Patent attributes
An apparatus including a main housing and a cartridge enclosure including a first connector to removably couple the cartridge enclosure to a cartridge including a container having an opening across a plane, at least one drawstring disposed around the opening to close the opening upon the at least one drawstring being pulled, and a rigid support disposed around the plane of the opening to maintain the opening across the plane as the opening is being closed. The apparatus further includes an arm including a second connector to removably couple the arm to the at least one drawstring. A first spring between the arm and the cartridge is disposed to allow the arm to move away from the cartridge a predetermined distance which pulls the at least one drawstring to close the opening.