Plastic bucket and lid

Details Plastic bucket and lid Plastic bucket and lid

B - Operations, Transporting

65

D

B65D 1/40 (2006.01) B65D 1/00 (2006.01)

Patent

CA 2152246

A plastic bucket has an annular lip and typically an attached plastic lid. The lid defines a peripheral, outer, annular wall which defines an outer wall of an annular recess of the lid. The bucket lip occupies the recess in locked, sealed relation with the lid. The bucket typically defines only a single, annular undercut which extends diagonally inward typically for a distance which is no more than about one quarter inch. This permits the bucket to be shaped in a manner to permit the use of present-day automated filling machinery, while the bucket is capable of being molded without a collapsible core. In the portion of the bucket defined by the undercut, the bucket may include integral, diagonally positioned strengthening ribs which are disposed in crossing array, to improve the hoop strength of the bucket adjacent the annular lip and the open mouth defined thereby. Also, a circumferential tear strip is typically provided in the outer, annular wall of the plastic lid. If desired, the outer, annular lid wall may define a lower edge which resides in an annular recess on an upper surface of a flange carried by the bucket. This prevents prying of the outer annular wall outwardly by a screwdriver or the like, which forces the container to be opened in a tamper-indicating way by tearing of the tear strip.

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