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. 27, 2004
Filed:
Mar. 11, 2002
Applicant:
Inventor:
Jae Kwan Kim, Seoul 137-947, KR;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04H 9/02 ; E04B 1/98 ;
U.S. Cl.
CPC ...
E04H 9/02 ; E04B 1/98 ;
Abstract
A bi-directional rolling pendulum seismic isolation system for reducing seismic force acting on a structure by rolling pendulum movements, the system having a lower plate forming a rolling path in a first direction; an upper plate forming a rolling path in a second direction; and a roller assembly performing a pendulum motion by rolling and moving along the lower and upper plates wherein the roller assembly performs the pendulum motion when seismic load is applied, thereby reducing the seismic load of a structure.