B - Operations – Transporting – 41 – F
Patent
B - Operations, Transporting
41
F
B41F 21/06 (2006.01) B41F 21/08 (2006.01) B41F 21/10 (2006.01) B41F 22/00 (2006.01)
Patent
CA 2057423
A vacuum assisted sheet transfer assembly to has an array of support bars 46 which guide the unprinted side of a freshly printed sheet S along a curved transfer path P. The support bars overlie the airflow inlet 44 of a manifold housing 16, with the support bars providing smooth surfaces for engaging and supporting the unprinted side of the sheet material as it is pulled along the transfer path while simultaneously limiting the flow of inlet air through elongated inlet apertures 52, 54. As air is drawn through the inlet apertures 52, 54, the unprinted side of the sheet is drawn into engagement with the support bars as it moves along the sheet transfer path. The sheet transfer assembly 10 eliminates the need for conventional skeleton wheels and the like. Marking, smearing and smudging are prevented since the printed side of the sheet S is not handled or contacted in any way as the sheet is conveyed along the transfer path p.
Demoore Howard Warren
Secor Howard Curtis
Johnson Ernest Peter
Printing Research Inc.
LandOfFree
Vacuum transfer apparatus for rotary sheet-fed printing presses does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vacuum transfer apparatus for rotary sheet-fed printing presses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum transfer apparatus for rotary sheet-fed printing presses will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1898703