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:
Mar. 20, 1979
Filed:
Mar. 01, 1977
Applicant:
Inventors:
Keiichiro Yabuta, Yokohama, JP;
Nagayuki Marumo, Yokohama, JP;
Yoichi Shimabara, Takatsuki, JP;
Masahiro Ishigaki, Ibaragi, JP;
Ken Ishihara, Ibaragi, JP;
Yoshiki Mayama, Nishinomiya, JP;
Assignees:
Nissan Motor Company, Limited, Yokohama, JP;
The Toyo Rubber Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60C / ;
U.S. Cl.
CPC ...
1523 / ; 1523 / ; 116 / ;
Abstract
Projections made of a different and less abrasion resistant kind of rubber to that constituting the exterior of the tire are arranged to contact the road during low pressure conditions, whereby the amount of rubber worn off indicates the amount of fatigue accumulated and degree of internal damage done by running the tire at that pressure.