Moving coil actuator with expandable range of motion

Details Moving coil actuator with expandable range of motion Moving coil actuator with expandable range of motion

2005-11-30

2010-02-16

Franklin, Jamara A (Department: 2876)

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Coded record sensors

Particular sensor structure

Reexamination Certificate

active

07661593

ABSTRACT:
A moving coil actuator contains a magnet assembly that is movable to shift the range of motion of the coil. The magnet assembly moves between two or more positions along a path of travel that is parallel to the path of travel of the reciprocating motion of the coil. With this feature, the width of an area scanned by a scanning head affixed to the coil can be increased by multiples allowing a simple moving coil actuator to be used for any scanning width.

REFERENCES:
patent: 4516062 (1985-05-01), La Fiandra et al.
patent: 4913155 (1990-04-01), Dow et al.
patent: 5134326 (1992-07-01), Sakamoto
patent: 5459325 (1995-10-01), Hueton et al.
patent: 6355934 (2002-03-01), Osgood et al.
patent: 6710353 (2004-03-01), Loopstra
patent: 6932274 (2005-08-01), Dvorkis
patent: 2008/0160500 (2008-07-01), Fuller et al.

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