Double locking pail and cover for regulated materials

Claim 1

A receptacle assembly comprising an open top container and a cover (20) threfore, said cover having top (21b) and lower edges (9) and a periphery thereabout, said assembly comprising: a. a container having a bottom; and a side wall integrally connected to the bottom and extending upwardly from said bottom and terminating in a container wall top portion; b. said cover periphery having a first inner peripheral wall (26) extending downwardly from said top edge (21b) for a selected distance and then extending radially outwardly and upwardly away from said first cover wall (26) for a selected distance to form a second integrally connected wall; c. said second cover wall having an upper portion (26b) and a lower portion (26a); d. said upper portion (26b) of said second cover wall extending radially away from the first cover wall (26) to form a top segment (21); e. a third cover wall integrally connected with, and extending downwardly from the top segment (21), said third cover wall including locking means (28) extending radially toward said second cover wall (26b); f. said container wall top portion (11) having an upper extension (11a) terminating in a locking means (16) for locking engagement with said cover locking means (28), whereby said locking engagement of said container locking means (16) and said cover locking means (28) forms a first locking assembly; g. said container top wall portion having a tower portion with a shoulder (12) and an upwardly opening depression (12a) formed in the shoulder; h. said shoulder also including an upwardly extending lock member radially inwardly of said upper extension comprising a radially outwardly extending element having a portion (11b) extending over part of said depression to form a locking channel ring (80); i. said second cover wall lower portion (26a ) terminating in a substantially J-shaped locking tip (27) which fits into locking engagement with said ring (80) to form a second locking assembly.