发明名称 Method of molding free dried pulp display tray
摘要 A method of molding a free dried pulp display tray including the formation of a bottom surface with an offset marginal portion extending therearound and along side and end wall portions of the tray to surroundingly frame the general expanse of the bottom which lies in a plane offset from that of the marginal portion to thereby minimize warpage and insure bottom flatness. The method includes the removal of formed tray from its form mold members while in wet condition and placing it on a drying surface and free drying said tray. The side or end walls of the tray also may be formed with offset rail portions which stabilize these walls and further insure a more perfect flat bottom and uniformity of shape.
申请公布号 US3929564(A) 申请公布日期 1975.12.30
申请号 US19730353065 申请日期 1973.04.20
申请人 DIAMOND INTERNATIONAL CORPORATION 发明人 REIFERS, RICHARD F.
分类号 B65D1/34;D21J7/00;(IPC1-7):D21J3/00 主分类号 B65D1/34
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