Motorized leveling stages

Details Motorized leveling stages Motorized leveling stages

2008-11-25

2010-10-12

Johnson, Amy Cohen (Department: 2841)

Geometrical instruments

Gauge

Surface plate or gauge block

C033S568000, C033S537000, C033S573000, C269S009000

Reexamination Certificate

active

07810251

ABSTRACT:
A motorized leveling stage capable of adjusting the angular position of a work piece relative to a reference plane includes an upper stage, a lower stage, and a hinge coupling corresponding edges of the two stages together for relative pivotal movement of the stages. A first spring pivotally biases the upper and lower stages toward each other about the axis of the hinge. A slide is disposed for sliding movement on an upper surface of the lower stage in a direction generally perpendicular to the hinge axis. The slide includes an upper surface defining an inclined plane disposed in sliding abutment with a lower surface of the upper stage such that movement of the slide toward and away from the hinge respectively raises and lowers the upper stage relative to the lower stage. A motorized drive assembly is operable to control movement of the slide relative to the hinge.

REFERENCES:
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patent: 5653038 (1997-08-01), Hunter
patent: 5731641 (1998-03-01), Botos et al.
patent: 5836080 (1998-11-01), Inagaki et al.

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