Measuring and testing – Tire – tread or roadway – Tire inflation testing installation
Reexamination Certificate
2007-12-28
2010-06-08
Caputo, Lisa M (Department: 2855)
Measuring and testing
Tire, tread or roadway
Tire inflation testing installation
C073S700000, C073S717000, C073S753000
Reexamination Certificate
active
07730772
ABSTRACT:
A wireless and batteryless pressure sensor apparatus comprises of a SAW sensor and an antenna mounted on a printed circuit board. Optionally, and RFID tag in used in combination with the SAW sensor. A sensor antenna and a RFID antenna can be located on the printed circuit board such that the antennas communicate electrically with the sensor and the RFID device. The sensor can be interrogated utilizing a radio frequency, which is used to excite a SAW crystal inside the sensor. The interrogation signal causes the SAW to resonate wherein a resonant frequency changes with the pressure and temperature that is applied to the sensor. An interrogator can receive a return (echo) signal representing a change in SAW sensor properties (e.g., diaphragm change). A printed circuit board can be mounted on a stainless steel port and overpackaged with standard processes for hermetically sealing the sensor, or sensor and RFID device with at least one antenna.
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Cook James D.
Dixon Daniel
Kumar Sachin
Marsh Brian J.
Qasimi Mohammed A J
Caputo Lisa M
Honeywell International , Inc.
Jenkins Jermaine
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