Apparatus for gripping high density disk packs for precision bal

Details Apparatus for gripping high density disk packs for precision bal Apparatus for gripping high density disk packs for precision bal

1989-01-17

1990-08-21

Chapman, John

Measuring and testing

Rotor unbalance

Dynamic

73475, 73487, 269 32, 269157, G01M 102

Patent

active

049495798

ABSTRACT:
A balancing apparatus for balancing a high precision magnetic disk drive includes a plate having a circular aperture in which three mounting surfaces grip a precision mounting ring on the disk pack to be balanced. The plate is mounted on a pivoting platform so that the pack can be lowered into the aperture, gripped by the mounting surfaces and then flipped into a horizontal position for balancing such that an operator has access to the disk pack to add balancing weights through the circular aperture.

REFERENCES:
patent: 884548 (1908-04-01), Warwick
patent: 1060477 (1913-04-01), Meyers
patent: 1761945 (1930-06-01), Van Degrift
patent: 2565965 (1951-08-01), Hartmann
patent: 2788686 (1957-04-01), Holt
patent: 3817088 (1974-06-01), Herbig

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