Active spring rate adjust

Details Active spring rate adjust Active spring rate adjust

2001-05-07

2003-07-22

Echols, P. W. (Department: 3726)

Metal working

Method of mechanical manufacture

Spring making

C029S603030, C360S244800

Reexamination Certificate

active

06594902

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to the field of manufacturing bead suspensions for magnetic disk drives, more particularly, to adjusting the spring rate for load beams used in such head suspensions, by initially providing a partially etched spring region with a plurality of bridges or frets and subsequently adjusting the number of bridges in the spring region of the load beam to reduce the variability in the spring rate of such load beams.


REFERENCES:
patent: 5734525 (1998-03-01), Girard
patent: 5995335 (1999-11-01), Jurgenson et al.
patent: 6141187 (2000-10-01), Wong et al.
patent: 6388842 (2002-05-01), Murphy
patent: Heisei 5-159501 (1993-06-01), None

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