Sidewall plunging tire air pressure gauge

Details Sidewall plunging tire air pressure gauge Sidewall plunging tire air pressure gauge

1996-07-22

1997-10-14

Chilcot, Richard

Measuring and testing

Tire, tread or roadway

Tire inflation testing installation

B60C 2302

Patent

active

056774834

ABSTRACT:
A tire air pressure gauge that measures air pressure without connecting to the inside of the tire is disclosed. It generally consists of four parts: a handle, a plunger, a spring, and an indicator bar. The plunger is retractably mounted in the handle through the spring. The indicator bar is also slidably mounted on the handle. When plunged against the side wall of a tire, the plunger will retract, and will push the indicator bar outward. The amount of the portion of the indicator bar that is pushed out, indicates how high the air pressure inside the tire is. The more the indicator bar is pushed out, the higher the air pressure inside the tire.

REFERENCES:
patent: 3592218 (1971-07-01), Guy et al.
patent: 3824849 (1974-07-01), Foxhall
patent: 4072048 (1978-02-01), Arvan
patent: 4574629 (1986-03-01), Weng

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