Container including a magnetically operated scraper

A container for a bulk material having an interior surface, including a container interior bulk material movement system, the system comprising:

• a scraper assembly disposed in the container and configured to reciprocally move from one end to another end of the container;
• a driver assembly configured to move along an outer surface of the container;
• a driven assembly coupled to the scraper assembly, with the driven assembly in magnetic communication with the driver assembly;
• one of a magnet and a magnetically attractable material disposed in each of the driver assembly and driven assembly wherein a magnetic coupling is established between the driver and driven assemblies;
• and
• a motion appliance exterior to the container including a motor and a force transfer mechanism extending along the container and coupled to the driver assembly and configured to move the driver assembly along the outer surface of the container, wherein movement of the driver assembly outside the container causes a corresponding movement of the driven assembly and coupled scraper assembly inside the container to move the bulk material inside the container;
• wherein the scraper assembly includes a framework and a scraper portion conforming to a portion of the interior surface of the container;
• and
• wherein the driver assembly and driven assembly each comprise:
• a carriage defining a slot with at least one surface of each carriage configured with the same contour as one of the exterior wall and interior wall of the container, with the one of a magnet and a magnetically attractable material disposed in each slot with one surface of the one of the magnet and the magnetically attractable material configured with the same contour as the one surface of the carriage.