Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-08-08
2006-08-08
Trieu, Van T. (Department: 2636)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S545500, C340S571000
Reexamination Certificate
active
07088258
ABSTRACT:
A tilt sensor apparatus (36) includes one or more tilt sensors (42). Each tilt sensor (42) includes a conductive element (64) entrapped within an opening (46) formed through a middle planar substrate (38). The opening is surrounded by an opening wall (52) which is entirely covered by a conductor (54). A conductive star pattern (100′) is formed on a top planar substrate (40), and a conductive star pattern (100″) is formed on a bottom planar substrate (44). The star patterns (100) are positioned at opposing ends of the opening (46). The conductive element moves within the opening (46) as the apparatus (36) is tilted. An interrupt-driven control circuit (124) is configured to indicate a change in orientation only when a short is first detected across a contact pair (54/56, 54/60) that corresponds to an orientation opposite to a currently-indicated orientation.
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Meschkow & Gresham P.L.C.
Nuvo Holdings, LLC
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