Safety tire, method of making and method of improved traffic safety with use thereof
OwnerJohn O'Brien, Patrick O'Brieninventors
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Abstract
A tire in which a tire manufacturer has determined the tractive capacity at numerous levels of tread wear, the tire having at least one visual warning indicator located at a tread depth corresponding to a percentage loss of tractive capacity. Also, a method of making the tire and a method improving traffic safety through use of such a tire combined with educating the consumer as to proper use of the tire.
Claims20
A tire in which a tire manufacturer has determined the tractive capacity at a plurality of levels of tread wear, the tire having at least one visual warning indicator located at a first tread depth corresponding to a predetermined percentage loss of tractive capacity.
A method of making a tire having warning indicators comprising:
- measuring the tractive capacity of an unworn sample tire;
- measuring the tractive capacity of the sample tire at a plurality of stages of wear;
- determining the depth of tread wear at which the sample tire suffers a predetermined percentage loss of tractive capacity;
- and
- fabricating a tire with wear indicators located at predetermined levels of tread depth corresponding the depth of tread wear at which the sample tire suffers a predetermined percentage loss of tractive capacity.
A method of improving traffic safety comprising:
- providing tires having at least one visual warning indicator located at a first tread depth corresponding to a predetermined percentage loss of performance capacity;
- and
- informing consumers as to the purpose of the at least one visual warning indicator.
A method of making a tire having warning indicators comprising:
- measuring the performance capacity of an unworn sample tire;
- measuring the performance capacity of the sample tire at a plurality of stages of wear;
- determining the depth of tread wear at which the sample tire suffers a predetermined percentage loss of performance capacity;
- and
- fabricating a tire with wear indicators located at predetermined levels of tread depth corresponding the depth of tread wear at which the sample tire suffers a predetermined percentage loss of performance capacity.
Dependencies are inferred from the claim text.