Tire pressure sensing system
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United States of America Patent
Stats
-
May 18, 1982
Grant Date -
N/A
app pub date -
Feb 19, 1980
filing date -
Feb 19, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pressure indicating system for continually monitoring tire pressure in a moving vehicle in which a pressure sensing means attached to the wheel activates an alarm to alert a driver that the pressure in one of his tires is abnormally low. A magnet is shifted by the pressure sensing means to activate a Hall effect switch located on a non-rotating portion of the vehicle to trigger the alarm. The pressure sensing means also acts to relieve high pressure above a predetermined pressure from the tire to prevent over pressurizing of the tire. The alarm indicates which of the tires is at low pressure and preferably comprises an inexpensive electronic system having a flashing light for indicating which tire is at low pressure.
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