Double ribbed secure container

A container having base and lid elements formed of at least one sheet, wherein said base and lid elements are centered on a vertical axis, wherein said base element has a base rim portion and said lid element has a lid rim portion, wherein:

• the rim portion of a first of said elements forms a largely vertical projection part with radially spaced inner and outer projection walls, said projection part extending at least 270°around said axis;
• the rim portion of a second of said elements forms a largely vertical groove part that extends at least 270° around said axis and that receives said projection, said largely vertical groove having radially inner and outer groove walls that engage said inner and outer projection walls;
• said base rim portion has a raised base outer rib radially outward of said projection part and of said groove part when the lid is closed on the base, and said base rim portion forms a horizontal base support wall extending between said base outer rib and the corresponding one of said projection and groove parts;
• said lid has a lid rim part with a radially outer lid rim edge on said base support wall;
• said base outer rib has a pair of circumferentially-spaced gaps, each of the gaps having a gap line defined therein, with one of said gap lines forming a gap tear line, and with a separation line radially inward of said base outer rib and extending between said gap lines, to allow access to said lid rim edge by moving a tab that lies radially outward of said separation line and between said gap lines.

A container having a base and lid formed of at least one sheet, wherein said base and lid are centered on a vertical axis, wherein said base has a base rim portion with an upward-facing base support wall that extend at least 270° around said axis, and said lid has a lid rim portion with a lid rim part that lies on said base support wall, with said lid rim part having an outer lid rim edge, wherein:

• said base rim portion has a raised base outer rib that lies immediately radially outside said base support wall, to block access to said lid rim part, said base outer rib extending along substantially the entire base rim portion except that said base outer rib has a pair of gaps;
• said base rim portion has a primarily radial tear gap line lying in at least one of said gaps and has a pivot gap line lying in the other of said gaps and said base rim portion forms a primarily circumferentially-extending tab between said gap lines and along said base support wall;
• said base rim portion also has a separable line extending primarily circumferentially between said gap lines and lying radially inward of said tab, so that after said tear gap line is torn said tab can be moved to expose the lid rim part between said gap lines;
• said base outer rib and said lid rim part form means for allowing said lid to close on said base and for thereafter preventing the lid from being grasped until said radial tear gap line is torn and said tab is moved out of the way of grasping said lid rim part to raise it.