Method and apparatus for correlating tire inflation pressure and load
First Claim
Patent Images
1. A method of correlating tire pressure and loading comprising the steps of:
- gauging the tire inflation pressure;
providing footprint determining means on a hard, non-deflecting smooth backing;
placing the tire, inflated and loaded, on the footprint determining means which is supported to give proper tire loading under full load of the tire to obtain an actual footprint;
removing the tire and its load from the footprint determining means;
comparing the actual footprint formed on the footprint determining means to means for determining footprint length to obtain an actual footprint length; and
using the footprint length and tire pressure to determine the actual load on the tire.
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Accused Products
Abstract
Method and apparatus for correlating tire inflation pressure and tire load in the field using static footprint length on a tire contact gauge, pressure sensitive recording paper and a nomogram to determine actual tire load of a tire mounted on a vehicle.
9 Citations
13 Claims
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1. A method of correlating tire pressure and loading comprising the steps of:
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gauging the tire inflation pressure; providing footprint determining means on a hard, non-deflecting smooth backing; placing the tire, inflated and loaded, on the footprint determining means which is supported to give proper tire loading under full load of the tire to obtain an actual footprint; removing the tire and its load from the footprint determining means; comparing the actual footprint formed on the footprint determining means to means for determining footprint length to obtain an actual footprint length; and using the footprint length and tire pressure to determine the actual load on the tire. - View Dependent Claims (2, 3, 4, 5)
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6. Apparatus for correlating tire pressure and loading comprising means for determining the tire footprint of a non-deflecting type;
- means for obtaining tire inflation pressure;
a tire contact gauge, said tire contact gauge including a predetermined footprint length and a scale for measurement of other footprint lengths, said tire contact gauge further compatible with said means for determining the tire footprint to compare the tire footprint obtained therefrom with said tire contact gauge; and
means for determining tire load using the footprint length obtained with said tire contact gauge and the tire inflation pressure obtained with the means for obtaining tire inflation pressure. - View Dependent Claims (7, 8, 9, 10)
- means for obtaining tire inflation pressure;
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11. Apparatus for correlating tire pressure and loading comprising means for determining the tire footprint of a non-deflecting type;
- means for obtaining tire inflation pressure;
means for determining footprint length compatible with said means for determining the tire footprint to compare the tire footprint obtained therefrom with said means for determining footprint length; and
a nomogram on which the footprint length obtained from said means for determining footprint length may be plotted together with the tire inflation pressure obtained from said means for obtaining tire inflation pressure to thereby determine the load on the tire. - View Dependent Claims (12, 13)
- means for obtaining tire inflation pressure;
Specification