Easy open tear strip can ends

Claim 1

AN ALUMINUM COVER HAVING A DEPRESSED PANEL ENCIRCLES BY A RIM FOR ATTACHMENT TO A CONTAINER BODY AND HAVING AN ANNULAR TEAR STRIP DEFINED LENGTHWISE BY FLATBOTTOM, OUTER AND INNER SCORE LINES OF A DEPTH SUBSTANTIALLY EQUAL TO A MOJOR PORTION OF THE THICKNESS OF THE PANEL AND SPIRALLY TURNED INWARDLY TO DEFINE THE SIDES OF A SPIRALLY INTURNED STARTING END FOR SAID STRIP; (A) AN UPRIGHT HOLLOW RIVET INTEGRAL WITH THE INNER END OF SAID TONGUE, AROUND THE RIVET BASE SAID SPIRALLY INTURNED SCORE LINES CLOSED UPON THEMSELVES IN CLOSE PROXIMITY THERETO; (B) AN ELONGATED SHEET METAL LEVER PULLED TAB DISPOSED IN THE ORIGINAL PLANE OF THE PANEL CLAMPED AT ONE END BY SAID RIVIT TO THE INNER END OF SAID TONGUE AS A LEVER EXTENSION THEREOF AND OPERABLE BY LIFTING ITS FREE OTHER END TO SNAP OPEN SAID TONGUE END FROM THE COVER AND INITIATE TEAR-OUT OF SAID STRIP FROM THE COVER ALONG SAID SCORE LINES; (C) SAID OUTER SCORE LINE BEING A CONTINUOUS RING AROUND THE COVER AND DEFINING THE TEAR-OUT AREA OF THE COVER. (D) AND SAID PANEL BEING CHARACTERIZED BY THE PROVISION OF A DEPRESSED FLAT AREA PERIPHERAL BORDERED BY SAID OUTER SCORE LINE AND OF A DEPTH SUBSTANTIALLY EQUAL TO THE PANEL THICKNESS, AND THIS AREA HAVING EMBOSSMENTS OF A HEIGHT EQUAL TO SAID DEPTH WITH THE SCORE LINES DEFINING SAID TONGUE AND THE INNER SIDE OF THE TEAR STRIP IN THE CRESTS THEREOF, SAID TEAR STRIP HAVING SLOPING SIDES THROUGHOUT ITS LENGTH IN WHICH METAL DISPLACED LATERALLY DURING FORMATION OF SAID SCORE LINES IS ABSORDED.