Motor vehicles – With leveling device
Reexamination Certificate
2011-04-19
2011-04-19
Ilan, Ruth (Department: 3616)
Motor vehicles
With leveling device
C280S006150, C280S006153, C254S418000, C254S425000
Reexamination Certificate
active
07926600
ABSTRACT:
A vehicle leveling assembly includes a plurality of jack assemblies corresponding to four quadrants of a vehicle, and a plurality of sensors for determining jack position and rate of movement. A method of detecting contacting between the shafts of the jack assemblies and the ground includes measuring pulse width of current emitted by the hall effect sensor to monitor the speed of the shafts and recognizing contact with the ground when the shaft slows down. A method of detecting contacting between the shafts of the jack assemblies and the ground includes measuring the electric motor current signal and correlating a pulse from the current signal to the electric motor revolutions per minute and travel of the shafts. A method of calibrating the leveling assembly includes measuring a change in inclination as the jack assemblies are extended a known distance to determine the distance between the jack assemblies. A method of leveling includes extending the shafts an additional compacting distance to ensure accurate calculations of shaft extension, prior to attempting to level the vehicle.
REFERENCES:
patent: 4746133 (1988-05-01), Hanser et al.
patent: 5143386 (1992-09-01), Uriarte
patent: 5350983 (1994-09-01), Miller et al.
patent: 5913525 (1999-06-01), Schneider et al.
patent: 6584385 (2003-06-01), Ford et al.
patent: 6885924 (2005-04-01), Ford et al.
patent: 7226057 (2007-06-01), Eichhorn et al.
patent: 7389994 (2008-06-01), Trudeau et al.
patent: 7407189 (2008-08-01), Hiebert et al.
patent: 7617018 (2009-11-01), Ford et al.
patent: 7621538 (2009-11-01), Nordmeyer et al.
patent: 2009/0189134 (2009-07-01), Ford et al.
patent: 2010/0176359 (2010-07-01), Wisner
Atwood, Literature No. MPD 66166, Levelegs System, Installation•Operation•Maintenance brochure, 12 pages, Sep. 27, 2004.
Curtis Christopher E.
Flynn Charles Lee
Dickenson Wright PLLC
Dura Global Technologies LLC
Ilan Ruth
Jones Richard A.
Watson Dean B.
LandOfFree
Vehicle leveling and attitude positioning system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vehicle leveling and attitude positioning system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle leveling and attitude positioning system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2715831