Method of positioning a platform relative to a fixed frame...

Details Method of positioning a platform relative to a fixed frame... Method of positioning a platform relative to a fixed frame...

2007-12-18

2007-12-18

Cozart, Jermie E. (Department: 3726)

Metal working

Method of mechanical manufacture

Assembling or joining

C029S559000, C029S281100, C029S281400, C269S058000, C359S391000, C248S593000, C033S568000

Reexamination Certificate

active

10761585

ABSTRACT:
A small-scale positioning device employing a platform, a levering mechanism and a floating actuator device. The platform is movably attached to a fixed frame by a lever, a pair of levers, or more. The floating actuator device is coupled between at least one lever and the platform. When the actuator device is activated, it generates a force on the platform and an equal but opposite force on the levering mechanism, causing one or more levers to rotate around their respective fulcrums, thereby controlling the position of the movable platform relative to the fixed frame. The amount of displacement of the platform is dependent upon the effective expansion or contraction of the actuator device and the lever ratio. If the pair of levers are symmetrical, then motion is created in only a single degree of motion. Flexures may be included to prevent motion in unwanted directions.

REFERENCES:
patent: 6467761 (2002-10-01), Amatucci et al.
patent: 6817104 (2004-11-01), Kaneko et al.

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