Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Reexamination Certificate
2007-04-05
2009-11-17
Barrera, Ramon M (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
C310S015000, C310S021000, C310S030000
Reexamination Certificate
active
07619498
ABSTRACT:
A vibrator has a cup-shaped casing, a substrate provided to close an upper end opening of the casing, a magnetic circuit assembly provided in the casing, a first suspension and a second suspension that support the magnetic circuit assembly from above and below, and a voice coil secured to the substrate and inserted into a magnetic gap in the magnetic circuit assembly. The first suspension has an inner fixed portion that is secured to the substrate and that has a radially inner ring-shaped portion and a pair of extensions extending radially outward from mutually diametrically opposing positions on the ring-shaped portion. The first suspension further has a pair of leaf spring portions arcuately extending from the respective extensions through an angle of about 270 ° in symmetry to each other around the axis of the voice coil. Further, the first suspension has outer fixed portions disposed at the distal end portions of the leaf spring portions and secured to the upper end surface of a weight of the magnetic circuit assembly.
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GB Search Report dated Jun. 12, 2007 in EPO Patent Application No. GB0706536.0.
Barrera Ramon M
Brinks Hofer Gilson & Lione
Citizen Electronics Co. Ltd.
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