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    • 4. 发明公开
    • Metal lids for vacuum-sealing of packagings for foodstuff preserves
    • Metalldeckel zum Vakuum-Verschliessen vonKonservenbehältern
    • EP0723919A1
    • 1996-07-31
    • EP96830031.9
    • 1996-01-25
    • METALGRAFICA ROJEK LTDA.
    • Rojek, Arnaldo
    • B65D51/16
    • B65D51/1683
    • The present invention comprises a metal lid usually constituted by a circular panel (1), endowed with downward short turned rim or skirt (2) and provided in its inner peripherial circunference of a circular groove containing a sealing gasket (3), having a circular concave depression (4) disposed preferably in a central portion of the panel (1), wherein is formed a central hole (5), seeing that in a lateral portion or sector from this circular depressed area (4) is applied a film of high-adherence varnish, being furthermore filled up with a adherent thermoplastic and melting material-former of the seal (7), such material that penetrate in the hole (5) forming a short vertical rod (8), which does not extravasate the hole (5) and remains with its end close and at the same plane of the internal and inferior surface of the panel (1) of the lid without forcing any portion or residue of the material in the inferior part of the hole (5); seeing that, the film of high-adherence varnish (6), applied in a lateral part or sector of the circular depression (4), allows the partial retention of the seal (7) on the occasion of its lifted slightly and release of the relief hole (5), and the reapplying after the first opening of the packing.
    • 本发明包括通常由圆形面板(1)构成的金属盖,该圆形面板(1)具有向下短的边缘或裙部(2),并且在其内周边的圆形槽中设置有包含密封垫圈(3)的圆形槽, 优选地设置在面板(1)的中心部分的凹陷凹部(4),其中形成有中心孔(5),看到在该圆形凹陷区域(4)的横向部分或扇形区域中施加高的薄膜 另外用密封件(7)的粘附的热塑性材料 - 熔化材料 - 成型体填充,这种材料穿透孔(5)形成一个不会渗透孔的短垂直杆(8) 5),并且其端部保持在盖的面板(1)的内表面和下表面的相同平面上,而不会在孔(5)的下部中强制材料的任何部分或残余物; 看到,施加在圆形凹陷(4)的侧面部分或扇形部分中的高粘附性清漆(6)的薄膜允许密封件7稍稍抬起时部分地保持密封(7),并释放 释放孔(5),以及在第一次打开包装之后重新应用。