Abstract: A cylindrical composting drum which is 6?, 8?, or 10? in diameter, extends between 40? and 140? in length. The drum is rotated and internal helical blades move the material from inlet end to a screen separator at an outlet end. Partially arcuate solar reflectors underlie the drums and reflect solar energy onto the outer surface of the drums which have been blackened to enhance energy absorption. The use of the available solar energy accelerates the composting process. A microprocessor controls the addition of moisture and the timing and rate of rotation of the drums.

Abstract: A rectangular box closure clip engages the two top flaps of a shipping container holding them securely without damaging the carton enabling the boxes to be reused without the need for being reformulated. The closure clip includes a pair of lower surfaces and a pair of upper surfaces interconnected by a central web that extends substantially throughout the length of the clip. The edges of the two upper surfaces are set back to facilitate insertion into the box. In a second embodiment, a vertically extending endstop is provided to prevent a box stacked atop the clip from sliding axially relative thereto. In still a third embodiment, a recess allows a binder strap to be installed around the clip to retain it in place. A programmable, scanable chip may be incorporated into the closure clip to facilitate tracking and/or to tamper-proof the package.