Electronic measuring device for measuring the pressure and...

Details Electronic measuring device for measuring the pressure and... Electronic measuring device for measuring the pressure and...

2006-03-14

2006-03-14

Oen, William (Department: 2855)

Measuring and testing

Tire, tread or roadway

Reexamination Certificate

active

07010969

ABSTRACT:
For measuring the pressure and tread depth of a tire, an electronic measuring device is disclosed to include a housing, a tread scale, which has a sliding block coupled to the housing and movable along an elongated sliding slot and a measuring tip fixedly connected to the sliding block and movable in and out of the housing, a variable resistor mounted inside the housing for outputting a variation of resistance value indicative of movement of the measuring tip relative to the housing, a pressure sensor mounted in the housing for detecting the pressure of a tire, a display, and a circuit board mounted inside the housing and electrically connected with the variable resistor, the pressure sensor and the display for converting the variation of resistance value received from the variable resistor into a readable distance value and the signal outputted from the pressure sensor into a readable pressure reading for display on the displays.

REFERENCES:
patent: 6634223 (2003-10-01), Hartmann et al.
patent: 6826951 (2004-12-01), Schuessler et al.

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