Automatic leveling system

  • US 4,746,133 A
  • Filed: 02/19/1987
  • Issued: 05/24/1988
  • Est. Priority Date: 02/19/1987
  • Status: Expired due to Term
First Claim
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1. In combination for use in a vehicle having a front, a back and sides to level the vehicle relative to gravity,a plurality of jacks each disposed at an individual position relative to the vehicle and in displaced relationship to the other jacks for adjusting the vertical position of the vehicle relative to gravity in accordance with the operation of pairs of adjacent jacks,means disposed relative to the vehicle for sensing the tilting of the vehicle from a level disposition relative to gravity,means responsive to the sensing means for operating at particular times pairs of adjacent jacks in a particular order to obtain an adjustment in the vertical position of the vehicle from side and front to back to obtain a resultant leveling of the vehicle to gravity, andthe means for sensing the tilting of the vehicle senses a low corner and with the means for operating pairs of jacks additionally operating an individual jack to correct the low corner before the pairs of the jacks are operated to level the vehicle.

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