Device for monitoring the pressure of a vehicle tire
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United States of America Patent
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Mar 28, 1995
Issued Date -
N/A
app pub date -
Jul 2, 1993
filing date -
Aug 29, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus is furnished for sensing the tire pressure and for generating a signal by way of an actuator. If the tire pressure drops below the predetermined reference tire pressure, then this is signalled immediately and instantly within a relatively small pressure tolerance threshold. The pressure sensitive device 1 includes a valve device 7. The valve device 7 connects the tire pressure, applied to the actuator 4 and acting against the force of the compression spring 6, to the atmosphere if the tire pressure drops below a predetermined reference tire pressure. The apparatus is suitable for generating a permanent signal, even in case no further pressure remains in a tire.
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