Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Reexamination Certificate
2010-12-11
2011-12-13
Guadalupe-McCall, Yaritza (Department: 2841)
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
C033S366120
Reexamination Certificate
active
08074367
ABSTRACT:
A motion-sensing device for sensing tilt and acceleration when either tilt, horizontal acceleration, or tilt and horizontal acceleration acting concurrently, influence the device, including: a substrate having a vertical surface, a first accelerometer fixed to the vertical surface of the substrate; a pendulum flexibly coupled to the substrate proximate to the first accelerometer; and a second accelerometer fixed to the pendulum. The first and/or second accelerometers are preferably an accelerometer; a spring-mass system; and/or any tilt or accelerometer sensitive elements. The first accelerometer includes an accelerometer that measures tilt and linear acceleration in a first geometric plane, the pendulum is constrained to move in the first geometric plane, and the second accelerometer is operable to measure linear acceleration in the first geometric plane. The motion-sensing device or devices coupled to a machine, vehicle, and/or a control system. The pendulum is critically damped using a damping fluid.
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Guadalupe-McCall Yaritza
Jenkins Keith L.
Keith L. Jenkins Registered Patent Attorney, LLC
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