Measuring and testing – Tire – tread or roadway – Tire inflation testing installation
Patent
1997-05-13
1999-01-05
Dombroske, George M.
Measuring and testing
Tire, tread or roadway
Tire inflation testing installation
116 34R, 340442, A06F 73146, A06F 7380
Patent
active
058566198
ABSTRACT:
A tire pressure indicator includes a cylindrical connecter, a lamp cover combined with the connecter, and an electric conducting unit arranged in the lamp cover. The connecter has an air guide disc to press open an air valve of a tire to let air in the tire flow out into the connecter, If the air pressure in the tire is sufficient, a bellows in the connecter expands inward to push an inverted T-shaped disc inward, which then pushes inward a battery laterally put in an insulating ring so that the negative of the battery disconnected from a negative washer fitted on the inverted T-shaped disc, turning off an LED lamp fixed in the lamp cover. If the air pressure in the tire is insufficient, the bellows shrinks back, permitting the battery move back by elasticity of a spring and contact with the negative washer as to turn on the lamp.
REFERENCES:
patent: 4601254 (1986-07-01), Huang et al.
patent: 4945337 (1990-07-01), Huang
patent: 5025244 (1991-06-01), Huang
patent: 5604481 (1997-02-01), Lin
Amrozowicz Paul D.
Dombroske George M.
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