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
07370428
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.
REFERENCES:
patent: 3290786 (1966-12-01), Parkin
patent: 4745687 (1988-05-01), Wilhelmy
patent: 5046587 (1991-09-01), Jones
patent: 5136784 (1992-08-01), Marantz
patent: 5159761 (1992-11-01), Cagan et al.
patent: 5458315 (1995-10-01), Blatz et al.
patent: 5488779 (1996-02-01), Schultheis
patent: 5592745 (1997-01-01), Heger et al.
patent: 5610575 (1997-03-01), Gioutsos
patent: 5956260 (1999-09-01), Heger
patent: 6002974 (1999-12-01), Schifferan
patent: 6104307 (2000-08-01), Hanratty
patent: D444286 (2001-06-01), Ahne
patent: 6268794 (2001-07-01), Tzanev
patent: 6456194 (2002-09-01), Carlson
patent: 6526668 (2003-03-01), Beckhart et al.
patent: 6836972 (2005-01-01), Drahos et al.
patent: 6995680 (2006-02-01), Fong
patent: 7040603 (2006-05-01), Tai
patent: 2004/0256815 (2004-12-01), Eichhorn
patent: 2007/0120707 (2007-05-01), Donnelly et al.
patent: 2007/0146154 (2007-06-01), Teller
patent: 2007/0180719 (2007-08-01), Donnelly et al.
patent: 4336922 (1995-05-01), None
patent: 0430813 (1991-06-01), None
B & D Manufacturing, Inc.
Bennett G. Bradley
Sheridan & Ross P.C.
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