Blow molded drum

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 25/00 (2006.01) B67D 7/02 (2010.01) B65D 1/12 (2006.01) B65D 1/20 (2006.01) B65D 8/02 (2006.01)

Patent

CA 2312865

A plastic blow molded drum (24) has unique top (30) and bottom (34) structure providing protection and strength for the drum (24) and attachments. An integrally formed top structure (30) with a sufficiently deep recess (46) provides protection for drum inserts and associated closures. Additionally, the bottom structure (34) includes a sump (130) and structural member (168) formed by the pinched-off parisan during the blow molding process. The drum (24) has a top wall (44), a cylindrical side wall (26), and a bottom wall (58) defining an open interior. The protective recess (46) may suitably be formed by the chime (40) and/or further downward recessed portions (46) of the top wall (44) such that the first fitting (50), the second fitting (85), and the closure (60), including the uppermost portion of the closure (60) are all below the top edge of the chime (40).

Cette invention se rapporte à un fût en plastique moulé par soufflage (24), qui comprend une structure supérieure (30) et inférieure (34) unique, assurant protection et résistance au fût (24) et à ses pièces de fixation. Une structure supérieure formée solidaire (30) ayant un évidement suffisamment profond (46) assure protection aux pièces rapportées du fût et aux fermetures qui leur sont associées. En outre, la structure inférieure (34) comprend un puisard (130) et un élément de structure (168) formés par la striction de l'ébauche pendant l'opération de moulage par soufflage. Ce fût (24) comporte une paroi supérieure (44), une paroi latérale cylindrique (26) et une paroi inférieure (58) définissant un espace intérieur ouvert. L'évidement de protection (46) peut être formé de façon appropriée par le jable (40) et/ou par d'autres parties évidées descendantes (46) de la paroi supérieure (44), pour que le premier raccord (50), le second raccord (85) et la fermeture (60), y compris la partie supérieure de la fermeture (60), se trouvent tous au-dessous du bord supérieur du jable (40).

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