Device for surveillance of a pressure in a vehicle tire
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United States of America Patent
Stats
-
Apr 7, 1992
Grant Date -
N/A
app pub date -
Aug 29, 1990
filing date -
Sep 9, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for the surveillance of the pressure of a vehicle tire includes a pressure-sensitive device which senses the tire pressure and generates, in case of a pressure loss in the tire, a pressure change signal. A set member is actuated with this pressure change signal such that the signal member performs a stroke. A sensor tests the position of the set member and recognizes when the tire pressure is too low. A pressure-sensitive device (1) includes a check valve (9, 12), opening toward the pressure discharge port (3). The pressure at the pressure discharge port (3) can be blocked versus the tire pressure based on the check valve (9, 12). The invention device is suitable for furnishing a continuous signal up to the complete emptying of a tire.
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