Device for measuring the position of a push rod of a pneumatic booster
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United States of America Patent
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Jul 13, 1993
Grant Date -
N/A
app pub date -
Dec 13, 1991
filing date -
Dec 20, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a device for measuring the position of a push rod (30) of a pneumatic booster consisting of a housing (10) divided into a front chamber (20) and a rear chamber (22) by way of a moveable wall (18) returned to its rest position by a restoring spring (34), the booster actuating a piston (84) of a master cylinder (86) by means of the push rod (30), the measuring device comprising a first part (40) stationary relative to the housing (10) of the booster and a moveable second part (60), the first part (40) and second part (60) carrying electrical contacts (46, 46', 48, 48', 84; 76, 78). According to the invention, the first part (40) and second part (60) are cylindrical and coaxial, and they are arranged round the push rod.
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