Low pressure, tread wear and speed indicator for vehicle tire

Details Low pressure, tread wear and speed indicator for vehicle tire Low pressure, tread wear and speed indicator for vehicle tire

1977-09-21

1979-10-23

Yasich, Daniel M.

Signals and indicators

Vehicle

Tire inflation or deflation

152330A, B60C 2302

Patent

active

041716760

ABSTRACT:
A low pressure, tread wear and speed indicator for a tire includes at least one abutment member secured to the exterior surface of one of the sidewalls of the tire adjacent to the tread, which projects laterally outward from the sidewall. The abutment member is positioned at a distance radially inwardly from the tread such that, upon tire deflation or excessive tread wear or a combination thereof, the abutment will strike the road surface during vehicle operation, to produce a vibrational and/or audible signal perceivable by the driver, indicating an unsafe tire condition. The indicator may also include a weighted insert embedded within the abutment member which, upon operation of the vehicle at an excessive or illegal rate of speed, will produce an eccentric tire condition which, in turn, causes a vibrational signal. A tire deflation indicator which includes a segmented radially-extending rib formed on the interior surface of the tire sidewall is also provided.

REFERENCES:
patent: 565451 (1896-08-01), Gregory
patent: 1228204 (1917-05-01), Getman
patent: 1505784 (1924-08-01), Heerwagen
patent: 1764076 (1930-06-01), Hayes
patent: 1870742 (1932-08-01), Pierce
patent: 2227074 (1940-12-01), Erickson
patent: 2268312 (1941-12-01), Stanton
patent: 2800098 (1957-07-01), Crosby, Jr.
patent: 3990491 (1976-11-01), Hampshire et al.

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