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:
Jul. 02, 2002
Filed:
Jun. 09, 2000
Hirokazu Iemura, Kyoto, JP;
Akira Igarashi, Kyoto, JP;
Kyoto University, Kyoto, JP;
Abstract
A floorboard is supported on bridge gate shaped piers so as to move horizontally by rollers provided at the corners of the floorboard. Rubber members installed between the floorboard and the piers restoring force to restitute elastically the floorboard to a neutral position when the floorboard moves horizontally. A shaker , which is fixed on the floorboard , excites the floorboard linearly and reciprocally by a weight movable along a ball screen shaft with a motor . The inertia force of the floorboard generates, in a real-size and real-time scale, vibration for a main structure to which a vibration-controlling damper is installed. The vibration of the floorboard is inputted to the damper and the dynamic response of the damper is observed by a computer