Measuring and testing – Speed – velocity – or acceleration – Liquid surface is or moves reading means
Reexamination Certificate
2005-08-25
2008-10-14
Williams, Hezron E. (Department: 2856)
Measuring and testing
Speed, velocity, or acceleration
Liquid surface is or moves reading means
C073S514320, C361S283300, C324S660000
Reexamination Certificate
active
07434463
ABSTRACT:
A moving member having a plurality of moving electrodes is supported by support members at both ends thereof on a substrate surface in such a way that it can be subjected to displacement in a two-dimensional plane. A plurality of fixed electrodes are arranged to face the plurality of moving electrodes respectively, thus forming different facing areas therebetween when an input acceleration is zero. The facing areas formed between pairs of the electrodes facing each other are varied in response to the displacement of the moving member, whereby a capacitance caused by one pair of the electrodes whose facing area is relatively small is used to detect a relatively small input acceleration, and a capacitance caused by the other pair of the electrodes whose facing area is relatively large is used to detect a relatively large input acceleration.
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Bellamy Tamiko D
Dickstein & Shapiro LLP
Williams Hezron E.
Yamaha Corporation
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