ARTICLE. FLUID PRESSURE IS SUPPLIED THROUGH THE TRANSFER DEVICE FOR GRIPPING THE NECK OF THE ARTICLE AND TO APPLY FLUID PRESSURE TO THE INTERIOR OF THE ARTICLE. THE BLOW MOLD IS OPENED TO RELEASE THE ARTICLE AND THE DEVICE IS ADVANCED TO EXTRACT THE ARTICLE AND CARRY IT TO A DISCHARGE STATION WHILE MAINTAINING INTERNAL FLUID PRESSURE DURING THE COOLING STEP. AT THE DISCHARGE STATION THE FLUID PRESSURE IS REDUCED TO ALLOW THE TRANSFER DEVICE TO RELEASE THE ARTICLE.

Patent Agency Ranking