Method of quality grading in uniformity tests of rotors, in part

Details Method of quality grading in uniformity tests of rotors, in part Method of quality grading in uniformity tests of rotors, in part

1986-05-20

1987-10-27

Woodiel, Donald O.

Measuring and testing

Tire, tread or roadway

Tire inflation testing installation

G01M 1702

Patent

active

047021039

ABSTRACT:
The invention pertains to a method of quality grading in uniformity tests of rotors, in particular automobile tires, where a force and/or geometric variation function obtained in a measuring run from the rotating rotor is analyzed by comparison with limit values, with the root-mean-square value or the arithmetic mean of the variation function being used for such comparison with limit values.

REFERENCES:
patent: 3927561 (1975-12-01), Schleimann
patent: 3948004 (1976-04-01), Gruber
patent: 4018087 (1977-04-01), Wenz
patent: 4134292 (1979-01-01), Honlinger et al.
patent: 4160378 (1979-07-01), Himmler
patent: 4311044 (1982-01-01), Marshall et al.
patent: 4502328 (1985-03-01), Wood et al.
patent: 4545239 (1985-10-01), Himmler et al.
Hofmann Report 70, "Tire Uniformity Grading Machine for Car Tires RGM-D," Gebruder Hofmann GmbH & Co. KG.

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