Patent ID: 6682006
Filing Date: 2004-01-27
Classification: B02C

Abstract:
A shredder comprising:a housing; an entry slot formed on the housing for inserting a desired medium; a shredding device installed in the housing for shredding the medium, the shredding device having two shredding knives and a shredding gap formed between the two shredding knives; a central trigger installed above a central portion of the shredding gap for sensing the medium and therefore starting the shredding device, and a side trigger installed between the central portion and an end of the shredding gap; wherein when a medium with its size longer than a length half of the shredding gap is inserted into the entry slot, the medium will trigger the central trigger device to start the shredding device; when a medium with its size shorter than the length half of the shredding gap is inserted into the entry slot, the medium is capable of triggering only the side trigger but not the central trigger to start the shredding device.