Container with sealing cover

Claim 1

IN A CONTAINER OF THE CHARACTER DESCRIBED, ADAPTED FOR USE IN CONTAINING VOLATILE SUBSTANCES SUCH AS PAINT, WHICH COMPRISES A BOTTOM CONTAINER PORTION, AND A SNAPOFF TYPE OF HERMETICALLY SEALABLE COVER PORTION THEREFOR, SAID CONTAINER PORTION INCLUDING AN UPWARDLY EXTENDING CIRCULAR SIDE WALL WITH A TOP CURLED EDGE AND AN OUTWARDLY EXTENDING PERIPHERAL LEDGE INTERMEDIATE SAID SIDE WALL, SAID COVER PORTION HAVING A TOP CIRCULAR SURFACE WITH A PERIPHERAL BEAD OF GREATER DIAMETER THAN SAID CURLED EDGE, A DOWNWARDLY EXTENDING CIRCULAR SKIT OF SAID COVER WITH A CIRCUMFERENCE THEREOF HAVING A DECREASED DIAMETER SEALINGLY TO OVERLIE AND EMBRACE SAID CURL, A DOWNWARDLY DIRECTED PORTION OF SAID COVER OF CONSTANTLY DECREASING DIAMETER JOINING SAID SKIRT, AN INWARDLY DIRECTED CIRCUMFERENTIAL BEAD FORMED BY THE JUNCTURE OF SAID DOWNWARDLY DIRECTED PORTION OF SAID COVER SAND SAID SKIRT, SAID CIRCUMFERENTIAL BEAD BEING DISPOSED ABOVE SAID CURL WHEN THE COVER IS SECURED TO SAID BOTTOM CONTAINER PORTION, SAID SKIRT TERMINATING IN TWO OPPOSITELY DISPOSED PERIPHERAL EDGE SECTIONS ADAPTED TO SEAT THROUGHOUT THEIR ENTIRE LENGTHS AGAINST SAID LEDGE, SAID SECTIONS BEING FORMED BY AN AREA OF SAID SKIRT THAT IS CUT OUT SO AS TO PROVIDE A SPACE BETWEEN SAID SKIRT AND SAID LEDGE WHEN SAID COVER PORTION IS CLOSED OVER SAID CONTAINER PORTION, WHEREBY DOWNWARD PRESSURE ON SAID PERIPHERAL BEAD ABOVE SAID CUT-OUT WILL UNSEAT THE SAME AS THE ENDS OF SAID STRAIGHT EDGE SECTIONS ADJACENT SAID CUT-OUT ARE PIVOTED AGAINST SAID LEDGE, AND SAID COVER BEING PROVIDED WITH A CENTRAL DISHED OUT PORTION.