Systems and methods for transport through curves

Details Systems and methods for transport through curves Systems and methods for transport through curves

2007-06-14

2008-10-28

Deuble, Mark A (Department: 3651)

Conveyors: power-driven

Conveyor section

Load simultaneously engaged between and moved by a plurality...

C198S817000, C198S604000, C198S465300

Reexamination Certificate

active

07441648

ABSTRACT:
A transport system including a curved conveyance section configured for moving articles along a curved conveyance path. At least one turnstile wheel is configured to guide the articles along the curved conveyance path. In some embodiments, the turnstile wheel comprises a first surface configured to guide an exterior vertical belt along a continuous curve on an exterior edge of the curved conveyance path and a second surface configured to guide an interior vertical belt along a continuous curve on an interior edge of the curved conveyance path. The first surface and the second surface are configured to have a common axis of rotation outside the curved conveyance path and to rotate at a same angular velocity. The interior vertical belt and the exterior vertical belt are configured to support the articles as the articles are conveyed along the curved conveyance path. The articles are conveyed along the curved conveyance path without stopping or significantly slowing down. The articles conveyed may include semiconductor wafers or substrates for the manufacture of display devices.

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