Sheet feeding or delivering – Delivering – By pneumatic conveyor
Reexamination Certificate
2006-03-21
2006-03-21
Walsh, Donald P. (Department: 3653)
Sheet feeding or delivering
Delivering
By pneumatic conveyor
C271S276000, C271S003220, C271S196000
Reexamination Certificate
active
07014187
ABSTRACT:
A new and improved article or mail-piece conveyor system has a vacuum plenum system integrally incorporated therein which effectively withdraws ambient air ahead or downstream of the oncoming conveyed articles or mail pieces such that the oncoming conveyed articles or mail pieces will not be subjected to tip vortices and/or other disruptive aerodynamic forces. In this manner, the articles or mail pieces will not be subjected to destabilizing aerodynamic circulation, currents, downflow, downwash, or momentum forces so as not to, in turn, exhibit flutter, fluctuations, or oscillation movements. Accordingly, extremely high speed conveyance of the articles or mail pieces, within the range of, for example, two hundred inches per second (200 ips) can in fact be achieved.
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Bollinger Joe C.
Mayerberg II Willson L.
Olson Jack E.
Joerger Kaitlin
Lockheed Martin Corporation
Schwartz & Weinrieb
Walsh Donald P.
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