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:
Apr. 24, 2001
Filed:
Jul. 20, 1999
Applicant:
Inventors:
Shin Tada, Kanagawa, JP;
Tatsuo Yata, Kanagawa, JP;
Keiichiro Tabata, Kanagawa, JP;
Yoichi Nabeshima, Kanagawa, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 1/810 ;
U.S. Cl.
CPC ...
C08G 1/810 ;
Abstract
A lightweight shock absorber has an ideal F-S waveform, and is formed of a foam resin material. The cross-sectional area of the absorber in the compression axis direction and the vertical direction changes at least partially in the compression axis direction, and consequently the relation between distortion and compressive stress in the compression axis direction (F-S waveform) is approximately linear.