The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 2011
Filed:
Aug. 26, 2009
Marina L Tharayil, Rochester, NY (US);
Keith a Buddendeck, Rochester, NY (US);
Paul J Degruchy, Hilton, NY (US);
Steven R Moore, Pittsford, NY (US);
Barry P Mandel, Fairport, NY (US);
Marina L Tharayil, Rochester, NY (US);
Keith A Buddendeck, Rochester, NY (US);
Paul J Degruchy, Hilton, NY (US);
Steven R Moore, Pittsford, NY (US);
Barry P Mandel, Fairport, NY (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
A drive roll/idler roll nip release mechanism utilizes the motor used for the drive nip, coupled with one-way clutches, to power the nip release as a sheet is handed off to a downstream nip. A drive shaft is coupled to a first one-way clutch in one direction and an idler cam shaft is coupled to a second one-way clutch in the opposite direction. This allows the idler cam shaft to be driven only when the motor is reversed, and the drive shaft to be driven only when the motor is moving forward. The one-way clutch on the drive shaft allows the drive wheels to freewheel when the motor is reversed in order to engage the nip release. Thus, the nip release is activated while the drive nip continues to rotate in the direction of sheet motion.