Apparatus for monitoring and controlling the tire inflation pressure in a tire testing machine
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United States of America Patent
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-
Apr 17, 1990
Grant Date -
N/A
app pub date -
Jul 13, 1989
filing date -
Jul 27, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for monitoring and controlling the tire inflation pressure in a tire testing machine comprises first and second measuring rim portions for mounting a tire therebetween, and a pressure sensor operable to detect the inflation pressure of the tire. The pressure sensor has a pressure-receiving surface which is arranged to directly detect the pressure in the interior of the tire. The pressure sensor rotates with the tire in a tire testing run. A spindle connected to the measuring rim portions and rotatable therewith has conduit means for supplying compressed air to inflate the tire. A control means is operable to close off the conduit means, thereby constituting a closed volume of air defined by the space within the tire, the space between the measuring rim portions holding the tire, and the conduit means in the spindle, that volume of air rotating as a unit with the components defining same, during a tire testing operation.
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