Container assembly for mixing materials

A container assembly for mixing materials comprising:

• a base having a top surface and an inner wall with said inner wall defining a mixing chamber for mixing the materials;
• a first locking device disposed on said top surface of said base;
• a cover having an outer periphery and being selectively mounted to said base covering said mixing chamber and being removable from said base exposing said mixing chamber;
• a second locking device disposed adjacent said outer periphery of said cover wherein said first and second locking devices interlock said cover to said base when said cover is mounted to said base and release said cover from said base as said cover is being removed from said base;
• and
• a lifting mechanism disposed on at least one of said base and cover for automatically lifting said cover relative to said base as said cover is being removed from said base for preventing a discharge of material from said mixing chamber.

A container assembly for mixing materials comprising:

• a base having an inner wall defining an upper surface and a mixing chamber for mixing the materials;
• a cover having an outer periphery and being selectively mounted to said base covering said mixing chamber and being removable from said base exposing said mixing chamber;
• a sealing portion depending from said cover and engaging said upper surface of said inner wall when said cover is mounted to said base;
• said sealing portion being at least partially flexible and angled outwardly toward said outer periphery such that during said engagement of said sealing portion with said upper surface, said sealing portion flexes and conforms to said upper surface to seal said mixing chamber for preventing an escape of material from said mixing chamber;
• and
• a mixing device mountable to said base for mixing the material in said mixing chamber when said cover is removed from said base.