Precise movement device

Work holders – Holder mounted for movement – With plural means for changing holder positions

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Details

188 43, 355 53, B25B 122

Patent

active

046155155

ABSTRACT:
A precise movement device of the type for guiding a movable member with hydrostatic pressure or a magnetic field and moving the movable member substantially without a friction. The device includes a mechanism for supporting the movable member by the use of hydrostatic pressure or a magnetic field and for guiding the movement of the movable member, and includes a mechanism for generating a resistance against the movement of the movable member when the movable member is to be stopped, such that the movable member can be stopped at a desired position accurately and in a reduced time.

REFERENCES:
patent: 4234175 (1980-11-01), Sato et al.
patent: 4370054 (1983-01-01), Isohata et al.
patent: 4538706 (1985-09-01), Koppensteiner

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