Appeal No. 1997-4050
Application 08/535,317
the bottom platen conductive surface 34 whenever the device is
being shipped or handled. The battery voltage is sufficient to
hold the movable member against the bottom platen 30 under a large
range of accelerations. The thin insulating layer 35 prevents
shorting between conductive surface 34 and lower conductive layer
42. The underlying conductive layer 42 on the member 40 ensures
close proximity and high force between cover 32 and surface 34
during caging.
The Prior Art
With respect to Figure 13, Henrion discloses a transducer,
useful as an accelerometer and the like, having a mass 36
supported from support 38 via springs 40. A voltage V is applied
cc
between sense conducting areas 90’ on plates of opposite support
members 82, 84. A voltage V is applied between force conducting
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areas 92’. Leads 96, connected to top and bottom sense conducting
areas 90 of mass 36, are also connected to lead 110. Leads 94,
connected to top and bottom force conducting areas 92' of mass 36,
are further connected to lead 112.
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