Browse Prior Art Database

Original Publication Date: 1979-Feb-28
Included in the Prior Art Database: 2004-Mar-31

Publishing Venue

Xerox Disclosure Journal


In a pneumatic system for stapling a plurality of sheets to one another, a first piston moves a clamp to position the stack of sheets against a stapling head and a second piston activates the head to drive a staple through the sheets. During the stapling process, the adhesive, which holds the staples together to form sticks and other debris, normally tend to fall on the staple head. The piston moving the clamp is located in a cylinder and has compressed air on one side thereof. This air is directed by a conduit away from the stapler head to form an air blast. This air blast is then employed to blow the glue and debris away from the staple head. There is sufficient residual pressure in the cylinder to produce an air blast inasmuch as the pressure build up in the cylinder requires time to return to equilibrium after the piston returns to its initial position.