Pod transfer system having retractable mast and rotatable...

Details Pod transfer system having retractable mast and rotatable... Pod transfer system having retractable mast and rotatable...

2005-04-19

2005-04-19

Brahan, Thomas J. (Department: 3652)

Material or article handling

Apparatus for moving material between zones having different...

For carrying standarized mechanical interface type

C414S940000

Reexamination Certificate

active

06881020

ABSTRACT:
A pod transfer system having a retractable mast and a rotatable and vertically movable hoist is disclosed. A first extendable robot is situated under a first overhead transfer (OHT) unit, and a second extendable robot is situated under the second OHT unit. Each extendable robot has a fully retracted position for loading a pod from its respective OHT unit, as well as a fully extended position. The retractable mast is situated between a first conveyer and a second conveyer that are themselves situated between the OHT units. The retractable mast has a default fully extended position and a tool move-in fully retracted position. The hoist is situated on the retractable mast. The hoist is able to load the pod from either robot when the robot is in its fully extended position, and is able to load the pod to one of the conveyors.

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patent: 431933 (1999-07-01), None

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