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:
Oct. 06, 1998
Filed:
Mar. 13, 1997
Shigeru Fujimoto, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A seismic isolation device comprises a floor body which is arranged on a structural floor and to which an object of seismic isolation is mounted, a first restoring member disposed on the structural floor and adapted to impart a horizontal restoring force to the floor body when the floor body is horizontally displaced with respect to the structural floor, a first damping member arranged in association with the first restoring member and adapted to impart a horizontal damping force when the floor body is horizontally displaced with respect to the structural floor, a first engaging member projecting from the floor body towards the structural floor, a second engaging member provided on the first restoring member and sliding while coming into contact with the first engaging member, a second restoring member disposed to a lower portion of the floor body and adapted to impart a vertical restoring force when the floor body is vertically displaced with respect to the structural floor, a second damping member arranged in association with the second restoring member and adapted to impart a vertical damping force when the floor body is vertically displaced with respect to the structural floor, and a support mechanism for supporting the floor body to be movable in a horizontal direction.