Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Reexamination Certificate
2008-05-13
2008-05-13
Bennett, G. Bradley (Department: 2859)
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
C033S390000, C340S689000
Reexamination Certificate
active
11422345
ABSTRACT:
A potential parking area level indicator is provided that includes a centralized hub with a plurality of arms depending therefrom. Preferably, four arms are provided that are spaced 90 degrees from each other thereby defining two sets of opposing arms. In operation, a driver of an RV would locate the level indicator on a potential parking area thereby placing the arms onto the potential parking surface. If the line defined by a pair of opposed arms is placed on a generally level area, indicator lights will illuminate indicating that fact. If, however, the line defined by opposing arms is placed on a grade that is not acceptable for parking, the indicator lights will not illuminate showing that the potential parking area is unsafe for parking. Proper illumination of the lights is driven by accelerometers incorporated into the arms of the level indicator.
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