Patent 7886395 was granted and assigned to Acme United Corporation on February, 2011 by the United States Patent and Trademark Office.
A pencil sharpener case has a rotatable cover which covers a mechanical pencil sharpener. In one position, the cover may be rotatably retracted to provide access to the pencil sharpener. The case also mounts an eraser which may be used when the pencil sharpener is covered.