Measuring and testing – Tire – tread or roadway
Reexamination Certificate
2008-05-13
2008-05-13
Allen, Andre J. (Department: 2855)
Measuring and testing
Tire, tread or roadway
C073S146200, C340S444000, C340S438000
Reexamination Certificate
active
10594207
ABSTRACT:
A deformation of a rotating tire on a road surface is calculated the following. At first, time series data of acceleration extracted from measurement data of acceleration corresponding to one round of tire rotation is subjected to a time integration of second order to obtain displacement data so as to calculate the deformation at the tread portion. The time series data of acceleration and the displacement data in the non-contact region excluding a road surface contact region on the tire circumference at the tread portion are respectively approximated to calculate a first and a second approximation curves. The two approximation curves are subtracted respectively from the time series data of acceleration and the calculated displacement data, thereby extracting time series data of acceleration due to tire deformation and obtaining the deformation at the tread portion.
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Notification of Reasons for Refusal by Japanese Intellectual Property Office on Aug. 29, 2006, abstract only.
Kitazaki Tsuyoshi
Koguchi Noritaka
Miyashita Naoshi
Allen Andre J.
Knobbe Martens Olson & Bear LLP
The Yokohama Rubber Co. Ltd.
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