Patent ID: 6644491
Filing Date: 2003-11-11
Classification: B65D,Y10S

Abstract:
A tamper-resistant closure for mounting on a can having a body and a dome coupled to a top end of the body and formed to include an annular ridge surrounding a discharge valve mounted on the dome, the closure comprisinga cap including a side wall having an annular lower rim, a removable tamper band coupled to a lower edge of the annular lower rim to define a frangible tear line therebetween, means for engaging an annular ridge on a can to retain the can on the can when the closure is mounted on the can in a tamper-resistant position the engaging means including cap retainers coupled to the annular lower rim and tamper band retainers coupled to the removable tamper band, wherein the annular lower rim includes an annular rim strip and a series of downwardly extending retainer tabs positioned to lie in circumferentially spaced-apart relation to one another about the annular rim strip, the removeble tamper band includes an annular band strip and a series upwardly extending retainer mounts arranged to lie in circumferentially spaced-apart relation to one another about the annular band strip and in spaces defined between adjacent downwardly extending retainer tabs to establish an annular alternating series of downwardly extending retainer tabs and upwardly extending retainer mounts lying in end-to-end relation to one another between the annular rim strip and band strip; and wherein a first of the tamper band retainers subtends an angle of about 69Â°, a first of the cap retainers subtends an angle of about 23.5Â°, a second of the tamper band retainers subtends an angle of about 75Â°, a second of the cap retainers subtends an angle of about 23.5Â°, a third of the tamper band retainers subtends an angle of about 75Â°, and a third of the cap retainers subtends an angle of about 23.5Â°.