Screw cap closure for a drum

Details Screw cap closure for a drum Screw cap closure for a drum

1992-12-02

1994-06-21

Shoap, Allan N.

Receptacles

Closures

Removable closure guided in rotary movement

220240, 220295, 220296, 220601, 220768, 220773, 220304, B65D 4106

Patent

active

053221770

ABSTRACT:
A container (10) of the type having side walls and top and bottom ends, the top end (2) including an access hole 4 surrounded by an upstanding neck (5) adapted to receive a suitable closure, wherein the neck is integrally formed from the material of the top end. There is also provided a closure (12) comprising a cap having a top (13) and a skirt (15) extending downwardly therefrom, the skirt having an internal thread (12a) to engage the external thread of the neck, wherein the top (13a) of the cap is formed in a concave shape, the opposite surface (13b) being convex and extending downwardly towards the interior of the cap.

REFERENCES:
patent: Re1593 (1863-12-01), Spratt
patent: 104193 (1870-06-01), Perkins
patent: 483575 (1892-10-01), McNabb
patent: 1915300 (1933-06-01), Draper
patent: 1980995 (1934-11-01), Holloway
patent: 2197609 (1940-04-01), Cornell, Jr.
patent: 2770382 (1956-11-01), Ritter
patent: 2818204 (1957-12-01), Henchert et al.
patent: 3289891 (1966-12-01), Frankenberg
patent: 3297195 (1967-01-01), Hidding
patent: 3474843 (1969-10-01), Maris
patent: 4313545 (1982-02-01), Maeda
"Certificate of Packaging Performance", Ser. No. 1758, Appln. No. 0327, Sep. 16, 1992.
"Certificate of Packaging Performance", Ser. No. 1963, Appln. No. 0331, Jul. 20, 1992 with accompanying pages 1 and (unnumbered).

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