Container body and closure structure

Claim 1

A HERMATICALLY SEALED PACKAGE COMPRISING: A TUBULAR CONTAINER BODY HAVING A BOTTOM AND A SIDE SEAM AND AN INWARDLY ROLLED TOP CURL AT THE UPPER END THEREOF; SAID SIDE SEAM HAVING AN OVERLAPPED AND AN UNDERLAPPED MARGIN; THAT PORTION OF THE SIDE SEAM WHICH CROSSES THE TOP CURL DEFINING A CROSS-OVER PORTION; A PRODUCT WITHIN SAID CONTAINER BODY; AN UPPER END CLOSURE IN THE FORM OF A REMOVABLE COVER OVERLYING SAID CONTAINER BODY TOP CURL; SAID COVER INCLUDING A DEPRESSED CENTRAL PANEL MOUNTED WITHIN SAID TOP CURL AND AN INVERTED PERIPHERAL CHANNEL OVERLYING SAID TOP CURL IN SPACED JUXTAPOSITION THERETO; SAID CROSS-OVER PORTION INCLUDING A PAIR OF SPACED RADIALLY EXTENDING STEPS ON THE OVERLAPPED MARGIN OF SAID SIDE SEAM, AND A LONGITUDINALLY EXTENDING STEP INTERCONNECTING SAID PAIR OF RADIALLY EXTENDING STEPS; SAID PAIR OF RADIALLY EXTENDING STEPS INCLUDING STEPS; STEP WHICH IS A CONTINUATION OF THE CONTAIER BODY SIDE SEAM EDGE AND WHICH TERMINATES AT ABOUT THE APEX OF SAID TOP CURL AND A SECOND STEP WHICH IS OFFSET FROM THE FIRST STEP AND WHICH COMMENCES AT ABOUT THE TOP CURL APEX AND TERMINATES AT THE TERMINUS OF SAID TOP CURL; SAID LONGITUDINALLY EXTENDING STEP BEING A STEP WHICH IS DISPOSED BETWEEN SAID PAIR OF RADIALLY EXTENDING STEPS AND INTERCONNECTES THE TERMINAL END OF SAID FIRST STEP WITH THE COMMENCEMENT END OF SAID SECOND STEP, AND WHICH THUS EXTENDS CIRCUMFERENTIALLY ALONG THE APEX OF SAID TOP CURL FOR A DISTANCE CORRESPONDING TO THE SPACING OF SAID RADIALLY EXTENDING STEPS; A SEALING MATERIAL INTERPOSED BETWEEN SAID TOP CURL AND SAID COVER CHANNEL; A VACUUMIZING PORT IN SAID COVER CENTRAL PANEL THROUGH WHICH SAID PRODUCT IS VACUUMIZED; AN ADHESIVE PATCH SEALINGLY OVERLYING SAID VACUUMIZING PORT TO RETAIN THE VACUUM WITHIN SAID CONTAINER; THE PRESSURE DIFFERENTIAL BETWEEN THE AMBIENT PRESSURE SURROUNDING SAID CONTAINER AND THE VACUUM WITHIN SAID CONTAINER CAUSING SAID COVER TO DRAW DOWN TIGHTLY UPON SAID CONTAINER BODY THUS CAUSING SAID SEALING MATERIAL TO SEAL UPON SAID TOP CURL AND UPON THE STEP EXTENDING CIRCUMFERENTIALLY THEREALONG; SAID CONTAINER BEING MANUALLY OPENABLE BY REMOVAL OF SAID ADHESIVE PATCH WHICH BREAKS THE VACUUM IN SAID CONTAINER AND ALLOWS SAID CONTAINER COVER TO BE EASILY MANUALLY REMOVED.