The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 1997
Filed:
Mar. 06, 1996
John Michael Maloney, Medina, OH (US);
The Goodyear Tire & Rubber Company, Akron, OH (US);
Abstract
A method for analyzing tire uniformity including a force machine, the method including the steps of measuring radial and lateral forces of a tire, generating radial and lateral waveforms from measurements of the radial and lateral forces of the tire, and calculating the first and second derivatives of the waveforms, preferably using a point-to-point slope calculation. The derivatives may be represented in terms of peak-to-peak pounds force per square seconds, in terms of frequency spectrum, in terms of maximum rate of change, or in terms of root mean squares. The derivatives are then compared to predetermined uniformity specifications, and tires not falling with the specifications are removed. Tangential forces may also be analyzed.