An ultrasonic sealing tool, comprising: an anvil including a sealing surface including upper and lower sealing surfaces; a horn including a sealing surface including upper and lower sealing surfaces facing the sealing surface of the anvil ; wherein: each of the upper and lower sealing surfaces of said anvil includes a plurality of beads including a first bead having a first height and at least one second bead having a second height, the second height being less than the first height; the ultrasonic sealing tool is configured to deliver ultrasonic vibrations via at least one of said anvil and said horn to create closure seals in a work piece positioned between said anvil and said horn , each of the closure seals including a first seal created by the first bead and at least one second seal created by the at least one second bead , the first seal having a weld depth greater than a weld depth of the at least one second seal ; and the ultrasonic sealing tool further comprises a cutting tool extendible between the upper and lower sealing surfaces of at least one of the anvil and the horn, the cutting tool configured to sever the workpiece upon actuation. an anvil including a sealing surface including upper and lower sealing surfaces; a horn including a sealing surface including upper and lower sealing surfaces facing the sealing surface of the anvil ; wherein: each of the upper and lower sealing surfaces of said anvil includes a plurality of beads including a first bead having a first height and at least one second bead having a second height, the second height being less than the first height; the ultrasonic sealing tool is configured to deliver ultrasonic vibrations via at least one of said anvil and said horn to create closure seals in a work piece positioned between said anvil and said horn , each of the closure seals including a first seal created by the first bead and at least one second seal created by the at least one second bead , the first seal having a weld depth greater than a weld depth of the at least one second seal ; and the ultrasonic sealing tool further comprises a cutting tool extendible between the upper and lower sealing surfaces of at least one of the anvil and the horn, the cutting tool configured to sever the workpiece upon actuation. each of the upper and lower sealing surfaces of said anvil includes a plurality of beads including a first bead having a first height and at least one second bead having a second height, the second height being less than the first height; the ultrasonic sealing tool is configured to deliver ultrasonic vibrations via at least one of said anvil and said horn to create closure seals in a work piece positioned between said anvil and said horn , each of the closure seals including a first seal created by the first bead and at least one second seal created by the at least one second bead , the first seal having a weld depth greater than a weld depth of the at least one second seal ; and the ultrasonic sealing tool further comprises a cutting tool extendible between the upper and lower sealing surfaces of at least one of the anvil and the horn, the cutting tool configured to sever the workpiece upon actuation. <EOS>