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Hassan Javathu K, Rabstejnek Carl V: Precision tool and workpiece positioning apparatus. International Business Machines Corporation, Dick William J, September 9, 1975: US3904945 (16 worldwide citation)

Apparatus for positioning a workpiece and tool in a precise location relative to each other by positioning in a predetermined site the workpiece, and then positioning the tool in a precise predetermined position relative to the site in minimum total time. The apparatus comprises a closed loop positi ...


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Hassan Javathu K, Rabstejnek Carl V, Wutka Anthony D: Precision tool and workpiece positioning apparatus with ringout detection. International Business Machines Corporation, Dick William J, May 27, 1975: US3886421 (7 worldwide citation)

Apparatus for positioning a workpiece and tool in a precise location relative to each other by positioning in a predetermined site the workpiece, and then positioning the tool in a precise predetermined position relative to the site in minimum total time. The apparatus comprises a closed loop positi ...


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Rabstejnek Carl V, Hassan Javathu K: Positionneur de piece, Workpiece positioning apparatus. International Business Machines Corporation, August 29, 1978: CA1037506

ABSTRACT Disclosed is an X-Y table for positioning semicon-ductor workpieces in a vacuum environment with a high degreeof speed and accuracy. The X and Y prime movers are mountedon adjacent external surfaces of the vacuum chamber. Thefirst motor associated with the drive in the Y directionseals with ...


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