US Patent No: 8,166,809
Number of patents in Portfolio can not be more than 2000
In-tire multi-element piezoelectric sensor
Stats
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May 1, 2012
Issued date -
Sep 20, 2006
filing date -
12/374,355
serial no -
In Force
status
Importance
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Abstract
Disclosed is an apparatus and methodology for monitoring tire related conditions. A substrate is provided having one or more pairs of sensors mounted thereon. The pairs of sensors are mounted in predetermined relationship to each other at predetermined separation distances such that rotational direction, speed and other parameters of a tire with which the sensors may be associated may be determined. In some embodiments, plural effective pairs of sensors are provided so that mounting orientation of the sensor need not be predetermined.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,862,486 Revolution counter attached to tires | 57 | 1987 | |
| 5,749,984 Tire monitoring system and method | 78 | 1995 | |
| 6,725,713 System for generating electric power from a rotating tire's mechanical energy using reinforced piezoelectric materials | 36 | 2003 | |
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| 5,457,447 Portable power source and RF tag utilizing same | 59 | 1993 | |
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| 4,510,484 Piezoelectric reed power supply for use in abnormal tire condition warning systems | 93 | 1983 | |
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| 2006/0044,125 Device for detecting the position of a vehicle wheel | 9 | 2003 | |
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