Pressure equalizing package

Claim 1

A PRESSURE EQUALIZING SANITARY PACKAGE COMPRISING CONTAINER MEANS HAVING AN OPEN END DEFINED BY A FIRST CIRCUMFERENTIAL RIM AND A SECOND CIRCUMFERENTIAL RIM RADIALLY INWARDLY OF SAID FIRST RIM, ONE PIECE SNAP-ON MANUALLY REMOVABLE CLOSURE MEANS ADAPTED TO BE INSERTED WITHIN AND RETAINED ON SAID SECOND CIRCUMFERENTIAL RIM OF SAID CONTAINER MEANS, SAID CONTAINER MEANS HAVING A PORTION THEREOF OFFSET RADIALLY OUTWARDLY RELATIVE TO THE SMALLEST DIAMETER OF SAID SECOND CIRCUMFERENTIAL RIM, SAID OFFSET PORTION BEING ADJACENT SAID SECOND CIRCUMFERENTIAL RIM, SAID CLOSURE MEANS HAVING AN END WALL PORTION FOR CLOSING OFF SAID SECOND CIRCUMFERENTIAL RIM AND SIDE WALL MEANS EXTENDING UPWARDLY FROM SAID END WALL PORTION, KNOB MEANS FORMED IN SAID END WALL PORTION ADAPTED TO BE GRASPED BY THE HUMAN HAND OF MANUAL REMOVAL OF SAID CLOSURE MEANS FROM ENGAGEMENT WITH SAID SECOND CIRCUMFERENTIAL RIM, THE SIDE WALL MEANS AND THE SECOND CIRCUMFERENTIAL RIM OF SAID CLOSURE AND CONTAINER MEANS RESPECTIVELY EACH BEING FORMED WITH A SEALING MEANS PORTION FOR NORMALLY ENGAGING EACH OTHER TO SEAL SAID CONTAINER MEANS WHEN IN ASSEMBLED RELATION, AND ONE OF SAID SIDE WALL MEANS AND SAID SECOND CIRCUMFERENTIAL RIM BEING FORMED WITH AN INTEGRAL VENTING MEANS PORTION SPACED FROM SAID OFFSET PORTION OF SAID CONTAINER MEANS OUTWARDLY FROM THE INTERIOR OF SAID CONTAINER MEANS, SAID VENTING MEANS PORTION BEING ARRANGED RELATIVE TO SAID RESPECTIVE SEALING MEANS PORTIONS TO CAUSE TEMPORARY DISENGAGEMENT THEREOF WHEN THE INTERIOR OF SAID CONTAINER IS AT A LOWER PRESSURE THAN THE EXTERIOR OF SAID CONTAINER TO EQUALIZE THE PRESSURE THEREBETWEEN AND FACILITATE REMOVAL OF SAID CLOSURE MEANS FROM SAID SECOND RIM OF SAID CONTAINER MEANS.