Dual purpose tire gauge

Details Dual purpose tire gauge Dual purpose tire gauge

1989-02-16

1990-04-17

Woodiel, Donald O.

Measuring and testing

Tire, tread or roadway

Tire inflation testing installation

73744, B60C 2302, G01L 716

Patent

active

049169440

ABSTRACT:
Tire air pressure and tire tread depth are measured by a single gauge provided with an air inlet for engaging the tire valve, whereby air pressure from the tire moves a spring-biased piston and causes a free end of a sliding bar to extend outwardly from the gauge, with the pressure reading being displayed on a scale by an indicator needle mounted on a shaft that is rotated by the sliding bar. Measurement of tire tread depth is accomplished by inserting the free end of the sliding bar into the tread space and engaging an outlet end of the gauge against the tread surface to retract the sliding bar and provide a tread depth reading on the scale.

REFERENCES:
patent: 3696668 (1972-10-01), Patrick
patent: 4526030 (1985-07-01), Vecera, Jr.

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