US Patent 7743700 Roller die press

A roller press includes a housing to which upper and lower rollers are coupled. A crank handle is coupled to at least one of the upper and lower rollers. Rotation of the crank handle causes rotation of the rollers. Two doors that provide die support surfaces are coupled to the housing and are moveable between a closed position and an open position. A suction member is coupled to the bottom of the housing. The suction member is actuated by movement of the doors.