Patent ID: 6869010
Filing Date: 2005-03-22
Classification: B26F,Y10T

Abstract:
1. A hole punch apparatus for perforating sheets moving in a sheet path, said sheet path having spacing between pitches, comprising: a. a member rotatable in the direction of the sheet path; b. a first punch attached to the rotatable member and positioned to intersect the sheet path when rotated to a position orthogonal to the sheet path; c. a second punch attached to the rotatable member, said second punch positioned to intersect the sheet path when rotated to a position orthogonal to the sheet path and positioned at an angle relative to the first punch such that when either the first or second punch intersect the sheet path, the other punch is rotated to a position that does not intersect the sheet path; d. a drive mechanism for powering continuous rotation of the rotating member during perforation of successive sheets; and e. a controller, cooperating with the drive mechanism, for controlling the rotation of the rotatable member such that when one punch is selected for intersection with a sheet in the sheet path, rotation is timed such that the other punch intersects the sheet path in a space between pitches.