Sealed container

A sealed container which is easily opened comprising:

• a base jar for containing a substance, said jar including
• a bottom wall,
• a side enclosure extending upwardly from said bottom wall and including an upper portion disposed radially about a central axis with a screw thread about said upper portion,
• a curved upper wall extending inwardly and upwardly from said upper portion of said side enclosure and radially about the central axis, said upper wall including a circular brim which defines a mouth opening for said jar;
• and
• a removable lid for said jar which seals said opening, said lid including
• a top wall disposed about the central axis,
• an encircling member extending downwardly from said top wall and radially about the central axis, said encircling member including a screw thread which matingly engages with said screw thread of said upper wall of said jar,
• a circular projection extending downwardly from said lid and radially about the central axis which engages and seals with said circular brim after said screw threads of said jar and lid engage,
• a circular flexible flange extending downwardly from said lid and radially about said circular projection and the central axis, said flexible flange having a tip which is radially flexed relative to a remainder of said flange upon engagement with said curved upper wall of said jar to seal therewith as said circular projection and circular brim matingly engage, and
• a stacking means for stacking one said container vertically on another, said stacking means including (a) in said top wall of said lid, a top recess about the central axis and an outer downwardly bevelled portion surrounding said top recess, and (b) in said bottom wall of said base jar, a concavity having an exterior surface which mates with said bevelled portion of an underlying lid and stacking lugs projecting downwardly from the exterior surface of said concavity which are received inside of said top recess of the underlying lid, said top wall of said lid includes a circular centering rim extending downwardly from said top wall and radially about the central axis just inside and downwardly beyond said circular projection such that before engagement of said circular projection with said circular brim said centering rim engages an inside surface of said circular brim to positively locate said circular projection vertically adjacent said circular brim.