Patent ID: 8230995

Claim:
A container for a coil of trimmer line, the container comprising: a) a front shell having an outer edge formed into a series of teeth and a circular inner edge; b) a front bonding surface integral with the front shell at the inner edge of the front shell; c) a male index formed into the front bonding surface; d) a rear shell having i. an outer edge that abuts the outer edge of the front shell and is formed into a series of teeth; and ii. a circular inner edge having substantially the same diameter as the inner edge of the front shell; e) a rear bonding surface that is: i. integral with the rear shell at the inner edge of the rear shell; and ii. melt-bonded to the front bonding surface; and f) a female index formed into the rear bonding surface and configured to align with the male index to offset the teeth of the front shell from the teeth of the rear shell, creating an undulating separation between the outer edge of the top shell and the outer edge of the bottom shell.