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. 24, 1987
Filed:
Jun. 20, 1984
Bela Csak, Budapest, HU;
Abstract
The present invention relates to a system comprising of motion-damping sandwich elements and energy-absorbing steel mandrels arranged between the building foundation and the superstructure, where at least a certain part of the sections receiving the steel mandrels in the building foundation is formed as a sliding block movable in the horizontal direction and embedded with expansion gaps in all directions in relation to the foundation. These blocks are placed onto sliding layers of low friction coefficient. During the earthquake, the fixed spring elements will be deformed. As soon as the deformation reaches a fixed limit value, the spring elements embedded with the lowest expansion gap step in and increase the rigidity. The stepping in of the further springs can be controlled by selection of the expansion gaps.