Pressure indicator for tires

Signals and indicators – Vehicle – Tire inflation or deflation

Patent

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Details

731468, 116272, B60C 2304, G01L 708

Patent

active

056876726

ABSTRACT:
A pressure indicator for tires comprised of a lower cylindrical housing dimensioned for removable coupling with a valve stem of a tire. A flexible diaphragm is disposed within the lower cylindrical housing. An upper cylindrical housing is coupled with the lower cylindrical housing. A T-shaped indicating pin extends through the upper cylindrical housing to couple with the flexible diaphragm. A tri-level spring is coupled around the T-shaped indicating pin. A magnifying dome couples with the upper cylindrical housing. The magnifying dome has an indicating chart positioned therein.

REFERENCES:
patent: 1291901 (1919-01-01), Hurd
patent: 2738752 (1956-03-01), Dascombe
patent: 2794343 (1957-06-01), Lagrange
patent: 2795204 (1957-06-01), Rose
patent: 3236097 (1966-02-01), Tessmer
patent: 3779080 (1973-12-01), Smith
patent: 3910120 (1975-10-01), Martin
patent: 4606391 (1986-08-01), Achterholt

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